diff options
Diffstat (limited to 'libgcc')
117 files changed, 9265 insertions, 51 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 00c4fa63b7b..b26254f20d6 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,5 +1,103 @@ 2011-08-05 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> + * config/t-softfp: Remove. + * soft-fp: Moved from ../gcc/config. + * soft-fp/README: Remove t-softfp reference. + * soft-fp/t-softfp: Move to config/t-softfp. + (softfp_machine_header): Remove. + (softfp_file_list): Remove config subdir. + (soft-fp-objects): New variable. + ($(soft-fp-objects)): Set INTERNAL_CFLAGS. + (LIB2FUNCS_EXTRA): Add to LIB2ADD instead. + (SFP_MACHINE, $(SFP_MACHINE)): Remove. + * config/t-softfp-excl: New file. + * config/t-softfp-sfdf: New file. + * config/t-softfp-tf: New file. + * config/no-sfp-machine.h: New file. + * config/arm/sfp-machine.h: New file. + * config/arm/t-softfp: New file. + * config/c6x/sfp-machine.h: New file. + * config/i386/32/t-fprules-softfp: Rename to ... + * config/i386/32/t-softfp: ... this. + (tifunctions, LIB2ADD): Remove. + (softfp_int_modes): Override. + * config/i386/64/t-softfp-compat (tf-functions): Remove config + subdir. + * config/i386/64/eqtf2.c: Likewise. + * config/i386/64/getf2.c: Likewise. + * config/i386/64/letf2.c: Likewise. + * config/ia64/sft-machine.h: New file. + * config/ia64/t-fprules-softfp: Rename to ... + * config/ia64/t-softfp: ... this. + * config/lm32/sfp-machine.h: New file. + * config/moxie/t-moxie-softfp: Remove. + * config/rs6000/ibm-ldouble-format: New file. + * config/rs6000/ibm-ldouble.c: New file. + * config/rs6000/libgcc-ppc-glibc.ver: New file + * config/rs6000/libgcc-ppc64.ver: New file + * config/rs6000/sfp-machine.h: New file. + * config/rs6000/t-freebsd: New file. + * config/rs6000/t-ibm-ldouble: New file. + * config/rs6000/t-ldbl128: Use $(srcdir) to refer to + libgcc-ppc-glibc.ver. + * config/rs6000/t-linux64: New file. + * config/rs6000/t-ppccomm (LIB2ADD): Add + $(srcdir)/config/rs6000/ibm-ldouble.c. + * config/rs6000/t-ppccomm-ldbl: New file. + * config/score/sfp-machine.h: New file. + * config.host (sfp_machine_header): Explain. + (arm*-*-linux*): Add t-softfp-sfdf, t-softfp-excl, arm/t-softfp, + t-softfp to tmake_file. + (arm*-*-uclinux*): Likewise. + (arm*-*-ecos-elf): Likewise. + (arm*-*-eabi*, arm*-*-symbianelf*): Likewise. + (arm*-*-rtems*): Likewise. + (arm*-*-elf): Likewise. + (ia64*-*-linux*): Replace ia64/t-fprules-softfp by ia64/t-softfp + in tmake_file. + Add t-softfp-tf, t-softfp-excl, t-softfp to tmake_file. + (lm32-*-elf*, lm32-*-rtems*): Add t-softfp-sfdf, t-softfp to tmake_file. + (lm32-*-uclinux*): Likewise. + (moxie-*-*): Replace moxie/t-moxie-softfp by t-softfp-sfdf, + t-softfp-excl, t-softfp. + (powerpc-*-darwin*): Add rs6000/t-ibm-ldouble to tmake_file. + (powerpc64-*-darwin*): Likewise. + (powerpc-*-freebsd*): Add t-softfp-sfdf, t-softfp-excl, t-softfp + to tmake_file. + (powerpc-*-eabisimaltivec*): Add rs6000/t-ppccomm-ldbl to + tmake_file. + (powerpc-*-eabisim*): Likewise. + (powerpc-*-elf*): Likewise. + (powerpc-*-eabialtivec*): Likewise. + (powerpc-xilinx-eabi*): Likewise. + (powerpc-*-rtems*): Likewise. + (powerpc-*-linux*, powerpc64-*-linux*): Add t-softfp-sfdf, + t-softfp-excl, t-softfp to tmake_file. + (powerpc-wrs-vxworks, powerpc-wrs-vxworksae): Add + rs6000/t-ppccomm-ldbl to tmake_file. + (powerpcle-*-elf*): Likewise. + (powerpcle-*-eabisim*): Likewise. + (powerpcle-*-eabi*): Likewise. + (rs6000-ibm-aix4.[3456789]*, powerpc-ibm-aix4.[3456789]*): Add + rs6000/t-ibm-ldouble to tmake_file. + (rs6000-ibm-aix5.1.*, powerpc-ibm-aix5.1.*): Likewise. + (rs6000-ibm-aix[56789].*, powerpc-ibm-aix[56789].*): Likewise. + (score-*-elf): Add t-softfp-sfdf, t-softfp-excl, t-softfp to tmake_file. + (tic6x-*-*): Likewise. + (i[34567]86-*-darwin*, x86_64-*-darwin*, + i[34567]86-*-kfreebsd*-gnu, x86_64-*-kfreebsd*-gnu, + i[34567]86-*-linux*, x86_64-*-linux*, i[34567]86-*-gnu*, + i[34567]86-*-solaris2*, x86_64-*-solaris2.1[0-9]*, + i[34567]86-*-cygwin*, i[34567]86-*-mingw*, x86_64-*-mingw*, + i[34567]86-*-freebsd*, x86_64-*-freebsd*): Add t-softfp-tf, + t-softfp to tmake_file. + * configure.ac (sfp_machine_header): Provide default if unset. + Substitute. + Link sfp-machine.h to config/$sfp_machine_header. + * configure: Regenerate. + +2011-08-05 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> + * Makefile.in (double_type_size, long_double_type_size): Set. Remove $(fpbit-in-libgcc) support. (FPBIT_FUNCS, DPBIT_FUNCS, TPBIT_FUNCS): New variables. diff --git a/libgcc/config.host b/libgcc/config.host index cd4f054336b..be6d720ac28 100644 --- a/libgcc/config.host +++ b/libgcc/config.host @@ -54,6 +54,9 @@ # subdirectory will be ignored. # md_unwind_header The name of a header file defining # MD_FALLBACK_FRAME_STATE_FOR. +# sfp_machine_header The name of a sfp-machine.h header file for soft-fp. +# Defaults to "$cpu_type/sfp-machine.h" if it exists, +# no-sfp-machine.h otherwise. # tmake_file A list of machine-description-specific # makefile-fragments, if different from # "$cpu_type/t-$cpu_type". @@ -282,6 +285,7 @@ arm*-*-linux*) # ARM GNU/Linux with ELF unwind_header=config/arm/unwind-arm.h ;; esac + tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp" ;; arm*-*-uclinux*) # ARM ucLinux tmake_file="${tmake_file} t-fixedpoint-gnu-prefix" @@ -291,8 +295,10 @@ arm*-*-uclinux*) # ARM ucLinux unwind_header=config/arm/unwind-arm.h ;; esac + tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp" ;; arm*-*-ecos-elf) + tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp" ;; arm*-*-eabi* | arm*-*-symbianelf* ) tmake_file="${tmake_file} t-fixedpoint-gnu-prefix" @@ -304,11 +310,14 @@ arm*-*-eabi* | arm*-*-symbianelf* ) tmake_file="${tmake_file} arm/t-symbian" ;; esac + tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp" unwind_header=config/arm/unwind-arm.h ;; arm*-*-rtems*) + tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp" ;; arm*-*-elf) + tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp" ;; arm*-wince-pe*) ;; @@ -318,7 +327,6 @@ avr-*-rtems*) avr-*-*) # Make HImode functions for AVR tmake_file="${cpu_type}/t-avr t-fpbit" - ;; bfin*-elf*) tmke_file=t-fdpbit @@ -464,7 +472,7 @@ ia64*-*-freebsd*) ;; ia64*-*-linux*) extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o" - tmake_file="ia64/t-ia64 t-crtfm t-softfp ia64/t-fprules-softfp ia64/t-softfp-compat ia64/t-glibc ia64/t-eh-ia64 t-libunwind" + tmake_file="ia64/t-ia64 t-crtfm t-softfp-tf ia64/t-softfp t-softfp ia64/t-softfp-compat ia64/t-glibc ia64/t-eh-ia64 t-libunwind" if test x$with_system_libunwind != xyes ; then tmake_file="${tmake_file} t-libunwind-elf ia64/t-glibc-libunwind" fi @@ -482,11 +490,11 @@ iq2000*-*-elf*) ;; lm32-*-elf*|lm32-*-rtems*) extra_parts="crtbegin.o crtend.o crti.o crtn.o" - tmake_file="lm32/t-lm32 lm32/t-elf t-softfp" + tmake_file="lm32/t-lm32 lm32/t-elf t-softfp-sfdf t-softfp" ;; lm32-*-uclinux*) extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o" - tmake_file="lm32/t-lm32 lm32/t-uclinux t-softfp" + tmake_file="lm32/t-lm32 lm32/t-uclinux t-softfp-sfdf t-softfp" ;; m32r-*-elf*|m32r-*-rtems*) tmake_file=t-fdpbit @@ -587,7 +595,7 @@ mn10300-*-*) tmake_file=t-fdpbit ;; moxie-*-*) - tmake_file="moxie/t-moxie moxie/t-moxie-softfp" + tmake_file="moxie/t-moxie t-softfp-sfdf t-softfp-excl t-softfp" extra_parts="crtbegin.o crtend.o crti.o crtn.o" ;; pdp11-*-*) @@ -606,13 +614,15 @@ powerpc-*-darwin*) md_unwind_header=rs6000/darwin-unwind.h ;; esac + tmake_file="$tmake_file rs6000/t-ibm-ldouble" extra_parts="$extra_parts crt2.o" ;; powerpc64-*-darwin*) + tmake_file="$tmake_file rs6000/t-ibm-ldouble" extra_parts="$extra_parts crt2.o" ;; powerpc-*-freebsd*) - tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-freebsd t-softfp" + tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-freebsd t-softfp-sfdf t-softfp-excl t-softfp" ;; powerpc-*-netbsd*) ;; @@ -620,56 +630,56 @@ powerpc-*-eabispe*) tmake_file="${tmake_file} rs6000/t-ppccomm" ;; powerpc-*-eabisimaltivec*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpc-*-eabisim*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpc-*-elf*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpc-*-eabialtivec*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpc-xilinx-eabi*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpc-*-eabi*) tmake_file="${tmake_file} rs6000/t-ppccomm t-fdpbit" ;; powerpc-*-rtems*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpc-*-linux* | powerpc64-*-linux*) - tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-ldbl128 t-softfp t-dfprules rs6000/t-ppc64-fp" + tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-ldbl128 t-softfp-sfdf t-softfp-excl t-dfprules rs6000/t-ppc64-fp t-softfp" md_unwind_header=rs6000/linux-unwind.h ;; powerpc-wrs-vxworks|powerpc-wrs-vxworksae) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpc-*-lynxos*) tmake_file=t-fdpbit ;; powerpcle-*-elf*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpcle-*-eabisim*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; powerpcle-*-eabi*) - tmake_file=t-fdpbit + tmake_file="rs6000/t-ppccomm-ldbl t-fdpbit" ;; rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*) md_unwind_header=rs6000/aix-unwind.h - tmake_file="t-fdpbit rs6000/t-ppc64-fp" + tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-ibm-ldouble" ;; rs6000-ibm-aix5.1.* | powerpc-ibm-aix5.1.*) md_unwind_header=rs6000/aix-unwind.h - tmake_file="t-fdpbit rs6000/t-ppc64-fp" + tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-ibm-ldouble" ;; rs6000-ibm-aix[56789].* | powerpc-ibm-aix[56789].*) md_unwind_header=rs6000/aix-unwind.h - tmake_file="t-fdpbit rs6000/t-ppc64-fp" + tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-ibm-ldouble" ;; rx-*-elf) extra_parts="crtbegin.o crtend.o" @@ -688,6 +698,7 @@ s390x-ibm-tpf*) md_unwind_header=s390/tpf-unwind.h ;; score-*-elf) + tmake_file="${tmake_file} t-softfp-sfdf t-softfp-excl t-softfp" ;; sh-*-elf* | sh[12346l]*-*-elf* | \ sh-*-linux* | sh[2346lbe]*-*-linux* | \ @@ -774,7 +785,7 @@ spu-*-elf*) tmake_file="t-fdpbit spu/t-elf" ;; tic6x-*-*) - tmake_file="${tmake_file} t-gnu-prefix" + tmake_file="${tmake_file} t-softfp-sfdf t-softfp-excl t-softfp t-gnu-prefix" ;; v850*-*-*) tmake_file=t-fdpbit @@ -829,9 +840,11 @@ i[34567]86-*-darwin* | x86_64-*-darwin* | \ i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]* | \ i[34567]86-*-cygwin* | i[34567]86-*-mingw* | x86_64-*-mingw* | \ i[34567]86-*-freebsd* | x86_64-*-freebsd*) + tmake_file="${tmake_file} t-softfp-tf" if test "${host_address}" = 32; then - tmake_file="${tmake_file} t-softfp i386/${host_address}/t-fprules-softfp" + tmake_file="${tmake_file} i386/${host_address}/t-softfp" fi + tmake_file="${tmake_file} t-softfp" ;; esac diff --git a/libgcc/config/arm/sfp-machine.h b/libgcc/config/arm/sfp-machine.h new file mode 100644 index 00000000000..a89d05a00ba --- /dev/null +++ b/libgcc/config/arm/sfp-machine.h @@ -0,0 +1,105 @@ +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +/* The type of the result of a floating point comparison. This must + match `__libgcc_cmp_return__' in GCC for the target. */ +typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); +#define CMPtype __gcc_CMPtype + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_H ((_FP_QNANBIT_H << 1) - 1) +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_H 0 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* Someone please check this. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 + +#if defined __ARMEB__ +# define __BYTE_ORDER __BIG_ENDIAN +#else +# define __BYTE_ORDER __LITTLE_ENDIAN +#endif + + +/* Define ALIASNAME as a strong alias for NAME. */ +# define strong_alias(name, aliasname) _strong_alias(name, aliasname) +# define _strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); + +#ifdef __ARM_EABI__ +/* Rename functions to their EABI names. */ +/* The comparison functions need wrappers for EABI semantics, so + leave them unmolested. */ +#define __negsf2 __aeabi_fneg +#define __subsf3 __aeabi_fsub +#define __addsf3 __aeabi_fadd +#define __floatunsisf __aeabi_ui2f +#define __floatsisf __aeabi_i2f +#define __floatundisf __aeabi_ul2f +#define __floatdisf __aeabi_l2f +#define __mulsf3 __aeabi_fmul +#define __divsf3 __aeabi_fdiv +#define __unordsf2 __aeabi_fcmpun +#define __fixsfsi __aeabi_f2iz +#define __fixunssfsi __aeabi_f2uiz +#define __fixsfdi __aeabi_f2lz +#define __fixunssfdi __aeabi_f2ulz +#define __floatdisf __aeabi_l2f + +#define __negdf2 __aeabi_dneg +#define __subdf3 __aeabi_dsub +#define __adddf3 __aeabi_dadd +#define __floatunsidf __aeabi_ui2d +#define __floatsidf __aeabi_i2d +#define __extendsfdf2 __aeabi_f2d +#define __truncdfsf2 __aeabi_d2f +#define __floatundidf __aeabi_ul2d +#define __floatdidf __aeabi_l2d +#define __muldf3 __aeabi_dmul +#define __divdf3 __aeabi_ddiv +#define __unorddf2 __aeabi_dcmpun +#define __fixdfsi __aeabi_d2iz +#define __fixunsdfsi __aeabi_d2uiz +#define __fixdfdi __aeabi_d2lz +#define __fixunsdfdi __aeabi_d2ulz +#define __floatdidf __aeabi_l2d +#define __extendhfsf2 __gnu_h2f_ieee +#define __truncsfhf2 __gnu_f2h_ieee + +#endif /* __ARM_EABI__ */ diff --git a/libgcc/config/arm/t-softfp b/libgcc/config/arm/t-softfp new file mode 100644 index 00000000000..4ede438baf6 --- /dev/null +++ b/libgcc/config/arm/t-softfp @@ -0,0 +1,2 @@ +softfp_wrap_start := '\#ifdef __ARM_ARCH_6M__' +softfp_wrap_end := '\#endif' diff --git a/libgcc/config/c6x/sfp-machine.h b/libgcc/config/c6x/sfp-machine.h new file mode 100644 index 00000000000..2c90e582ae4 --- /dev/null +++ b/libgcc/config/c6x/sfp-machine.h @@ -0,0 +1,120 @@ +/* Soft-FP definitions for TI C6X. + Copyright (C) 2010, 2011 Free Software Foundation, Inc. + + This files is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + This file is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with GCC; see the file COPYING.LIB. If not see + <http://www.gnu.org/licenses/>. */ + +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_H ((_FP_QNANBIT_H << 1) - 1) +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_H 0 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* Someone please check this. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 + +#if defined _BIG_ENDIAN +# define __BYTE_ORDER __BIG_ENDIAN +#else +# define __BYTE_ORDER __LITTLE_ENDIAN +#endif + + +/* Define ALIASNAME as a strong alias for NAME. */ +# define strong_alias(name, aliasname) _strong_alias(name, aliasname) +# define _strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); + +/* Rename helper functions to the names specified in the C6000 ELF ABI. */ +#define __fixdfsi __c6xabi_fixdi +#define __fixsfsi __c6xabi_fixfi +#define __floatsidf __c6xabi_fltid +#define __floatunsidf __c6xabi_fltud +#define __floatsisf __c6xabi_fltif +#define __floatunsisf __c6xabi_fltuf +#define __truncdfsf2 __c6xabi_cvtdf +#define __extendsfdf2 __c6xabi_cvtfd +#define __adddf3 __c6xabi_addd +#define __subdf3 __c6xabi_subd +#define __muldf3 __c6xabi_mpyd +#define __divdf3 __c6xabi_divd +#define __negdf2 __c6xabi_negd +#define __absdf2 __c6xabi_absd +#define __addsf3 __c6xabi_addf +#define __subsf3 __c6xabi_subf +#define __mulsf3 __c6xabi_mpyf +#define __divsf3 __c6xabi_divf +#define __negsf2 __c6xabi_negf +#define __abssf2 __c6xabi_absf +#define __lesf2 __c6xabi_cmpf +#define __ledf2 __c6xabi_cmpd +#define __ltsf2 __gnu_ltsf2 +#define __ltdf2 __gnu_ltdf2 +#define __gesf2 __gnu_gesf2 +#define __gedf2 __gnu_gedf2 +#define __gtsf2 __gnu_gtsf2 +#define __gtdf2 __gnu_gtdf2 +#define __eqsf2 __gnu_eqsf2 +#define __eqdf2 __gnu_eqdf2 +#define __nesf2 __c6xabi_neqf +#define __nedf2 __c6xabi_neqd +#define __unordsf2 __c6xabi_unordf +#define __unorddf2 __c6xabi_unordd diff --git a/libgcc/config/i386/32/t-fprules-softfp b/libgcc/config/i386/32/t-fprules-softfp deleted file mode 100644 index 8e7f3233b71..00000000000 --- a/libgcc/config/i386/32/t-fprules-softfp +++ /dev/null @@ -1,8 +0,0 @@ -# Filter out TImode functions -tifunctions = fixtfti.c fixunstfti.c floattitf.c floatuntitf.c -tifunctions := $(addprefix $(gcc_srcdir)/config/soft-fp/, $(tifunctions)) - -LIB2ADD := $(filter-out $(tifunctions), $(LIB2ADD)) - -# Provide fallbacks for __builtin_copysignq and __builtin_fabsq. -LIB2ADD += $(srcdir)/config/i386/32/tf-signs.c diff --git a/libgcc/config/i386/32/t-softfp b/libgcc/config/i386/32/t-softfp new file mode 100644 index 00000000000..a48a5b3b116 --- /dev/null +++ b/libgcc/config/i386/32/t-softfp @@ -0,0 +1,5 @@ +# Omit TImode functions +softfp_int_modes := si di + +# Provide fallbacks for __builtin_copysignq and __builtin_fabsq. +LIB2ADD += $(srcdir)/config/i386/32/tf-signs.c diff --git a/libgcc/config/i386/64/eqtf2.c b/libgcc/config/i386/64/eqtf2.c index 785c42ad5c6..23982fb9e6f 100644 --- a/libgcc/config/i386/64/eqtf2.c +++ b/libgcc/config/i386/64/eqtf2.c @@ -2,7 +2,7 @@ #define __netf2 __netf2_shared #endif -#include "config/soft-fp/eqtf2.c" +#include "soft-fp/eqtf2.c" #ifdef SHARED #undef __netf2 diff --git a/libgcc/config/i386/64/getf2.c b/libgcc/config/i386/64/getf2.c index 280447c1e83..e2c41649059 100644 --- a/libgcc/config/i386/64/getf2.c +++ b/libgcc/config/i386/64/getf2.c @@ -2,7 +2,7 @@ #define __gttf2 __gttf2_shared #endif -#include "config/soft-fp/getf2.c" +#include "soft-fp/getf2.c" #ifdef SHARED #undef __gttf2 diff --git a/libgcc/config/i386/64/letf2.c b/libgcc/config/i386/64/letf2.c index 81e0881c844..784337fff67 100644 --- a/libgcc/config/i386/64/letf2.c +++ b/libgcc/config/i386/64/letf2.c @@ -2,7 +2,7 @@ #define __lttf2 __lttf2_shared #endif -#include "config/soft-fp/letf2.c" +#include "soft-fp/letf2.c" #ifdef SHARED #undef __lttf2 diff --git a/libgcc/config/i386/64/t-softfp-compat b/libgcc/config/i386/64/t-softfp-compat index afaa526ae29..0978695c3a4 100644 --- a/libgcc/config/i386/64/t-softfp-compat +++ b/libgcc/config/i386/64/t-softfp-compat @@ -4,7 +4,7 @@ # Filter out the following TFmode functions. tf-compats = getf2.c letf2.c eqtf2.c -tf-functions := $(addprefix $(gcc_srcdir)/config/soft-fp/, $(tf-compats)) +tf-functions := $(addprefix $(srcdir)/soft-fp/, $(tf-compats)) LIB2ADD := $(filter-out $(tf-functions), $(LIB2ADD)) LIB2ADD += $(addprefix $(srcdir)/config/i386/64/, $(tf-compats)) diff --git a/libgcc/config/i386/sfp-machine.h b/libgcc/config/i386/sfp-machine.h new file mode 100644 index 00000000000..f2df869653f --- /dev/null +++ b/libgcc/config/i386/sfp-machine.h @@ -0,0 +1,5 @@ +#ifdef __x86_64__ +#include "config/i386/64/sfp-machine.h" +#else +#include "config/i386/32/sfp-machine.h" +#endif diff --git a/libgcc/config/ia64/sfp-machine.h b/libgcc/config/ia64/sfp-machine.h new file mode 100644 index 00000000000..bdcce772ca8 --- /dev/null +++ b/libgcc/config/ia64/sfp-machine.h @@ -0,0 +1,116 @@ +#define _FP_W_TYPE_SIZE 64 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +typedef int TItype __attribute__ ((mode (TI))); +typedef unsigned int UTItype __attribute__ ((mode (TI))); + +#define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype)) + +/* The type of the result of a floating point comparison. This must + match `__libgcc_cmp_return__' in GCC for the target. */ +typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); +#define CMPtype __gcc_CMPtype + +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S _FP_QNANBIT_S +#define _FP_NANFRAC_D _FP_QNANBIT_D +#define _FP_NANFRAC_E _FP_QNANBIT_E, 0 +#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0 +#define _FP_NANSIGN_S 1 +#define _FP_NANSIGN_D 1 +#define _FP_NANSIGN_E 1 +#define _FP_NANSIGN_Q 1 + +#define _FP_KEEPNANFRACP 1 + +/* Here is something Intel misdesigned: the specs don't define + the case where we have two NaNs with same mantissas, but + different sign. Different operations pick up different NaNs. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if (_FP_FRAC_GT_##wc(X, Y) \ + || (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + else \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define FP_EX_INVALID 0x01 +#define FP_EX_DENORM 0x02 +#define FP_EX_DIVZERO 0x04 +#define FP_EX_OVERFLOW 0x08 +#define FP_EX_UNDERFLOW 0x10 +#define FP_EX_INEXACT 0x20 + +#define FP_HANDLE_EXCEPTIONS \ + do { \ + double tmp, dummy; \ + if (_fex & FP_EX_INVALID) \ + { \ + tmp = 0.0; \ + __asm__ __volatile__ ("frcpa.s0 %0,p1=f0,f0" \ + : "=f" (tmp) : : "p1" ); \ + } \ + if (_fex & FP_EX_DIVZERO) \ + { \ + __asm__ __volatile__ ("frcpa.s0 %0,p1=f1,f0" \ + : "=f" (tmp) : : "p1" ); \ + } \ + if (_fex & FP_EX_OVERFLOW) \ + { \ + dummy = __DBL_MAX__; \ + __asm__ __volatile__ ("fadd.d.s0 %0=%1,%1" \ + : "=f" (dummy) : "0" (dummy)); \ + } \ + if (_fex & FP_EX_UNDERFLOW) \ + { \ + dummy = __DBL_MIN__; \ + __asm__ __volatile__ ("fnma.d.s0 %0=%1,%1,f0" \ + : "=f" (tmp) : "f" (dummy)); \ + } \ + if (_fex & FP_EX_INEXACT) \ + { \ + dummy = __DBL_MAX__; \ + __asm__ __volatile__ ("fsub.d.s0 %0=%1,f1" \ + : "=f" (dummy) : "0" (dummy)); \ + } \ + } while (0) + +#define FP_RND_NEAREST 0 +#define FP_RND_ZERO 0xc00L +#define FP_RND_PINF 0x800L +#define FP_RND_MINF 0x400L + +#define _FP_DECL_EX \ + unsigned long int _fpsr __attribute__ ((unused)) = FP_RND_NEAREST + +#define FP_INIT_ROUNDMODE \ + do { \ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" \ + : "=r" (_fpsr)); \ + } while (0) + +#define FP_ROUNDMODE (_fpsr & 0xc00L) + +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 + +#define __BYTE_ORDER __LITTLE_ENDIAN + +/* Define ALIASNAME as a strong alias for NAME. */ +#define strong_alias(name, aliasname) _strong_alias(name, aliasname) +#define _strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); diff --git a/libgcc/config/ia64/t-fprules-softfp b/libgcc/config/ia64/t-softfp index 90acc376ec9..90acc376ec9 100644 --- a/libgcc/config/ia64/t-fprules-softfp +++ b/libgcc/config/ia64/t-softfp diff --git a/libgcc/config/lm32/sfp-machine.h b/libgcc/config/lm32/sfp-machine.h new file mode 100644 index 00000000000..19038485493 --- /dev/null +++ b/libgcc/config/lm32/sfp-machine.h @@ -0,0 +1,51 @@ +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* Someone please check this. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 + +#define __BYTE_ORDER __BIG_ENDIAN + +/* Define ALIASNAME as a strong alias for NAME. */ +# define strong_alias(name, aliasname) _strong_alias(name, aliasname) +# define _strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); diff --git a/libgcc/config/moxie/t-moxie-softfp b/libgcc/config/moxie/t-moxie-softfp deleted file mode 100644 index 61c575132e9..00000000000 --- a/libgcc/config/moxie/t-moxie-softfp +++ /dev/null @@ -1,9 +0,0 @@ -softfp_float_modes := sf df -softfp_int_modes := si di -softfp_extensions := sfdf -softfp_truncations := dfsf -softfp_machine_header := moxie/sfp-machine.h -softfp_exclude_libgcc2 := y - -# softfp seems to be missing a whole bunch of prototypes. -TARGET_LIBGCC2_CFLAGS += -Wno-missing-prototypes diff --git a/libgcc/config/no-sfp-machine.h b/libgcc/config/no-sfp-machine.h new file mode 100644 index 00000000000..8f7341d4f92 --- /dev/null +++ b/libgcc/config/no-sfp-machine.h @@ -0,0 +1 @@ +/* Dummy sfp-machine.h header for targets that don't need one. */ diff --git a/libgcc/config/rs6000/ibm-ldouble-format b/libgcc/config/rs6000/ibm-ldouble-format new file mode 100644 index 00000000000..3d1a06a141f --- /dev/null +++ b/libgcc/config/rs6000/ibm-ldouble-format @@ -0,0 +1,91 @@ +Long double format +================== + + Each long double is made up of two IEEE doubles. The value of the +long double is the sum of the values of the two parts (except for +-0.0). The most significant part is required to be the value of the +long double rounded to the nearest double, as specified by IEEE. For +Inf values, the least significant part is required to be one of +0.0 +or -0.0. No other requirements are made; so, for example, 1.0 may be +represented as (1.0, +0.0) or (1.0, -0.0), and the low part of a NaN +is don't-care. + +Classification +-------------- + +A long double can represent any value of the form + s * 2^e * sum(k=0...105: f_k * 2^(-k)) +where 's' is +1 or -1, 'e' is between 1022 and -968 inclusive, f_0 is +1, and f_k for k>0 is 0 or 1. These are the 'normal' long doubles. + +A long double can also represent any value of the form + s * 2^-968 * sum(k=0...105: f_k * 2^(-k)) +where 's' is +1 or -1, f_0 is 0, and f_k for k>0 is 0 or 1. These are +the 'subnormal' long doubles. + +There are four long doubles that represent zero, two that represent ++0.0 and two that represent -0.0. The sign of the high part is the +sign of the long double, and the sign of the low part is ignored. + +Likewise, there are four long doubles that represent infinities, two +for +Inf and two for -Inf. + +Each NaN, quiet or signalling, that can be represented as a 'double' +can be represented as a 'long double'. In fact, there are 2^64 +equivalent representations for each one. + +There are certain other valid long doubles where both parts are +nonzero but the low part represents a value which has a bit set below +2^(e-105). These, together with the subnormal long doubles, make up +the denormal long doubles. + +Many possible long double bit patterns are not valid long doubles. +These do not represent any value. + +Limits +------ + +The maximum representable long double is 2^1024-2^918. The smallest +*normal* positive long double is 2^-968. The smallest denormalised +positive long double is 2^-1074 (this is the same as for 'double'). + +Conversions +----------- + +A double can be converted to a long double by adding a zero low part. + +A long double can be converted to a double by removing the low part. + +Comparisons +----------- + +Two long doubles can be compared by comparing the high parts, and if +those compare equal, comparing the low parts. + +Arithmetic +---------- + +The unary negate operation operates by negating the low and high parts. + +An absolute or absolute-negate operation must be done by comparing +against zero and negating if necessary. + +Addition and subtraction are performed using library routines. They +are not at present performed perfectly accurately, the result produced +will be within 1ulp of the range generated by adding or subtracting +1ulp from the input values, where a 'ulp' is 2^(e-106) given the +exponent 'e'. In the presence of cancellation, this may be +arbitrarily inaccurate. Subtraction is done by negation and addition. + +Multiplication is also performed using a library routine. Its result +will be within 2ulp of the correct result. + +Division is also performed using a library routine. Its result will +be within 3ulp of the correct result. + + +Copyright (C) 2004 Free Software Foundation, Inc. + +Copying and distribution of this file, with or without modification, +are permitted in any medium without royalty provided the copyright +notice and this notice are preserved. diff --git a/libgcc/config/rs6000/ibm-ldouble.c b/libgcc/config/rs6000/ibm-ldouble.c new file mode 100644 index 00000000000..b0b8037cdce --- /dev/null +++ b/libgcc/config/rs6000/ibm-ldouble.c @@ -0,0 +1,438 @@ +/* 128-bit long double support routines for Darwin. + Copyright (C) 1993, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011 + Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +<http://www.gnu.org/licenses/>. */ + + +/* Implementations of floating-point long double basic arithmetic + functions called by the IBM C compiler when generating code for + PowerPC platforms. In particular, the following functions are + implemented: __gcc_qadd, __gcc_qsub, __gcc_qmul, and __gcc_qdiv. + Double-double algorithms are based on the paper "Doubled-Precision + IEEE Standard 754 Floating-Point Arithmetic" by W. Kahan, February 26, + 1987. An alternative published reference is "Software for + Doubled-Precision Floating-Point Computations", by Seppo Linnainmaa, + ACM TOMS vol 7 no 3, September 1981, pages 272-283. */ + +/* Each long double is made up of two IEEE doubles. The value of the + long double is the sum of the values of the two parts. The most + significant part is required to be the value of the long double + rounded to the nearest double, as specified by IEEE. For Inf + values, the least significant part is required to be one of +0.0 or + -0.0. No other requirements are made; so, for example, 1.0 may be + represented as (1.0, +0.0) or (1.0, -0.0), and the low part of a + NaN is don't-care. + + This code currently assumes big-endian. */ + +#if (!defined (__LITTLE_ENDIAN__) \ + && (defined (__MACH__) || defined (__powerpc__) || defined (_AIX))) + +#define fabs(x) __builtin_fabs(x) +#define isless(x, y) __builtin_isless (x, y) +#define inf() __builtin_inf() + +#define unlikely(x) __builtin_expect ((x), 0) + +#define nonfinite(a) unlikely (! isless (fabs (a), inf ())) + +/* Define ALIASNAME as a strong alias for NAME. */ +# define strong_alias(name, aliasname) _strong_alias(name, aliasname) +# define _strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); + +/* All these routines actually take two long doubles as parameters, + but GCC currently generates poor code when a union is used to turn + a long double into a pair of doubles. */ + +long double __gcc_qadd (double, double, double, double); +long double __gcc_qsub (double, double, double, double); +long double __gcc_qmul (double, double, double, double); +long double __gcc_qdiv (double, double, double, double); + +#if defined __ELF__ && defined SHARED \ + && (defined __powerpc64__ || !(defined __linux__ || defined __gnu_hurd__)) +/* Provide definitions of the old symbol names to satisfy apps and + shared libs built against an older libgcc. To access the _xlq + symbols an explicit version reference is needed, so these won't + satisfy an unadorned reference like _xlqadd. If dot symbols are + not needed, the assembler will remove the aliases from the symbol + table. */ +__asm__ (".symver __gcc_qadd,_xlqadd@GCC_3.4\n\t" + ".symver __gcc_qsub,_xlqsub@GCC_3.4\n\t" + ".symver __gcc_qmul,_xlqmul@GCC_3.4\n\t" + ".symver __gcc_qdiv,_xlqdiv@GCC_3.4\n\t" + ".symver .__gcc_qadd,._xlqadd@GCC_3.4\n\t" + ".symver .__gcc_qsub,._xlqsub@GCC_3.4\n\t" + ".symver .__gcc_qmul,._xlqmul@GCC_3.4\n\t" + ".symver .__gcc_qdiv,._xlqdiv@GCC_3.4"); +#endif + +typedef union +{ + long double ldval; + double dval[2]; +} longDblUnion; + +/* Add two 'long double' values and return the result. */ +long double +__gcc_qadd (double a, double aa, double c, double cc) +{ + longDblUnion x; + double z, q, zz, xh; + + z = a + c; + + if (nonfinite (z)) + { + z = cc + aa + c + a; + if (nonfinite (z)) + return z; + x.dval[0] = z; /* Will always be DBL_MAX. */ + zz = aa + cc; + if (fabs(a) > fabs(c)) + x.dval[1] = a - z + c + zz; + else + x.dval[1] = c - z + a + zz; + } + else + { + q = a - z; + zz = q + c + (a - (q + z)) + aa + cc; + + /* Keep -0 result. */ + if (zz == 0.0) + return z; + + xh = z + zz; + if (nonfinite (xh)) + return xh; + + x.dval[0] = xh; + x.dval[1] = z - xh + zz; + } + return x.ldval; +} + +long double +__gcc_qsub (double a, double b, double c, double d) +{ + return __gcc_qadd (a, b, -c, -d); +} + +#ifdef __NO_FPRS__ +static double fmsub (double, double, double); +#endif + +long double +__gcc_qmul (double a, double b, double c, double d) +{ + longDblUnion z; + double t, tau, u, v, w; + + t = a * c; /* Highest order double term. */ + + if (unlikely (t == 0) /* Preserve -0. */ + || nonfinite (t)) + return t; + + /* Sum terms of two highest orders. */ + + /* Use fused multiply-add to get low part of a * c. */ +#ifndef __NO_FPRS__ + asm ("fmsub %0,%1,%2,%3" : "=f"(tau) : "f"(a), "f"(c), "f"(t)); +#else + tau = fmsub (a, c, t); +#endif + v = a*d; + w = b*c; + tau += v + w; /* Add in other second-order terms. */ + u = t + tau; + + /* Construct long double result. */ + if (nonfinite (u)) + return u; + z.dval[0] = u; + z.dval[1] = (t - u) + tau; + return z.ldval; +} + +long double +__gcc_qdiv (double a, double b, double c, double d) +{ + longDblUnion z; + double s, sigma, t, tau, u, v, w; + + t = a / c; /* highest order double term */ + + if (unlikely (t == 0) /* Preserve -0. */ + || nonfinite (t)) + return t; + + /* Finite nonzero result requires corrections to the highest order term. */ + + s = c * t; /* (s,sigma) = c*t exactly. */ + w = -(-b + d * t); /* Written to get fnmsub for speed, but not + numerically necessary. */ + + /* Use fused multiply-add to get low part of c * t. */ +#ifndef __NO_FPRS__ + asm ("fmsub %0,%1,%2,%3" : "=f"(sigma) : "f"(c), "f"(t), "f"(s)); +#else + sigma = fmsub (c, t, s); +#endif + v = a - s; + + tau = ((v-sigma)+w)/c; /* Correction to t. */ + u = t + tau; + + /* Construct long double result. */ + if (nonfinite (u)) + return u; + z.dval[0] = u; + z.dval[1] = (t - u) + tau; + return z.ldval; +} + +#if defined (_SOFT_DOUBLE) && defined (__LONG_DOUBLE_128__) + +long double __gcc_qneg (double, double); +int __gcc_qeq (double, double, double, double); +int __gcc_qne (double, double, double, double); +int __gcc_qge (double, double, double, double); +int __gcc_qle (double, double, double, double); +long double __gcc_stoq (float); +long double __gcc_dtoq (double); +float __gcc_qtos (double, double); +double __gcc_qtod (double, double); +int __gcc_qtoi (double, double); +unsigned int __gcc_qtou (double, double); +long double __gcc_itoq (int); +long double __gcc_utoq (unsigned int); + +extern int __eqdf2 (double, double); +extern int __ledf2 (double, double); +extern int __gedf2 (double, double); + +/* Negate 'long double' value and return the result. */ +long double +__gcc_qneg (double a, double aa) +{ + longDblUnion x; + + x.dval[0] = -a; + x.dval[1] = -aa; + return x.ldval; +} + +/* Compare two 'long double' values for equality. */ +int +__gcc_qeq (double a, double aa, double c, double cc) +{ + if (__eqdf2 (a, c) == 0) + return __eqdf2 (aa, cc); + return 1; +} + +strong_alias (__gcc_qeq, __gcc_qne); + +/* Compare two 'long double' values for less than or equal. */ +int +__gcc_qle (double a, double aa, double c, double cc) +{ + if (__eqdf2 (a, c) == 0) + return __ledf2 (aa, cc); + return __ledf2 (a, c); +} + +strong_alias (__gcc_qle, __gcc_qlt); + +/* Compare two 'long double' values for greater than or equal. */ +int +__gcc_qge (double a, double aa, double c, double cc) +{ + if (__eqdf2 (a, c) == 0) + return __gedf2 (aa, cc); + return __gedf2 (a, c); +} + +strong_alias (__gcc_qge, __gcc_qgt); + +/* Convert single to long double. */ +long double +__gcc_stoq (float a) +{ + longDblUnion x; + + x.dval[0] = (double) a; + x.dval[1] = 0.0; + + return x.ldval; +} + +/* Convert double to long double. */ +long double +__gcc_dtoq (double a) +{ + longDblUnion x; + + x.dval[0] = a; + x.dval[1] = 0.0; + + return x.ldval; +} + +/* Convert long double to single. */ +float +__gcc_qtos (double a, double aa __attribute__ ((__unused__))) +{ + return (float) a; +} + +/* Convert long double to double. */ +double +__gcc_qtod (double a, double aa __attribute__ ((__unused__))) +{ + return a; +} + +/* Convert long double to int. */ +int +__gcc_qtoi (double a, double aa) +{ + double z = a + aa; + return (int) z; +} + +/* Convert long double to unsigned int. */ +unsigned int +__gcc_qtou (double a, double aa) +{ + double z = a + aa; + return (unsigned int) z; +} + +/* Convert int to long double. */ +long double +__gcc_itoq (int a) +{ + return __gcc_dtoq ((double) a); +} + +/* Convert unsigned int to long double. */ +long double +__gcc_utoq (unsigned int a) +{ + return __gcc_dtoq ((double) a); +} + +#endif + +#ifdef __NO_FPRS__ + +int __gcc_qunord (double, double, double, double); + +extern int __eqdf2 (double, double); +extern int __unorddf2 (double, double); + +/* Compare two 'long double' values for unordered. */ +int +__gcc_qunord (double a, double aa, double c, double cc) +{ + if (__eqdf2 (a, c) == 0) + return __unorddf2 (aa, cc); + return __unorddf2 (a, c); +} + +#include "soft-fp/soft-fp.h" +#include "soft-fp/double.h" +#include "soft-fp/quad.h" + +/* Compute floating point multiply-subtract with higher (quad) precision. */ +static double +fmsub (double a, double b, double c) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_D(B); + FP_DECL_D(C); + FP_DECL_Q(X); + FP_DECL_Q(Y); + FP_DECL_Q(Z); + FP_DECL_Q(U); + FP_DECL_Q(V); + FP_DECL_D(R); + double r; + long double u, x, y, z; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_D (A, a); + FP_UNPACK_RAW_D (B, b); + FP_UNPACK_RAW_D (C, c); + + /* Extend double to quad. */ +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_EXTEND(Q,D,4,2,X,A); + FP_EXTEND(Q,D,4,2,Y,B); + FP_EXTEND(Q,D,4,2,Z,C); +#else + FP_EXTEND(Q,D,2,1,X,A); + FP_EXTEND(Q,D,2,1,Y,B); + FP_EXTEND(Q,D,2,1,Z,C); +#endif + FP_PACK_RAW_Q(x,X); + FP_PACK_RAW_Q(y,Y); + FP_PACK_RAW_Q(z,Z); + FP_HANDLE_EXCEPTIONS; + + /* Multiply. */ + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(X,x); + FP_UNPACK_Q(Y,y); + FP_MUL_Q(U,X,Y); + FP_PACK_Q(u,U); + FP_HANDLE_EXCEPTIONS; + + /* Subtract. */ + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_Q(U,u); + FP_UNPACK_SEMIRAW_Q(Z,z); + FP_SUB_Q(V,U,Z); + + /* Truncate quad to double. */ +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + V_f[3] &= 0x0007ffff; + FP_TRUNC(D,Q,2,4,R,V); +#else + V_f1 &= 0x0007ffffffffffffL; + FP_TRUNC(D,Q,1,2,R,V); +#endif + FP_PACK_SEMIRAW_D(r,R); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +#endif + +#endif diff --git a/libgcc/config/rs6000/libgcc-ppc-glibc.ver b/libgcc/config/rs6000/libgcc-ppc-glibc.ver new file mode 100644 index 00000000000..8862c14cb3d --- /dev/null +++ b/libgcc/config/rs6000/libgcc-ppc-glibc.ver @@ -0,0 +1,73 @@ +# Copyright (C) 2006, 2007 Free Software Foundation, Inc. +# +# This file is part of GCC. +# +# GCC is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GCC is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GCC; see the file COPYING3. If not see +# <http://www.gnu.org/licenses/>. + +%ifndef _SOFT_FLOAT +%ifndef __powerpc64__ +%exclude { + __multc3 + __divtc3 + __powitf2 + __fixtfdi + __fixunstfdi + __floatditf +} + +GCC_4.1.0 { + # long double support + __multc3 + __divtc3 + __powitf2 + __fixtfdi + __fixunstfdi + __floatditf + +%else +GCC_3.4.4 { +%endif +%else +GCC_4.2.0 { +%endif + + # long double support + __gcc_qadd + __gcc_qsub + __gcc_qmul + __gcc_qdiv + +%ifdef _SOFT_DOUBLE + __gcc_qneg + __gcc_qeq + __gcc_qne + __gcc_qgt + __gcc_qge + __gcc_qlt + __gcc_qle + __gcc_stoq + __gcc_dtoq + __gcc_qtos + __gcc_qtod + __gcc_qtoi + __gcc_qtou + __gcc_itoq + __gcc_utoq +%endif + +%ifdef __NO_FPRS__ + __gcc_qunord +%endif +} diff --git a/libgcc/config/rs6000/libgcc-ppc64.ver b/libgcc/config/rs6000/libgcc-ppc64.ver new file mode 100644 index 00000000000..b27b4b49249 --- /dev/null +++ b/libgcc/config/rs6000/libgcc-ppc64.ver @@ -0,0 +1,7 @@ +GCC_3.4.4 { + # long double support + __gcc_qadd + __gcc_qsub + __gcc_qmul + __gcc_qdiv +} diff --git a/libgcc/config/rs6000/sfp-machine.h b/libgcc/config/rs6000/sfp-machine.h new file mode 100644 index 00000000000..a0d1631bbb8 --- /dev/null +++ b/libgcc/config/rs6000/sfp-machine.h @@ -0,0 +1,68 @@ +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +/* The type of the result of a floating point comparison. This must + match `__libgcc_cmp_return__' in GCC for the target. */ +typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); +#define CMPtype __gcc_CMPtype + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* Someone please check this. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 + +#if defined __BIG_ENDIAN__ || defined _BIG_ENDIAN +# if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN +# error "Both BIG_ENDIAN and LITTLE_ENDIAN defined!" +# endif +# define __BYTE_ORDER __BIG_ENDIAN +#else +# if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN +# define __BYTE_ORDER __LITTLE_ENDIAN +# else +# error "Cannot determine current byte order" +# endif +#endif + + +/* Define ALIASNAME as a strong alias for NAME. */ +# define strong_alias(name, aliasname) _strong_alias(name, aliasname) +# define _strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); diff --git a/libgcc/config/rs6000/t-freebsd b/libgcc/config/rs6000/t-freebsd new file mode 100644 index 00000000000..4234999f3cb --- /dev/null +++ b/libgcc/config/rs6000/t-freebsd @@ -0,0 +1,22 @@ +# Overrides for FreeBSD PowerPC +# +# Copyright (C) 2011 Free Software Foundation, Inc. +# +# This file is part of GCC. +# +# GCC is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GCC is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GCC; see the file COPYING3. If not see +# <http://www.gnu.org/licenses/>. + +# We do not want to build ibm-ldouble.c. +LIB2ADD := $(filter-out ibm-ldouble.c, $(LIB2ADD)) diff --git a/libgcc/config/rs6000/t-ibm-ldouble b/libgcc/config/rs6000/t-ibm-ldouble new file mode 100644 index 00000000000..3f7a2d847e2 --- /dev/null +++ b/libgcc/config/rs6000/t-ibm-ldouble @@ -0,0 +1,6 @@ +# GCC 128-bit long double support routines. +LIB2ADD += $(srcdir)/config/rs6000/ibm-ldouble.c + +HOST_LIBGCC2_CFLAGS += -mlong-double-128 + +SHLIB_MAPFILES += $(srcdir)/config/rs6000/libgcc-ppc64.ver diff --git a/libgcc/config/rs6000/t-ldbl128 b/libgcc/config/rs6000/t-ldbl128 index bdd62f3cdee..ecc3581b1a0 100644 --- a/libgcc/config/rs6000/t-ldbl128 +++ b/libgcc/config/rs6000/t-ldbl128 @@ -1,3 +1,3 @@ -SHLIB_MAPFILES += $(gcc_srcdir)/config/rs6000/libgcc-ppc-glibc.ver +SHLIB_MAPFILES += $(srcdir)/config/rs6000/libgcc-ppc-glibc.ver HOST_LIBGCC2_CFLAGS += -mlong-double-128 diff --git a/libgcc/config/rs6000/t-linux64 b/libgcc/config/rs6000/t-linux64 new file mode 100644 index 00000000000..7b08315abc0 --- /dev/null +++ b/libgcc/config/rs6000/t-linux64 @@ -0,0 +1,2 @@ +softfp_wrap_start := '\#ifndef __powerpc64__' +softfp_wrap_end := '\#endif' diff --git a/libgcc/config/rs6000/t-ppccomm b/libgcc/config/rs6000/t-ppccomm index 4548cd76c17..f75bee22737 100644 --- a/libgcc/config/rs6000/t-ppccomm +++ b/libgcc/config/rs6000/t-ppccomm @@ -1,3 +1,5 @@ +LIB2ADD += $(srcdir)/config/rs6000/ibm-ldouble.c + LIB2ADD_ST += crtsavfpr.S crtresfpr.S \ crtsavgpr.S crtresgpr.S \ crtresxfpr.S crtresxgpr.S \ diff --git a/libgcc/config/rs6000/t-ppccomm-ldbl b/libgcc/config/rs6000/t-ppccomm-ldbl new file mode 100644 index 00000000000..f1d53606677 --- /dev/null +++ b/libgcc/config/rs6000/t-ppccomm-ldbl @@ -0,0 +1 @@ +LIB2ADD += $(srcdir)/config/rs6000/ibm-ldouble.c diff --git a/libgcc/config/score/sfp-machine.h b/libgcc/config/score/sfp-machine.h new file mode 100644 index 00000000000..98f9f1bf491 --- /dev/null +++ b/libgcc/config/score/sfp-machine.h @@ -0,0 +1,57 @@ +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +/* The type of the result of a floating point comparison. This must + match `__libgcc_cmp_return__' in GCC for the target. */ +typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); +#define CMPtype __gcc_CMPtype + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* Someone please check this. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 + +# define __BYTE_ORDER __BIG_ENDIAN + +/* Define ALIASNAME as a strong alias for NAME. */ +# define strong_alias(name, aliasname) _strong_alias(name, aliasname) +# define _strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); + diff --git a/libgcc/config/t-softfp b/libgcc/config/t-softfp index 5d67da01780..35cfac094aa 100644 --- a/libgcc/config/t-softfp +++ b/libgcc/config/t-softfp @@ -1,14 +1,109 @@ +# Copyright (C) 2006, 2007, 2011 Free Software Foundation, Inc. + +# This file is part of GCC. + +# GCC is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. + +# GCC is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with GCC; see the file COPYING3. If not see +# <http://www.gnu.org/licenses/>. + +# Targets using soft-fp should define the following variables: +# +# softfp_float_modes: a list of soft-float floating-point modes, +# e.g. sf df +# softfp_int_modes: a list of integer modes for which to define conversions, +# e.g. si di +# softfp_extensions: a list of extensions between floating-point modes, +# e.g. sfdf +# softfp_truncations: a list of truncations between floating-point modes, +# e.g. dfsf +# +# Extensions and truncations should include those where only one mode +# is a soft-float mode; for example, sftf where sf is hard-float and +# tf is soft-float. +# +# If the libgcc2.c functions should not be replaced, also define: +# +# softfp_exclude_libgcc2 := y +# +# Avoiding replacing the libgcc2.c functions is a temporary measure +# for targets with both hard-float and soft-float multilibs, since +# these variables apply for all multilibs. With toplevel libgcc, +# soft-fp can be used conditionally on the multilib instead. +# +# If the code should not be compiled at all for some multilibs, define: +# +# softfp_wrap_start: text to put at the start of wrapper source files, +# output with echo +# e.g. '#ifndef __powerpc64__' +# softfp_wrap_end: text to put at the end of wrapper source files, +# e.g. '#endif' +# +# This is another temporary measure. + +softfp_float_funcs = add$(m)3 div$(m)3 eq$(m)2 ge$(m)2 le$(m)2 mul$(m)3 \ + neg$(m)2 sub$(m)3 unord$(m)2 +softfp_floatint_funcs = fix$(m)$(i) fixuns$(m)$(i) \ + float$(i)$(m) floatun$(i)$(m) + +softfp_func_list := \ + $(foreach m,$(softfp_float_modes), \ + $(softfp_float_funcs) \ + $(foreach i,$(softfp_int_modes), \ + $(softfp_floatint_funcs))) \ + $(foreach e,$(softfp_extensions),extend$(e)2) \ + $(foreach t,$(softfp_truncations),trunc$(t)2) + +ifeq ($(softfp_exclude_libgcc2),y) +# This list is taken from mklibgcc.in and doesn't presently allow for +# 64-bit targets where si should become di and di should become ti. +softfp_func_list := $(filter-out floatdidf floatdisf fixunsdfsi fixunssfsi \ + fixunsdfdi fixdfdi fixunssfdi fixsfdi fixxfdi fixunsxfdi \ + floatdixf fixunsxfsi fixtfdi fixunstfdi floatditf \ + floatundidf floatundisf floatundixf floatunditf,$(softfp_func_list)) +endif + +ifeq ($(softfp_wrap_start),) +softfp_file_list := \ + $(addsuffix .c,$(addprefix $(srcdir)/soft-fp/,$(softfp_func_list))) +else +softfp_file_list := $(addsuffix .c,$(softfp_func_list)) + +$(softfp_file_list): + echo $(softfp_wrap_start) > $@ + echo '#include "soft-fp/$@"' >> $@ + echo $(softfp_wrap_end) >> $@ +endif + # Disable missing prototype and type limit warnings. The prototypes # for the functions in the soft-fp files have not been brought across # from glibc. -# cfr. srcdirify in gcc/Makefile.in -soft-fp-files = $(filter $(gcc_srcdir)/config/soft-fp/%, $(LIB2ADD)) \ - $(filter $(gcc_objdir)/config/soft-fp/%, $(LIB2ADD)) +soft-fp-objects = $(addsuffix $(objext), $(softfp_file_list)) \ + $(addsuffix _s$(objext), $(softfp_file_list)) -soft-fp-objects-base = $(basename $(notdir $(soft-fp-files))) +$(soft-fp-objects) : INTERNAL_CFLAGS += -Wno-missing-prototypes -Wno-type-limits -soft-fp-objects = $(addsuffix $(objext), $(soft-fp-objects-base)) \ - $(addsuffix _s$(objext), $(soft-fp-objects-base)) +LIB2ADD += $(softfp_file_list) -$(soft-fp-objects) : INTERNAL_CFLAGS += -Wno-missing-prototypes -Wno-type-limits +ifneq ($(softfp_exclude_libgcc2),y) +# Functions in libgcc2.c are excluded for each soft-float mode (a +# target may have both soft-float and hard-float modes), for the fixed +# list of integer modes (si and di) for which libgcc2.c defines any +# such functions. Depending on the target, the si and di symbols may +# in fact define di and ti functions. + +LIB2FUNCS_EXCLUDE += \ + $(addprefix _,$(foreach m,$(softfp_float_modes), \ + $(foreach i,si di, \ + $(softfp_floatint_funcs)))) +endif diff --git a/libgcc/config/t-softfp-excl b/libgcc/config/t-softfp-excl new file mode 100644 index 00000000000..9d9786b6aa0 --- /dev/null +++ b/libgcc/config/t-softfp-excl @@ -0,0 +1 @@ +softfp_exclude_libgcc2 := y diff --git a/libgcc/config/t-softfp-sfdf b/libgcc/config/t-softfp-sfdf new file mode 100644 index 00000000000..2fbc63dcd17 --- /dev/null +++ b/libgcc/config/t-softfp-sfdf @@ -0,0 +1,5 @@ +softfp_float_modes := sf df +softfp_int_modes := si di +softfp_extensions := sfdf +softfp_truncations := dfsf +softfp_exclude_libgcc2 := n diff --git a/libgcc/config/t-softfp-tf b/libgcc/config/t-softfp-tf new file mode 100644 index 00000000000..f567629ad0a --- /dev/null +++ b/libgcc/config/t-softfp-tf @@ -0,0 +1,5 @@ +softfp_float_modes := tf +softfp_int_modes := si di ti +softfp_extensions := sftf dftf xftf +softfp_truncations := tfsf tfdf tfxf +softfp_exclude_libgcc2 := n diff --git a/libgcc/configure b/libgcc/configure index 0ead080691d..80bb61c80af 100644 --- a/libgcc/configure +++ b/libgcc/configure @@ -594,6 +594,7 @@ asm_hidden_op extra_parts cpu_type tmake_file +sfp_machine_header set_use_emutls set_have_cc_tls vis_hide @@ -4608,6 +4609,17 @@ if test "$enable_tls $gcc_cv_use_emutls" = "yes yes"; then fi +# Conditionalize the sfp-machine.h header for this target machine. +if test -z "${sfp_machine_header}"; then + sfp_machine_header=$cpu_type/sfp-machine.h + if test -f ${srcdir}/config/${sfp_machine_header}; then + : + else + sfp_machine_header=no-sfp-machine.h + fi +fi + + # Conditionalize the makefile for this target machine. tmake_file_= for f in ${tmake_file} @@ -4630,6 +4642,8 @@ ac_config_links="$ac_config_links unwind.h:$unwind_header" ac_config_links="$ac_config_links md-unwind-support.h:config/$md_unwind_header" +ac_config_links="$ac_config_links sfp-machine.h:config/$sfp_machine_header" + # We need multilib support. ac_config_files="$ac_config_files Makefile" @@ -5358,6 +5372,7 @@ do "enable-execute-stack.c") CONFIG_LINKS="$CONFIG_LINKS enable-execute-stack.c:$enable_execute_stack" ;; "unwind.h") CONFIG_LINKS="$CONFIG_LINKS unwind.h:$unwind_header" ;; "md-unwind-support.h") CONFIG_LINKS="$CONFIG_LINKS md-unwind-support.h:config/$md_unwind_header" ;; + "sfp-machine.h") CONFIG_LINKS="$CONFIG_LINKS sfp-machine.h:config/$sfp_machine_header" ;; "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; "default") CONFIG_COMMANDS="$CONFIG_COMMANDS default" ;; diff --git a/libgcc/configure.ac b/libgcc/configure.ac index 8e2d1accd9d..c1a3dce0f5b 100644 --- a/libgcc/configure.ac +++ b/libgcc/configure.ac @@ -273,6 +273,17 @@ if test "$enable_tls $gcc_cv_use_emutls" = "yes yes"; then fi AC_SUBST(set_use_emutls) +# Conditionalize the sfp-machine.h header for this target machine. +if test -z "${sfp_machine_header}"; then + sfp_machine_header=$cpu_type/sfp-machine.h + if test -f ${srcdir}/config/${sfp_machine_header}; then + : + else + sfp_machine_header=no-sfp-machine.h + fi +fi +AC_SUBST(sfp_machine_header) + # Conditionalize the makefile for this target machine. tmake_file_= for f in ${tmake_file} @@ -292,6 +303,7 @@ AC_SUBST(asm_hidden_op) AC_CONFIG_LINKS([enable-execute-stack.c:$enable_execute_stack]) AC_CONFIG_LINKS([unwind.h:$unwind_header]) AC_CONFIG_LINKS([md-unwind-support.h:config/$md_unwind_header]) +AC_CONFIG_LINKS([sfp-machine.h:config/$sfp_machine_header]) # We need multilib support. AC_CONFIG_FILES([Makefile]) diff --git a/libgcc/soft-fp/README b/libgcc/soft-fp/README new file mode 100644 index 00000000000..361386de771 --- /dev/null +++ b/libgcc/soft-fp/README @@ -0,0 +1,5 @@ +Except for conversions involving TImode and conversions involving +XFmode, the files in this directory are part of the GNU C Library, not part +of GCC. As described at <http://gcc.gnu.org/codingconventions.html>, changes +should be made to the GNU C Library and the changed files then imported +into GCC. diff --git a/libgcc/soft-fp/adddf3.c b/libgcc/soft-fp/adddf3.c new file mode 100644 index 00000000000..24c03db0a64 --- /dev/null +++ b/libgcc/soft-fp/adddf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a + b + Copyright (C) 1997,1999, 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __adddf3(DFtype a, DFtype b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); + DFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_D(A, a); + FP_UNPACK_SEMIRAW_D(B, b); + FP_ADD_D(R, A, B); + FP_PACK_SEMIRAW_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/addsf3.c b/libgcc/soft-fp/addsf3.c new file mode 100644 index 00000000000..b86991ee562 --- /dev/null +++ b/libgcc/soft-fp/addsf3.c @@ -0,0 +1,50 @@ +/* Software floating-point emulation. + Return a + b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __addsf3(SFtype a, SFtype b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R); + SFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_S(A, a); + FP_UNPACK_SEMIRAW_S(B, b); + FP_ADD_S(R, A, B); + FP_PACK_SEMIRAW_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} + diff --git a/libgcc/soft-fp/addtf3.c b/libgcc/soft-fp/addtf3.c new file mode 100644 index 00000000000..49b67f0ba96 --- /dev/null +++ b/libgcc/soft-fp/addtf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a + b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __addtf3(TFtype a, TFtype b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(R); + TFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_Q(A, a); + FP_UNPACK_SEMIRAW_Q(B, b); + FP_ADD_Q(R, A, B); + FP_PACK_SEMIRAW_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/divdf3.c b/libgcc/soft-fp/divdf3.c new file mode 100644 index 00000000000..c3bb0d247cb --- /dev/null +++ b/libgcc/soft-fp/divdf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a / b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __divdf3(DFtype a, DFtype b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); + DFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); + FP_UNPACK_D(B, b); + FP_DIV_D(R, A, B); + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/divsf3.c b/libgcc/soft-fp/divsf3.c new file mode 100644 index 00000000000..176bb3c2cb3 --- /dev/null +++ b/libgcc/soft-fp/divsf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a / b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __divsf3(SFtype a, SFtype b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R); + SFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); + FP_UNPACK_S(B, b); + FP_DIV_S(R, A, B); + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/divtf3.c b/libgcc/soft-fp/divtf3.c new file mode 100644 index 00000000000..916fbfe9748 --- /dev/null +++ b/libgcc/soft-fp/divtf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a / b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __divtf3(TFtype a, TFtype b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(R); + TFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_DIV_Q(R, A, B); + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/double.h b/libgcc/soft-fp/double.h new file mode 100644 index 00000000000..1cde3308bac --- /dev/null +++ b/libgcc/soft-fp/double.h @@ -0,0 +1,265 @@ +/* Software floating-point emulation. + Definitions for IEEE Double Precision + Copyright (C) 1997, 1998, 1999, 2006, 2007, 2008, 2009 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#if _FP_W_TYPE_SIZE < 32 +#error "Here's a nickel kid. Go buy yourself a real computer." +#endif + +#if _FP_W_TYPE_SIZE < 64 +#define _FP_FRACTBITS_D (2 * _FP_W_TYPE_SIZE) +#else +#define _FP_FRACTBITS_D _FP_W_TYPE_SIZE +#endif + +#define _FP_FRACBITS_D 53 +#define _FP_FRACXBITS_D (_FP_FRACTBITS_D - _FP_FRACBITS_D) +#define _FP_WFRACBITS_D (_FP_WORKBITS + _FP_FRACBITS_D) +#define _FP_WFRACXBITS_D (_FP_FRACTBITS_D - _FP_WFRACBITS_D) +#define _FP_EXPBITS_D 11 +#define _FP_EXPBIAS_D 1023 +#define _FP_EXPMAX_D 2047 + +#define _FP_QNANBIT_D \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-2) % _FP_W_TYPE_SIZE) +#define _FP_QNANBIT_SH_D \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_D \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-1) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_SH_D \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE) +#define _FP_OVERFLOW_D \ + ((_FP_W_TYPE)1 << _FP_WFRACBITS_D % _FP_W_TYPE_SIZE) + +typedef float DFtype __attribute__((mode(DF))); + +#if _FP_W_TYPE_SIZE < 64 + +union _FP_UNION_D +{ + DFtype flt; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_D; + unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE; + unsigned frac0 : _FP_W_TYPE_SIZE; +#else + unsigned frac0 : _FP_W_TYPE_SIZE; + unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE; + unsigned exp : _FP_EXPBITS_D; + unsigned sign : 1; +#endif + } bits __attribute__((packed)); +}; + +#define FP_DECL_D(X) _FP_DECL(2,X) +#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_2(D,X,val) +#define FP_UNPACK_RAW_DP(X,val) _FP_UNPACK_RAW_2_P(D,X,val) +#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_2(D,val,X) +#define FP_PACK_RAW_DP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(D,val,X); \ + } while (0) + +#define FP_UNPACK_D(X,val) \ + do { \ + _FP_UNPACK_RAW_2(D,X,val); \ + _FP_UNPACK_CANONICAL(D,2,X); \ + } while (0) + +#define FP_UNPACK_DP(X,val) \ + do { \ + _FP_UNPACK_RAW_2_P(D,X,val); \ + _FP_UNPACK_CANONICAL(D,2,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_D(X,val) \ + do { \ + _FP_UNPACK_RAW_2(D,X,val); \ + _FP_UNPACK_SEMIRAW(D,2,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_DP(X,val) \ + do { \ + _FP_UNPACK_RAW_2_P(D,X,val); \ + _FP_UNPACK_SEMIRAW(D,2,X); \ + } while (0) + +#define FP_PACK_D(val,X) \ + do { \ + _FP_PACK_CANONICAL(D,2,X); \ + _FP_PACK_RAW_2(D,val,X); \ + } while (0) + +#define FP_PACK_DP(val,X) \ + do { \ + _FP_PACK_CANONICAL(D,2,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(D,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_D(val,X) \ + do { \ + _FP_PACK_SEMIRAW(D,2,X); \ + _FP_PACK_RAW_2(D,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_DP(val,X) \ + do { \ + _FP_PACK_SEMIRAW(D,2,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(D,val,X); \ + } while (0) + +#define FP_ISSIGNAN_D(X) _FP_ISSIGNAN(D,2,X) +#define FP_NEG_D(R,X) _FP_NEG(D,2,R,X) +#define FP_ADD_D(R,X,Y) _FP_ADD(D,2,R,X,Y) +#define FP_SUB_D(R,X,Y) _FP_SUB(D,2,R,X,Y) +#define FP_MUL_D(R,X,Y) _FP_MUL(D,2,R,X,Y) +#define FP_DIV_D(R,X,Y) _FP_DIV(D,2,R,X,Y) +#define FP_SQRT_D(R,X) _FP_SQRT(D,2,R,X) +#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q) + +#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,2,r,X,Y,un) +#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,2,r,X,Y) +#define FP_CMP_UNORD_D(r,X,Y) _FP_CMP_UNORD(D,2,r,X,Y) + +#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,2,r,X,rsz,rsg) +#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,2,X,r,rs,rt) + +#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_2(X) +#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_2(X) + +#else + +union _FP_UNION_D +{ + DFtype flt; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_D; + _FP_W_TYPE frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0); +#else + _FP_W_TYPE frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0); + unsigned exp : _FP_EXPBITS_D; + unsigned sign : 1; +#endif + } bits __attribute__((packed)); +}; + +#define FP_DECL_D(X) _FP_DECL(1,X) +#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_1(D,X,val) +#define FP_UNPACK_RAW_DP(X,val) _FP_UNPACK_RAW_1_P(D,X,val) +#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_1(D,val,X) +#define FP_PACK_RAW_DP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(D,val,X); \ + } while (0) + +#define FP_UNPACK_D(X,val) \ + do { \ + _FP_UNPACK_RAW_1(D,X,val); \ + _FP_UNPACK_CANONICAL(D,1,X); \ + } while (0) + +#define FP_UNPACK_DP(X,val) \ + do { \ + _FP_UNPACK_RAW_1_P(D,X,val); \ + _FP_UNPACK_CANONICAL(D,1,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_D(X,val) \ + do { \ + _FP_UNPACK_RAW_1(D,X,val); \ + _FP_UNPACK_SEMIRAW(D,1,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_DP(X,val) \ + do { \ + _FP_UNPACK_RAW_1_P(D,X,val); \ + _FP_UNPACK_SEMIRAW(D,1,X); \ + } while (0) + +#define FP_PACK_D(val,X) \ + do { \ + _FP_PACK_CANONICAL(D,1,X); \ + _FP_PACK_RAW_1(D,val,X); \ + } while (0) + +#define FP_PACK_DP(val,X) \ + do { \ + _FP_PACK_CANONICAL(D,1,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(D,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_D(val,X) \ + do { \ + _FP_PACK_SEMIRAW(D,1,X); \ + _FP_PACK_RAW_1(D,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_DP(val,X) \ + do { \ + _FP_PACK_SEMIRAW(D,1,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(D,val,X); \ + } while (0) + +#define FP_ISSIGNAN_D(X) _FP_ISSIGNAN(D,1,X) +#define FP_NEG_D(R,X) _FP_NEG(D,1,R,X) +#define FP_ADD_D(R,X,Y) _FP_ADD(D,1,R,X,Y) +#define FP_SUB_D(R,X,Y) _FP_SUB(D,1,R,X,Y) +#define FP_MUL_D(R,X,Y) _FP_MUL(D,1,R,X,Y) +#define FP_DIV_D(R,X,Y) _FP_DIV(D,1,R,X,Y) +#define FP_SQRT_D(R,X) _FP_SQRT(D,1,R,X) +#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q) + +/* The implementation of _FP_MUL_D and _FP_DIV_D should be chosen by + the target machine. */ + +#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,1,r,X,Y,un) +#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,1,r,X,Y) +#define FP_CMP_UNORD_D(r,X,Y) _FP_CMP_UNORD(D,1,r,X,Y) + +#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,1,r,X,rsz,rsg) +#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,1,X,r,rs,rt) + +#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_1(X) +#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_1(X) + +#endif /* W_TYPE_SIZE < 64 */ diff --git a/libgcc/soft-fp/eqdf2.c b/libgcc/soft-fp/eqdf2.c new file mode 100644 index 00000000000..82a885834c0 --- /dev/null +++ b/libgcc/soft-fp/eqdf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 otherwise + Copyright (C) 1997,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +CMPtype __eqdf2(DFtype a, DFtype b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); + CMPtype r; + + FP_UNPACK_RAW_D(A, a); + FP_UNPACK_RAW_D(B, b); + FP_CMP_EQ_D(r, A, B); + if (r && (FP_ISSIGNAN_D(A) || FP_ISSIGNAN_D(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__eqdf2, __nedf2); diff --git a/libgcc/soft-fp/eqsf2.c b/libgcc/soft-fp/eqsf2.c new file mode 100644 index 00000000000..0a1180f876f --- /dev/null +++ b/libgcc/soft-fp/eqsf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 otherwise + Copyright (C) 1997,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +CMPtype __eqsf2(SFtype a, SFtype b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); + CMPtype r; + + FP_UNPACK_RAW_S(A, a); + FP_UNPACK_RAW_S(B, b); + FP_CMP_EQ_S(r, A, B); + if (r && (FP_ISSIGNAN_S(A) || FP_ISSIGNAN_S(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__eqsf2, __nesf2); diff --git a/libgcc/soft-fp/eqtf2.c b/libgcc/soft-fp/eqtf2.c new file mode 100644 index 00000000000..46240b73559 --- /dev/null +++ b/libgcc/soft-fp/eqtf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 otherwise + Copyright (C) 1997,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +CMPtype __eqtf2(TFtype a, TFtype b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + CMPtype r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_EQ_Q(r, A, B); + if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__eqtf2, __netf2); diff --git a/libgcc/soft-fp/extenddftf2.c b/libgcc/soft-fp/extenddftf2.c new file mode 100644 index 00000000000..4101639a947 --- /dev/null +++ b/libgcc/soft-fp/extenddftf2.c @@ -0,0 +1,54 @@ +/* Software floating-point emulation. + Return a converted to IEEE quad + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +TFtype __extenddftf2(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_Q(R); + TFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_D(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_EXTEND(Q,D,4,2,R,A); +#else + FP_EXTEND(Q,D,2,1,R,A); +#endif + FP_PACK_RAW_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/extended.h b/libgcc/soft-fp/extended.h new file mode 100644 index 00000000000..e5f16debecb --- /dev/null +++ b/libgcc/soft-fp/extended.h @@ -0,0 +1,431 @@ +/* Software floating-point emulation. + Definitions for IEEE Extended Precision. + Copyright (C) 1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#if _FP_W_TYPE_SIZE < 32 +#error "Here's a nickel, kid. Go buy yourself a real computer." +#endif + +#if _FP_W_TYPE_SIZE < 64 +#define _FP_FRACTBITS_E (4*_FP_W_TYPE_SIZE) +#else +#define _FP_FRACTBITS_E (2*_FP_W_TYPE_SIZE) +#endif + +#define _FP_FRACBITS_E 64 +#define _FP_FRACXBITS_E (_FP_FRACTBITS_E - _FP_FRACBITS_E) +#define _FP_WFRACBITS_E (_FP_WORKBITS + _FP_FRACBITS_E) +#define _FP_WFRACXBITS_E (_FP_FRACTBITS_E - _FP_WFRACBITS_E) +#define _FP_EXPBITS_E 15 +#define _FP_EXPBIAS_E 16383 +#define _FP_EXPMAX_E 32767 + +#define _FP_QNANBIT_E \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-2) % _FP_W_TYPE_SIZE) +#define _FP_QNANBIT_SH_E \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_E \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-1) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_SH_E \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE) +#define _FP_OVERFLOW_E \ + ((_FP_W_TYPE)1 << (_FP_WFRACBITS_E % _FP_W_TYPE_SIZE)) + +typedef float XFtype __attribute__((mode(XF))); + +#if _FP_W_TYPE_SIZE < 64 + +union _FP_UNION_E +{ + XFtype flt; + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned long pad1 : _FP_W_TYPE_SIZE; + unsigned long pad2 : (_FP_W_TYPE_SIZE - 1 - _FP_EXPBITS_E); + unsigned long sign : 1; + unsigned long exp : _FP_EXPBITS_E; + unsigned long frac1 : _FP_W_TYPE_SIZE; + unsigned long frac0 : _FP_W_TYPE_SIZE; +#else + unsigned long frac0 : _FP_W_TYPE_SIZE; + unsigned long frac1 : _FP_W_TYPE_SIZE; + unsigned exp : _FP_EXPBITS_E; + unsigned sign : 1; +#endif /* not bigendian */ + } bits __attribute__((packed)); +}; + + +#define FP_DECL_E(X) _FP_DECL(4,X) + +#define FP_UNPACK_RAW_E(X, val) \ + do { \ + union _FP_UNION_E _flo; _flo.flt = (val); \ + \ + X##_f[2] = 0; X##_f[3] = 0; \ + X##_f[0] = _flo.bits.frac0; \ + X##_f[1] = _flo.bits.frac1; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#define FP_UNPACK_RAW_EP(X, val) \ + do { \ + union _FP_UNION_E *_flo = \ + (union _FP_UNION_E *)(val); \ + \ + X##_f[2] = 0; X##_f[3] = 0; \ + X##_f[0] = _flo->bits.frac0; \ + X##_f[1] = _flo->bits.frac1; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + } while (0) + +#define FP_PACK_RAW_E(val, X) \ + do { \ + union _FP_UNION_E _flo; \ + \ + if (X##_e) X##_f[1] |= _FP_IMPLBIT_E; \ + else X##_f[1] &= ~(_FP_IMPLBIT_E); \ + _flo.bits.frac0 = X##_f[0]; \ + _flo.bits.frac1 = X##_f[1]; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + \ + (val) = _flo.flt; \ + } while (0) + +#define FP_PACK_RAW_EP(val, X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + { \ + union _FP_UNION_E *_flo = \ + (union _FP_UNION_E *)(val); \ + \ + if (X##_e) X##_f[1] |= _FP_IMPLBIT_E; \ + else X##_f[1] &= ~(_FP_IMPLBIT_E); \ + _flo->bits.frac0 = X##_f[0]; \ + _flo->bits.frac1 = X##_f[1]; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } \ + } while (0) + +#define FP_UNPACK_E(X,val) \ + do { \ + FP_UNPACK_RAW_E(X,val); \ + _FP_UNPACK_CANONICAL(E,4,X); \ + } while (0) + +#define FP_UNPACK_EP(X,val) \ + do { \ + FP_UNPACK_RAW_EP(X,val); \ + _FP_UNPACK_CANONICAL(E,4,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_E(X,val) \ + do { \ + FP_UNPACK_RAW_E(X,val); \ + _FP_UNPACK_SEMIRAW(E,4,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_EP(X,val) \ + do { \ + FP_UNPACK_RAW_EP(X,val); \ + _FP_UNPACK_SEMIRAW(E,4,X); \ + } while (0) + +#define FP_PACK_E(val,X) \ + do { \ + _FP_PACK_CANONICAL(E,4,X); \ + FP_PACK_RAW_E(val,X); \ + } while (0) + +#define FP_PACK_EP(val,X) \ + do { \ + _FP_PACK_CANONICAL(E,4,X); \ + FP_PACK_RAW_EP(val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_E(val,X) \ + do { \ + _FP_PACK_SEMIRAW(E,4,X); \ + FP_PACK_RAW_E(val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_EP(val,X) \ + do { \ + _FP_PACK_SEMIRAW(E,4,X); \ + FP_PACK_RAW_EP(val,X); \ + } while (0) + +#define FP_ISSIGNAN_E(X) _FP_ISSIGNAN(E,4,X) +#define FP_NEG_E(R,X) _FP_NEG(E,4,R,X) +#define FP_ADD_E(R,X,Y) _FP_ADD(E,4,R,X,Y) +#define FP_SUB_E(R,X,Y) _FP_SUB(E,4,R,X,Y) +#define FP_MUL_E(R,X,Y) _FP_MUL(E,4,R,X,Y) +#define FP_DIV_E(R,X,Y) _FP_DIV(E,4,R,X,Y) +#define FP_SQRT_E(R,X) _FP_SQRT(E,4,R,X) + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + * This has special _E version because standard _4 square + * root would not work (it has to start normally with the + * second word and not the first), but as we have to do it + * anyway, we optimize it by doing most of the calculations + * in two UWtype registers instead of four. + */ + +#define _FP_SQRT_MEAT_E(R, S, T, X, q) \ + do { \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + _FP_FRAC_SRL_4(X, (_FP_WORKBITS)); \ + while (q) \ + { \ + T##_f[1] = S##_f[1] + q; \ + if (T##_f[1] <= X##_f[1]) \ + { \ + S##_f[1] = T##_f[1] + q; \ + X##_f[1] -= T##_f[1]; \ + R##_f[1] += q; \ + } \ + _FP_FRAC_SLL_2(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q) \ + { \ + T##_f[0] = S##_f[0] + q; \ + T##_f[1] = S##_f[1]; \ + if (T##_f[1] < X##_f[1] || \ + (T##_f[1] == X##_f[1] && \ + T##_f[0] <= X##_f[0])) \ + { \ + S##_f[0] = T##_f[0] + q; \ + S##_f[1] += (T##_f[0] > S##_f[0]); \ + _FP_FRAC_DEC_2(X, T); \ + R##_f[0] += q; \ + } \ + _FP_FRAC_SLL_2(X, 1); \ + q >>= 1; \ + } \ + _FP_FRAC_SLL_4(R, (_FP_WORKBITS)); \ + if (X##_f[0] | X##_f[1]) \ + { \ + if (S##_f[1] < X##_f[1] || \ + (S##_f[1] == X##_f[1] && \ + S##_f[0] < X##_f[0])) \ + R##_f[0] |= _FP_WORK_ROUND; \ + R##_f[0] |= _FP_WORK_STICKY; \ + } \ + } while (0) + +#define FP_CMP_E(r,X,Y,un) _FP_CMP(E,4,r,X,Y,un) +#define FP_CMP_EQ_E(r,X,Y) _FP_CMP_EQ(E,4,r,X,Y) +#define FP_CMP_UNORD_E(r,X,Y) _FP_CMP_UNORD(E,4,r,X,Y) + +#define FP_TO_INT_E(r,X,rsz,rsg) _FP_TO_INT(E,4,r,X,rsz,rsg) +#define FP_FROM_INT_E(X,r,rs,rt) _FP_FROM_INT(E,4,X,r,rs,rt) + +#define _FP_FRAC_HIGH_E(X) (X##_f[2]) +#define _FP_FRAC_HIGH_RAW_E(X) (X##_f[1]) + +#else /* not _FP_W_TYPE_SIZE < 64 */ +union _FP_UNION_E +{ + XFtype flt; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + _FP_W_TYPE pad : (_FP_W_TYPE_SIZE - 1 - _FP_EXPBITS_E); + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_E; + _FP_W_TYPE frac : _FP_W_TYPE_SIZE; +#else + _FP_W_TYPE frac : _FP_W_TYPE_SIZE; + unsigned exp : _FP_EXPBITS_E; + unsigned sign : 1; +#endif + } bits; +}; + +#define FP_DECL_E(X) _FP_DECL(2,X) + +#define FP_UNPACK_RAW_E(X, val) \ + do { \ + union _FP_UNION_E _flo; _flo.flt = (val); \ + \ + X##_f0 = _flo.bits.frac; \ + X##_f1 = 0; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#define FP_UNPACK_RAW_EP(X, val) \ + do { \ + union _FP_UNION_E *_flo = \ + (union _FP_UNION_E *)(val); \ + \ + X##_f0 = _flo->bits.frac; \ + X##_f1 = 0; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + } while (0) + +#define FP_PACK_RAW_E(val, X) \ + do { \ + union _FP_UNION_E _flo; \ + \ + if (X##_e) X##_f0 |= _FP_IMPLBIT_E; \ + else X##_f0 &= ~(_FP_IMPLBIT_E); \ + _flo.bits.frac = X##_f0; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + \ + (val) = _flo.flt; \ + } while (0) + +#define FP_PACK_RAW_EP(fs, val, X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + { \ + union _FP_UNION_E *_flo = \ + (union _FP_UNION_E *)(val); \ + \ + if (X##_e) X##_f0 |= _FP_IMPLBIT_E; \ + else X##_f0 &= ~(_FP_IMPLBIT_E); \ + _flo->bits.frac = X##_f0; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } \ + } while (0) + + +#define FP_UNPACK_E(X,val) \ + do { \ + FP_UNPACK_RAW_E(X,val); \ + _FP_UNPACK_CANONICAL(E,2,X); \ + } while (0) + +#define FP_UNPACK_EP(X,val) \ + do { \ + FP_UNPACK_RAW_EP(X,val); \ + _FP_UNPACK_CANONICAL(E,2,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_E(X,val) \ + do { \ + FP_UNPACK_RAW_E(X,val); \ + _FP_UNPACK_SEMIRAW(E,2,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_EP(X,val) \ + do { \ + FP_UNPACK_RAW_EP(X,val); \ + _FP_UNPACK_SEMIRAW(E,2,X); \ + } while (0) + +#define FP_PACK_E(val,X) \ + do { \ + _FP_PACK_CANONICAL(E,2,X); \ + FP_PACK_RAW_E(val,X); \ + } while (0) + +#define FP_PACK_EP(val,X) \ + do { \ + _FP_PACK_CANONICAL(E,2,X); \ + FP_PACK_RAW_EP(val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_E(val,X) \ + do { \ + _FP_PACK_SEMIRAW(E,2,X); \ + FP_PACK_RAW_E(val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_EP(val,X) \ + do { \ + _FP_PACK_SEMIRAW(E,2,X); \ + FP_PACK_RAW_EP(val,X); \ + } while (0) + +#define FP_ISSIGNAN_E(X) _FP_ISSIGNAN(E,2,X) +#define FP_NEG_E(R,X) _FP_NEG(E,2,R,X) +#define FP_ADD_E(R,X,Y) _FP_ADD(E,2,R,X,Y) +#define FP_SUB_E(R,X,Y) _FP_SUB(E,2,R,X,Y) +#define FP_MUL_E(R,X,Y) _FP_MUL(E,2,R,X,Y) +#define FP_DIV_E(R,X,Y) _FP_DIV(E,2,R,X,Y) +#define FP_SQRT_E(R,X) _FP_SQRT(E,2,R,X) + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + * We optimize it by doing most of the calculations + * in one UWtype registers instead of two, although we don't + * have to. + */ +#define _FP_SQRT_MEAT_E(R, S, T, X, q) \ + do { \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + _FP_FRAC_SRL_2(X, (_FP_WORKBITS)); \ + while (q) \ + { \ + T##_f0 = S##_f0 + q; \ + if (T##_f0 <= X##_f0) \ + { \ + S##_f0 = T##_f0 + q; \ + X##_f0 -= T##_f0; \ + R##_f0 += q; \ + } \ + _FP_FRAC_SLL_1(X, 1); \ + q >>= 1; \ + } \ + _FP_FRAC_SLL_2(R, (_FP_WORKBITS)); \ + if (X##_f0) \ + { \ + if (S##_f0 < X##_f0) \ + R##_f0 |= _FP_WORK_ROUND; \ + R##_f0 |= _FP_WORK_STICKY; \ + } \ + } while (0) + +#define FP_CMP_E(r,X,Y,un) _FP_CMP(E,2,r,X,Y,un) +#define FP_CMP_EQ_E(r,X,Y) _FP_CMP_EQ(E,2,r,X,Y) +#define FP_CMP_UNORD_E(r,X,Y) _FP_CMP_UNORD(E,2,r,X,Y) + +#define FP_TO_INT_E(r,X,rsz,rsg) _FP_TO_INT(E,2,r,X,rsz,rsg) +#define FP_FROM_INT_E(X,r,rs,rt) _FP_FROM_INT(E,2,X,r,rs,rt) + +#define _FP_FRAC_HIGH_E(X) (X##_f1) +#define _FP_FRAC_HIGH_RAW_E(X) (X##_f0) + +#endif /* not _FP_W_TYPE_SIZE < 64 */ diff --git a/libgcc/soft-fp/extendsfdf2.c b/libgcc/soft-fp/extendsfdf2.c new file mode 100644 index 00000000000..fba22d5a197 --- /dev/null +++ b/libgcc/soft-fp/extendsfdf2.c @@ -0,0 +1,54 @@ +/* Software floating-point emulation. + Return a converted to IEEE double + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "double.h" + +DFtype __extendsfdf2(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); + FP_DECL_D(R); + DFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_S(A, a); +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + FP_EXTEND(D,S,2,1,R,A); +#else + FP_EXTEND(D,S,1,1,R,A); +#endif + FP_PACK_RAW_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/extendsftf2.c b/libgcc/soft-fp/extendsftf2.c new file mode 100644 index 00000000000..c43cf1edee5 --- /dev/null +++ b/libgcc/soft-fp/extendsftf2.c @@ -0,0 +1,54 @@ +/* Software floating-point emulation. + Return a converted to IEEE quad + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "quad.h" + +TFtype __extendsftf2(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); + FP_DECL_Q(R); + TFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_S(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_EXTEND(Q,S,4,1,R,A); +#else + FP_EXTEND(Q,S,2,1,R,A); +#endif + FP_PACK_RAW_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/extendxftf2.c b/libgcc/soft-fp/extendxftf2.c new file mode 100644 index 00000000000..af29a2ae9cc --- /dev/null +++ b/libgcc/soft-fp/extendxftf2.c @@ -0,0 +1,53 @@ +/* Software floating-point emulation. + Return a converted to IEEE quad + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "extended.h" +#include "quad.h" + +TFtype __extendxftf2(XFtype a) +{ + FP_DECL_EX; + FP_DECL_E(A); + FP_DECL_Q(R); + TFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_E(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_EXTEND(Q,E,4,4,R,A); +#else + FP_EXTEND(Q,E,2,2,R,A); +#endif + FP_PACK_RAW_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixdfdi.c b/libgcc/soft-fp/fixdfdi.c new file mode 100644 index 00000000000..fdfe35af519 --- /dev/null +++ b/libgcc/soft-fp/fixdfdi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 64bit signed integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DItype __fixdfdi(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); + UDItype r; + + FP_UNPACK_RAW_D(A, a); + FP_TO_INT_D(r, A, DI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixdfsi.c b/libgcc/soft-fp/fixdfsi.c new file mode 100644 index 00000000000..a05f3e39a5f --- /dev/null +++ b/libgcc/soft-fp/fixdfsi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 32bit signed integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +SItype __fixdfsi(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); + USItype r; + + FP_UNPACK_RAW_D(A, a); + FP_TO_INT_D(r, A, SI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixdfti.c b/libgcc/soft-fp/fixdfti.c new file mode 100644 index 00000000000..473165725e1 --- /dev/null +++ b/libgcc/soft-fp/fixdfti.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert IEEE double to 128bit signed integer + Copyright (C) 2007, 2008 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +TItype __fixdfti(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); + UTItype r; + + FP_UNPACK_RAW_D(A, a); + FP_TO_INT_D(r, A, TI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixsfdi.c b/libgcc/soft-fp/fixsfdi.c new file mode 100644 index 00000000000..384d9bdd536 --- /dev/null +++ b/libgcc/soft-fp/fixsfdi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 64bit signed integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +DItype __fixsfdi(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); + UDItype r; + + FP_UNPACK_RAW_S(A, a); + FP_TO_INT_S(r, A, DI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixsfsi.c b/libgcc/soft-fp/fixsfsi.c new file mode 100644 index 00000000000..1d40ed05df7 --- /dev/null +++ b/libgcc/soft-fp/fixsfsi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 32bit signed integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SItype __fixsfsi(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); + USItype r; + + FP_UNPACK_RAW_S(A, a); + FP_TO_INT_S(r, A, SI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixsfti.c b/libgcc/soft-fp/fixsfti.c new file mode 100644 index 00000000000..779628eb403 --- /dev/null +++ b/libgcc/soft-fp/fixsfti.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert IEEE single to 128bit signed integer + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +TItype __fixsfti(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); + UTItype r; + + FP_UNPACK_RAW_S(A, a); + FP_TO_INT_S(r, A, TI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixtfdi.c b/libgcc/soft-fp/fixtfdi.c new file mode 100644 index 00000000000..ea10ce2dd3b --- /dev/null +++ b/libgcc/soft-fp/fixtfdi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 64bit signed integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +DItype __fixtfdi(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + UDItype r; + + FP_UNPACK_RAW_Q(A, a); + FP_TO_INT_Q(r, A, DI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixtfsi.c b/libgcc/soft-fp/fixtfsi.c new file mode 100644 index 00000000000..eb71038bc35 --- /dev/null +++ b/libgcc/soft-fp/fixtfsi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 32bit signed integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +SItype __fixtfsi(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + USItype r; + + FP_UNPACK_RAW_Q(A, a); + FP_TO_INT_Q(r, A, SI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixtfti.c b/libgcc/soft-fp/fixtfti.c new file mode 100644 index 00000000000..8311ea5a72c --- /dev/null +++ b/libgcc/soft-fp/fixtfti.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert IEEE quad to 128bit signed integer + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TItype __fixtfti(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + UTItype r; + + FP_UNPACK_RAW_Q(A, a); + FP_TO_INT_Q(r, A, TI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunsdfdi.c b/libgcc/soft-fp/fixunsdfdi.c new file mode 100644 index 00000000000..d85198f1853 --- /dev/null +++ b/libgcc/soft-fp/fixunsdfdi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 64bit unsigned integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +UDItype __fixunsdfdi(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); + UDItype r; + + FP_UNPACK_RAW_D(A, a); + FP_TO_INT_D(r, A, DI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunsdfsi.c b/libgcc/soft-fp/fixunsdfsi.c new file mode 100644 index 00000000000..492ffdea680 --- /dev/null +++ b/libgcc/soft-fp/fixunsdfsi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 32bit unsigned integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +USItype __fixunsdfsi(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); + USItype r; + + FP_UNPACK_RAW_D(A, a); + FP_TO_INT_D(r, A, SI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunsdfti.c b/libgcc/soft-fp/fixunsdfti.c new file mode 100644 index 00000000000..48c41d4ac99 --- /dev/null +++ b/libgcc/soft-fp/fixunsdfti.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert IEEE double to 128bit unsigned integer + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +UTItype __fixunsdfti(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); + UTItype r; + + FP_UNPACK_RAW_D(A, a); + FP_TO_INT_D(r, A, TI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunssfdi.c b/libgcc/soft-fp/fixunssfdi.c new file mode 100644 index 00000000000..54841538372 --- /dev/null +++ b/libgcc/soft-fp/fixunssfdi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 64bit unsigned integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +UDItype __fixunssfdi(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); + UDItype r; + + FP_UNPACK_RAW_S(A, a); + FP_TO_INT_S(r, A, DI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunssfsi.c b/libgcc/soft-fp/fixunssfsi.c new file mode 100644 index 00000000000..ac9d4b9654f --- /dev/null +++ b/libgcc/soft-fp/fixunssfsi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 32bit unsigned integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +USItype __fixunssfsi(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); + USItype r; + + FP_UNPACK_RAW_S(A, a); + FP_TO_INT_S(r, A, SI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunssfti.c b/libgcc/soft-fp/fixunssfti.c new file mode 100644 index 00000000000..89bcedbadc3 --- /dev/null +++ b/libgcc/soft-fp/fixunssfti.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert IEEE single to 128bit unsigned integer + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +UTItype __fixunssfti(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); + UTItype r; + + FP_UNPACK_RAW_S(A, a); + FP_TO_INT_S(r, A, TI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunstfdi.c b/libgcc/soft-fp/fixunstfdi.c new file mode 100644 index 00000000000..86f1fc85629 --- /dev/null +++ b/libgcc/soft-fp/fixunstfdi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 64bit unsigned integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +UDItype __fixunstfdi(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + UDItype r; + + FP_UNPACK_RAW_Q(A, a); + FP_TO_INT_Q(r, A, DI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunstfsi.c b/libgcc/soft-fp/fixunstfsi.c new file mode 100644 index 00000000000..e0335da4790 --- /dev/null +++ b/libgcc/soft-fp/fixunstfsi.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a to 32bit unsigned integer + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +USItype __fixunstfsi(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + USItype r; + + FP_UNPACK_RAW_Q(A, a); + FP_TO_INT_Q(r, A, SI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/fixunstfti.c b/libgcc/soft-fp/fixunstfti.c new file mode 100644 index 00000000000..f62bd505c64 --- /dev/null +++ b/libgcc/soft-fp/fixunstfti.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert IEEE quad to 128bit unsigned integer + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +UTItype __fixunstfti(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + UTItype r; + + FP_UNPACK_RAW_Q(A, a); + FP_TO_INT_Q(r, A, TI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/floatdidf.c b/libgcc/soft-fp/floatdidf.c new file mode 100644 index 00000000000..21e9fb1899c --- /dev/null +++ b/libgcc/soft-fp/floatdidf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 64bit signed integer to IEEE double + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __floatdidf(DItype i) +{ + FP_DECL_EX; + FP_DECL_D(A); + DFtype a; + + FP_FROM_INT_D(A, i, DI_BITS, UDItype); + FP_PACK_RAW_D(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatdisf.c b/libgcc/soft-fp/floatdisf.c new file mode 100644 index 00000000000..ee57915c3b8 --- /dev/null +++ b/libgcc/soft-fp/floatdisf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 64bit signed integer to IEEE single + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __floatdisf(DItype i) +{ + FP_DECL_EX; + FP_DECL_S(A); + SFtype a; + + FP_FROM_INT_S(A, i, DI_BITS, UDItype); + FP_PACK_RAW_S(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatditf.c b/libgcc/soft-fp/floatditf.c new file mode 100644 index 00000000000..564800bc05a --- /dev/null +++ b/libgcc/soft-fp/floatditf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 64bit signed integer to IEEE quad + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __floatditf(DItype i) +{ + FP_DECL_EX; + FP_DECL_Q(A); + TFtype a; + + FP_FROM_INT_Q(A, i, DI_BITS, UDItype); + FP_PACK_RAW_Q(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatsidf.c b/libgcc/soft-fp/floatsidf.c new file mode 100644 index 00000000000..b6d5f8d1d2a --- /dev/null +++ b/libgcc/soft-fp/floatsidf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 32bit signed integer to IEEE double + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __floatsidf(SItype i) +{ + FP_DECL_EX; + FP_DECL_D(A); + DFtype a; + + FP_FROM_INT_D(A, i, SI_BITS, USItype); + FP_PACK_RAW_D(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatsisf.c b/libgcc/soft-fp/floatsisf.c new file mode 100644 index 00000000000..76217fe3478 --- /dev/null +++ b/libgcc/soft-fp/floatsisf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 32bit signed integer to IEEE single + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __floatsisf(SItype i) +{ + FP_DECL_EX; + FP_DECL_S(A); + SFtype a; + + FP_FROM_INT_S(A, i, SI_BITS, USItype); + FP_PACK_RAW_S(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatsitf.c b/libgcc/soft-fp/floatsitf.c new file mode 100644 index 00000000000..8c3d9cc6193 --- /dev/null +++ b/libgcc/soft-fp/floatsitf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 32bit signed integer to IEEE quad + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __floatsitf(SItype i) +{ + FP_DECL_EX; + FP_DECL_Q(A); + TFtype a; + + FP_FROM_INT_Q(A, i, SI_BITS, USItype); + FP_PACK_RAW_Q(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floattidf.c b/libgcc/soft-fp/floattidf.c new file mode 100644 index 00000000000..14b6ea36a7a --- /dev/null +++ b/libgcc/soft-fp/floattidf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 128bit signed integer to IEEE double + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __floattidf(TItype i) +{ + FP_DECL_EX; + FP_DECL_D(A); + DFtype a; + + FP_FROM_INT_D(A, i, TI_BITS, UTItype); + FP_PACK_RAW_D(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floattisf.c b/libgcc/soft-fp/floattisf.c new file mode 100644 index 00000000000..475cafa2770 --- /dev/null +++ b/libgcc/soft-fp/floattisf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 128bit signed integer to IEEE single + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __floattisf(TItype i) +{ + FP_DECL_EX; + FP_DECL_S(A); + SFtype a; + + FP_FROM_INT_S(A, i, TI_BITS, UTItype); + FP_PACK_RAW_S(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floattitf.c b/libgcc/soft-fp/floattitf.c new file mode 100644 index 00000000000..12bbb2772c2 --- /dev/null +++ b/libgcc/soft-fp/floattitf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 128bit signed integer to IEEE quad + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __floattitf(TItype i) +{ + FP_DECL_EX; + FP_DECL_Q(A); + TFtype a; + + FP_FROM_INT_Q(A, i, TI_BITS, UTItype); + FP_PACK_RAW_Q(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatundidf.c b/libgcc/soft-fp/floatundidf.c new file mode 100644 index 00000000000..af8e4a5aefe --- /dev/null +++ b/libgcc/soft-fp/floatundidf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 64bit unsigned integer to IEEE double + Copyright (C) 1997, 1999, 2006, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __floatundidf(UDItype i) +{ + FP_DECL_EX; + FP_DECL_D(A); + DFtype a; + + FP_FROM_INT_D(A, i, DI_BITS, UDItype); + FP_PACK_RAW_D(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatundisf.c b/libgcc/soft-fp/floatundisf.c new file mode 100644 index 00000000000..977f7dfc79f --- /dev/null +++ b/libgcc/soft-fp/floatundisf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 64bit unsigned integer to IEEE single + Copyright (C) 1997, 1999, 2006, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __floatundisf(UDItype i) +{ + FP_DECL_EX; + FP_DECL_S(A); + SFtype a; + + FP_FROM_INT_S(A, i, DI_BITS, UDItype); + FP_PACK_RAW_S(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatunditf.c b/libgcc/soft-fp/floatunditf.c new file mode 100644 index 00000000000..ab357f051c3 --- /dev/null +++ b/libgcc/soft-fp/floatunditf.c @@ -0,0 +1,47 @@ +/* Software floating-point emulation. + Convert a 64bit unsigned integer to IEEE quad + Copyright (C) 1997,1999, 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype +__floatunditf(UDItype i) +{ + FP_DECL_EX; + FP_DECL_Q(A); + TFtype a; + + FP_FROM_INT_Q(A, i, DI_BITS, UDItype); + FP_PACK_RAW_Q(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatunsidf.c b/libgcc/soft-fp/floatunsidf.c new file mode 100644 index 00000000000..12d0f25bf0f --- /dev/null +++ b/libgcc/soft-fp/floatunsidf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 32bit unsigned integer to IEEE double + Copyright (C) 1997, 1999, 2006, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __floatunsidf(USItype i) +{ + FP_DECL_EX; + FP_DECL_D(A); + DFtype a; + + FP_FROM_INT_D(A, i, SI_BITS, USItype); + FP_PACK_RAW_D(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatunsisf.c b/libgcc/soft-fp/floatunsisf.c new file mode 100644 index 00000000000..80c5d3d359f --- /dev/null +++ b/libgcc/soft-fp/floatunsisf.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + Convert a 32bit unsigned integer to IEEE single + Copyright (C) 1997, 1999, 2006, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __floatunsisf(USItype i) +{ + FP_DECL_EX; + FP_DECL_S(A); + SFtype a; + + FP_FROM_INT_S(A, i, SI_BITS, USItype); + FP_PACK_RAW_S(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatunsitf.c b/libgcc/soft-fp/floatunsitf.c new file mode 100644 index 00000000000..c993716e54a --- /dev/null +++ b/libgcc/soft-fp/floatunsitf.c @@ -0,0 +1,47 @@ +/* Software floating-point emulation. + Convert a 32bit unsigned integer to IEEE quad + Copyright (C) 1997,1999, 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype +__floatunsitf(USItype i) +{ + FP_DECL_EX; + FP_DECL_Q(A); + TFtype a; + + FP_FROM_INT_Q(A, i, SI_BITS, USItype); + FP_PACK_RAW_Q(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatuntidf.c b/libgcc/soft-fp/floatuntidf.c new file mode 100644 index 00000000000..db1fe1aacb6 --- /dev/null +++ b/libgcc/soft-fp/floatuntidf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 128bit unsigned integer to IEEE double + Copyright (C) 1997,1999, 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __floatuntidf(UTItype i) +{ + FP_DECL_EX; + FP_DECL_D(A); + DFtype a; + + FP_FROM_INT_D(A, i, TI_BITS, UTItype); + FP_PACK_RAW_D(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatuntisf.c b/libgcc/soft-fp/floatuntisf.c new file mode 100644 index 00000000000..73914878b2e --- /dev/null +++ b/libgcc/soft-fp/floatuntisf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 128bit unsigned integer to IEEE single + Copyright (C) 2007, 2008 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __floatuntisf(UTItype i) +{ + FP_DECL_EX; + FP_DECL_S(A); + SFtype a; + + FP_FROM_INT_S(A, i, TI_BITS, UTItype); + FP_PACK_RAW_S(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/floatuntitf.c b/libgcc/soft-fp/floatuntitf.c new file mode 100644 index 00000000000..8d669012644 --- /dev/null +++ b/libgcc/soft-fp/floatuntitf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 128bit unsigned integer to IEEE quad + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __floatuntitf(UTItype i) +{ + FP_DECL_EX; + FP_DECL_Q(A); + TFtype a; + + FP_FROM_INT_Q(A, i, TI_BITS, UTItype); + FP_PACK_RAW_Q(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/libgcc/soft-fp/gedf2.c b/libgcc/soft-fp/gedf2.c new file mode 100644 index 00000000000..17a0453adce --- /dev/null +++ b/libgcc/soft-fp/gedf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, -2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +CMPtype __gedf2(DFtype a, DFtype b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); + CMPtype r; + + FP_UNPACK_RAW_D(A, a); + FP_UNPACK_RAW_D(B, b); + FP_CMP_D(r, A, B, -2); + if (r == -2 && (FP_ISSIGNAN_D(A) || FP_ISSIGNAN_D(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__gedf2, __gtdf2); diff --git a/libgcc/soft-fp/gesf2.c b/libgcc/soft-fp/gesf2.c new file mode 100644 index 00000000000..609a61f31dd --- /dev/null +++ b/libgcc/soft-fp/gesf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, -2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +CMPtype __gesf2(SFtype a, SFtype b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); + CMPtype r; + + FP_UNPACK_RAW_S(A, a); + FP_UNPACK_RAW_S(B, b); + FP_CMP_S(r, A, B, -2); + if (r == -2 && (FP_ISSIGNAN_S(A) || FP_ISSIGNAN_S(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__gesf2, __gtsf2); diff --git a/libgcc/soft-fp/getf2.c b/libgcc/soft-fp/getf2.c new file mode 100644 index 00000000000..eb52d05a4c5 --- /dev/null +++ b/libgcc/soft-fp/getf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, -2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +CMPtype __getf2(TFtype a, TFtype b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + CMPtype r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, A, B, -2); + if (r == -2 && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__getf2, __gttf2); diff --git a/libgcc/soft-fp/ledf2.c b/libgcc/soft-fp/ledf2.c new file mode 100644 index 00000000000..b8ba4400d36 --- /dev/null +++ b/libgcc/soft-fp/ledf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, 2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +CMPtype __ledf2(DFtype a, DFtype b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); + CMPtype r; + + FP_UNPACK_RAW_D(A, a); + FP_UNPACK_RAW_D(B, b); + FP_CMP_D(r, A, B, 2); + if (r == 2 && (FP_ISSIGNAN_D(A) || FP_ISSIGNAN_D(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__ledf2, __ltdf2); diff --git a/libgcc/soft-fp/lesf2.c b/libgcc/soft-fp/lesf2.c new file mode 100644 index 00000000000..cb359c91036 --- /dev/null +++ b/libgcc/soft-fp/lesf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, 2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +CMPtype __lesf2(SFtype a, SFtype b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); + CMPtype r; + + FP_UNPACK_RAW_S(A, a); + FP_UNPACK_RAW_S(B, b); + FP_CMP_S(r, A, B, 2); + if (r == 2 && (FP_ISSIGNAN_S(A) || FP_ISSIGNAN_S(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__lesf2, __ltsf2); diff --git a/libgcc/soft-fp/letf2.c b/libgcc/soft-fp/letf2.c new file mode 100644 index 00000000000..01fd12b5721 --- /dev/null +++ b/libgcc/soft-fp/letf2.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, 2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +CMPtype __letf2(TFtype a, TFtype b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + CMPtype r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, A, B, 2); + if (r == 2 && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__letf2, __lttf2); diff --git a/libgcc/soft-fp/muldf3.c b/libgcc/soft-fp/muldf3.c new file mode 100644 index 00000000000..7eb2015ae56 --- /dev/null +++ b/libgcc/soft-fp/muldf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a * b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __muldf3(DFtype a, DFtype b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); + DFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); + FP_UNPACK_D(B, b); + FP_MUL_D(R, A, B); + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/mulsf3.c b/libgcc/soft-fp/mulsf3.c new file mode 100644 index 00000000000..5df44068720 --- /dev/null +++ b/libgcc/soft-fp/mulsf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a * b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __mulsf3(SFtype a, SFtype b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R); + SFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); + FP_UNPACK_S(B, b); + FP_MUL_S(R, A, B); + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/multf3.c b/libgcc/soft-fp/multf3.c new file mode 100644 index 00000000000..0abab6ddc3b --- /dev/null +++ b/libgcc/soft-fp/multf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a * b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __multf3(TFtype a, TFtype b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(R); + TFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_MUL_Q(R, A, B); + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/negdf2.c b/libgcc/soft-fp/negdf2.c new file mode 100644 index 00000000000..54869e9a68d --- /dev/null +++ b/libgcc/soft-fp/negdf2.c @@ -0,0 +1,48 @@ +/* Software floating-point emulation. + Return -a + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __negdf2(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(R); + DFtype r; + + FP_UNPACK_D(A, a); + FP_NEG_D(R, A); + FP_PACK_D(r, R); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/negsf2.c b/libgcc/soft-fp/negsf2.c new file mode 100644 index 00000000000..bf5db7a452c --- /dev/null +++ b/libgcc/soft-fp/negsf2.c @@ -0,0 +1,48 @@ +/* Software floating-point emulation. + Return -a + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __negsf2(SFtype a) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(R); + SFtype r; + + FP_UNPACK_S(A, a); + FP_NEG_S(R, A); + FP_PACK_S(r, R); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/negtf2.c b/libgcc/soft-fp/negtf2.c new file mode 100644 index 00000000000..5524c82df1c --- /dev/null +++ b/libgcc/soft-fp/negtf2.c @@ -0,0 +1,48 @@ +/* Software floating-point emulation. + Return -a + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __negtf2(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(R); + TFtype r; + + FP_UNPACK_Q(A, a); + FP_NEG_Q(R, A); + FP_PACK_Q(r, R); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/op-1.h b/libgcc/soft-fp/op-1.h new file mode 100644 index 00000000000..35cd0ba7bb1 --- /dev/null +++ b/libgcc/soft-fp/op-1.h @@ -0,0 +1,302 @@ +/* Software floating-point emulation. + Basic one-word fraction declaration and manipulation. + Copyright (C) 1997,1998,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#define _FP_FRAC_DECL_1(X) _FP_W_TYPE X##_f +#define _FP_FRAC_COPY_1(D,S) (D##_f = S##_f) +#define _FP_FRAC_SET_1(X,I) (X##_f = I) +#define _FP_FRAC_HIGH_1(X) (X##_f) +#define _FP_FRAC_LOW_1(X) (X##_f) +#define _FP_FRAC_WORD_1(X,w) (X##_f) + +#define _FP_FRAC_ADDI_1(X,I) (X##_f += I) +#define _FP_FRAC_SLL_1(X,N) \ + do { \ + if (__builtin_constant_p(N) && (N) == 1) \ + X##_f += X##_f; \ + else \ + X##_f <<= (N); \ + } while (0) +#define _FP_FRAC_SRL_1(X,N) (X##_f >>= N) + +/* Right shift with sticky-lsb. */ +#define _FP_FRAC_SRST_1(X,S,N,sz) __FP_FRAC_SRST_1(X##_f, S, N, sz) +#define _FP_FRAC_SRS_1(X,N,sz) __FP_FRAC_SRS_1(X##_f, N, sz) + +#define __FP_FRAC_SRST_1(X,S,N,sz) \ +do { \ + S = (__builtin_constant_p(N) && (N) == 1 \ + ? X & 1 : (X << (_FP_W_TYPE_SIZE - (N))) != 0); \ + X = X >> (N); \ +} while (0) + +#define __FP_FRAC_SRS_1(X,N,sz) \ + (X = (X >> (N) | (__builtin_constant_p(N) && (N) == 1 \ + ? X & 1 : (X << (_FP_W_TYPE_SIZE - (N))) != 0))) + +#define _FP_FRAC_ADD_1(R,X,Y) (R##_f = X##_f + Y##_f) +#define _FP_FRAC_SUB_1(R,X,Y) (R##_f = X##_f - Y##_f) +#define _FP_FRAC_DEC_1(X,Y) (X##_f -= Y##_f) +#define _FP_FRAC_CLZ_1(z, X) __FP_CLZ(z, X##_f) + +/* Predicates */ +#define _FP_FRAC_NEGP_1(X) ((_FP_WS_TYPE)X##_f < 0) +#define _FP_FRAC_ZEROP_1(X) (X##_f == 0) +#define _FP_FRAC_OVERP_1(fs,X) (X##_f & _FP_OVERFLOW_##fs) +#define _FP_FRAC_CLEAR_OVERP_1(fs,X) (X##_f &= ~_FP_OVERFLOW_##fs) +#define _FP_FRAC_EQ_1(X, Y) (X##_f == Y##_f) +#define _FP_FRAC_GE_1(X, Y) (X##_f >= Y##_f) +#define _FP_FRAC_GT_1(X, Y) (X##_f > Y##_f) + +#define _FP_ZEROFRAC_1 0 +#define _FP_MINFRAC_1 1 +#define _FP_MAXFRAC_1 (~(_FP_WS_TYPE)0) + +/* + * Unpack the raw bits of a native fp value. Do not classify or + * normalize the data. + */ + +#define _FP_UNPACK_RAW_1(fs, X, val) \ + do { \ + union _FP_UNION_##fs _flo; _flo.flt = (val); \ + \ + X##_f = _flo.bits.frac; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#define _FP_UNPACK_RAW_1_P(fs, X, val) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + X##_f = _flo->bits.frac; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + } while (0) + +/* + * Repack the raw bits of a native fp value. + */ + +#define _FP_PACK_RAW_1(fs, val, X) \ + do { \ + union _FP_UNION_##fs _flo; \ + \ + _flo.bits.frac = X##_f; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + \ + (val) = _flo.flt; \ + } while (0) + +#define _FP_PACK_RAW_1_P(fs, val, X) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + _flo->bits.frac = X##_f; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } while (0) + + +/* + * Multiplication algorithms: + */ + +/* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the + multiplication immediately. */ + +#define _FP_MUL_MEAT_1_imm(wfracbits, R, X, Y) \ + do { \ + R##_f = X##_f * Y##_f; \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_1(R, wfracbits-1, 2*wfracbits); \ + } while (0) + +/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ + +#define _FP_MUL_MEAT_1_wide(wfracbits, R, X, Y, doit) \ + do { \ + _FP_W_TYPE _Z_f0, _Z_f1; \ + doit(_Z_f1, _Z_f0, X##_f, Y##_f); \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_2(_Z, wfracbits-1, 2*wfracbits); \ + R##_f = _Z_f0; \ + } while (0) + +/* Finally, a simple widening multiply algorithm. What fun! */ + +#define _FP_MUL_MEAT_1_hard(wfracbits, R, X, Y) \ + do { \ + _FP_W_TYPE _xh, _xl, _yh, _yl, _z_f0, _z_f1, _a_f0, _a_f1; \ + \ + /* split the words in half */ \ + _xh = X##_f >> (_FP_W_TYPE_SIZE/2); \ + _xl = X##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \ + _yh = Y##_f >> (_FP_W_TYPE_SIZE/2); \ + _yl = Y##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \ + \ + /* multiply the pieces */ \ + _z_f0 = _xl * _yl; \ + _a_f0 = _xh * _yl; \ + _a_f1 = _xl * _yh; \ + _z_f1 = _xh * _yh; \ + \ + /* reassemble into two full words */ \ + if ((_a_f0 += _a_f1) < _a_f1) \ + _z_f1 += (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2); \ + _a_f1 = _a_f0 >> (_FP_W_TYPE_SIZE/2); \ + _a_f0 = _a_f0 << (_FP_W_TYPE_SIZE/2); \ + _FP_FRAC_ADD_2(_z, _z, _a); \ + \ + /* normalize */ \ + _FP_FRAC_SRS_2(_z, wfracbits - 1, 2*wfracbits); \ + R##_f = _z_f0; \ + } while (0) + + +/* + * Division algorithms: + */ + +/* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the + division immediately. Give this macro either _FP_DIV_HELP_imm for + C primitives or _FP_DIV_HELP_ldiv for the ISO function. Which you + choose will depend on what the compiler does with divrem4. */ + +#define _FP_DIV_MEAT_1_imm(fs, R, X, Y, doit) \ + do { \ + _FP_W_TYPE _q, _r; \ + X##_f <<= (X##_f < Y##_f \ + ? R##_e--, _FP_WFRACBITS_##fs \ + : _FP_WFRACBITS_##fs - 1); \ + doit(_q, _r, X##_f, Y##_f); \ + R##_f = _q | (_r != 0); \ + } while (0) + +/* GCC's longlong.h defines a 2W / 1W => (1W,1W) primitive udiv_qrnnd + that may be useful in this situation. This first is for a primitive + that requires normalization, the second for one that does not. Look + for UDIV_NEEDS_NORMALIZATION to tell which your machine needs. */ + +#define _FP_DIV_MEAT_1_udiv_norm(fs, R, X, Y) \ + do { \ + _FP_W_TYPE _nh, _nl, _q, _r, _y; \ + \ + /* Normalize Y -- i.e. make the most significant bit set. */ \ + _y = Y##_f << _FP_WFRACXBITS_##fs; \ + \ + /* Shift X op correspondingly high, that is, up one full word. */ \ + if (X##_f < Y##_f) \ + { \ + R##_e--; \ + _nl = 0; \ + _nh = X##_f; \ + } \ + else \ + { \ + _nl = X##_f << (_FP_W_TYPE_SIZE - 1); \ + _nh = X##_f >> 1; \ + } \ + \ + udiv_qrnnd(_q, _r, _nh, _nl, _y); \ + R##_f = _q | (_r != 0); \ + } while (0) + +#define _FP_DIV_MEAT_1_udiv(fs, R, X, Y) \ + do { \ + _FP_W_TYPE _nh, _nl, _q, _r; \ + if (X##_f < Y##_f) \ + { \ + R##_e--; \ + _nl = X##_f << _FP_WFRACBITS_##fs; \ + _nh = X##_f >> _FP_WFRACXBITS_##fs; \ + } \ + else \ + { \ + _nl = X##_f << (_FP_WFRACBITS_##fs - 1); \ + _nh = X##_f >> (_FP_WFRACXBITS_##fs + 1); \ + } \ + udiv_qrnnd(_q, _r, _nh, _nl, Y##_f); \ + R##_f = _q | (_r != 0); \ + } while (0) + + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + */ + +#define _FP_SQRT_MEAT_1(R, S, T, X, q) \ + do { \ + while (q != _FP_WORK_ROUND) \ + { \ + T##_f = S##_f + q; \ + if (T##_f <= X##_f) \ + { \ + S##_f = T##_f + q; \ + X##_f -= T##_f; \ + R##_f += q; \ + } \ + _FP_FRAC_SLL_1(X, 1); \ + q >>= 1; \ + } \ + if (X##_f) \ + { \ + if (S##_f < X##_f) \ + R##_f |= _FP_WORK_ROUND; \ + R##_f |= _FP_WORK_STICKY; \ + } \ + } while (0) + +/* + * Assembly/disassembly for converting to/from integral types. + * No shifting or overflow handled here. + */ + +#define _FP_FRAC_ASSEMBLE_1(r, X, rsize) (r = X##_f) +#define _FP_FRAC_DISASSEMBLE_1(X, r, rsize) (X##_f = r) + + +/* + * Convert FP values between word sizes + */ + +#define _FP_FRAC_COPY_1_1(D, S) (D##_f = S##_f) diff --git a/libgcc/soft-fp/op-2.h b/libgcc/soft-fp/op-2.h new file mode 100644 index 00000000000..3a3b3aa0691 --- /dev/null +++ b/libgcc/soft-fp/op-2.h @@ -0,0 +1,617 @@ +/* Software floating-point emulation. + Basic two-word fraction declaration and manipulation. + Copyright (C) 1997,1998,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#define _FP_FRAC_DECL_2(X) _FP_W_TYPE X##_f0, X##_f1 +#define _FP_FRAC_COPY_2(D,S) (D##_f0 = S##_f0, D##_f1 = S##_f1) +#define _FP_FRAC_SET_2(X,I) __FP_FRAC_SET_2(X, I) +#define _FP_FRAC_HIGH_2(X) (X##_f1) +#define _FP_FRAC_LOW_2(X) (X##_f0) +#define _FP_FRAC_WORD_2(X,w) (X##_f##w) + +#define _FP_FRAC_SLL_2(X,N) \ +(void)(((N) < _FP_W_TYPE_SIZE) \ + ? ({ \ + if (__builtin_constant_p(N) && (N) == 1) \ + { \ + X##_f1 = X##_f1 + X##_f1 + (((_FP_WS_TYPE)(X##_f0)) < 0); \ + X##_f0 += X##_f0; \ + } \ + else \ + { \ + X##_f1 = X##_f1 << (N) | X##_f0 >> (_FP_W_TYPE_SIZE - (N)); \ + X##_f0 <<= (N); \ + } \ + 0; \ + }) \ + : ({ \ + X##_f1 = X##_f0 << ((N) - _FP_W_TYPE_SIZE); \ + X##_f0 = 0; \ + })) + + +#define _FP_FRAC_SRL_2(X,N) \ +(void)(((N) < _FP_W_TYPE_SIZE) \ + ? ({ \ + X##_f0 = X##_f0 >> (N) | X##_f1 << (_FP_W_TYPE_SIZE - (N)); \ + X##_f1 >>= (N); \ + }) \ + : ({ \ + X##_f0 = X##_f1 >> ((N) - _FP_W_TYPE_SIZE); \ + X##_f1 = 0; \ + })) + +/* Right shift with sticky-lsb. */ +#define _FP_FRAC_SRST_2(X,S, N,sz) \ +(void)(((N) < _FP_W_TYPE_SIZE) \ + ? ({ \ + S = (__builtin_constant_p(N) && (N) == 1 \ + ? X##_f0 & 1 \ + : (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0); \ + X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N)); \ + X##_f1 >>= (N); \ + }) \ + : ({ \ + S = ((((N) == _FP_W_TYPE_SIZE \ + ? 0 \ + : (X##_f1 << (2*_FP_W_TYPE_SIZE - (N)))) \ + | X##_f0) != 0); \ + X##_f0 = (X##_f1 >> ((N) - _FP_W_TYPE_SIZE)); \ + X##_f1 = 0; \ + })) + +#define _FP_FRAC_SRS_2(X,N,sz) \ +(void)(((N) < _FP_W_TYPE_SIZE) \ + ? ({ \ + X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N) | \ + (__builtin_constant_p(N) && (N) == 1 \ + ? X##_f0 & 1 \ + : (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0)); \ + X##_f1 >>= (N); \ + }) \ + : ({ \ + X##_f0 = (X##_f1 >> ((N) - _FP_W_TYPE_SIZE) | \ + ((((N) == _FP_W_TYPE_SIZE \ + ? 0 \ + : (X##_f1 << (2*_FP_W_TYPE_SIZE - (N)))) \ + | X##_f0) != 0)); \ + X##_f1 = 0; \ + })) + +#define _FP_FRAC_ADDI_2(X,I) \ + __FP_FRAC_ADDI_2(X##_f1, X##_f0, I) + +#define _FP_FRAC_ADD_2(R,X,Y) \ + __FP_FRAC_ADD_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0) + +#define _FP_FRAC_SUB_2(R,X,Y) \ + __FP_FRAC_SUB_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0) + +#define _FP_FRAC_DEC_2(X,Y) \ + __FP_FRAC_DEC_2(X##_f1, X##_f0, Y##_f1, Y##_f0) + +#define _FP_FRAC_CLZ_2(R,X) \ + do { \ + if (X##_f1) \ + __FP_CLZ(R,X##_f1); \ + else \ + { \ + __FP_CLZ(R,X##_f0); \ + R += _FP_W_TYPE_SIZE; \ + } \ + } while(0) + +/* Predicates */ +#define _FP_FRAC_NEGP_2(X) ((_FP_WS_TYPE)X##_f1 < 0) +#define _FP_FRAC_ZEROP_2(X) ((X##_f1 | X##_f0) == 0) +#define _FP_FRAC_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs) +#define _FP_FRAC_CLEAR_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) &= ~_FP_OVERFLOW_##fs) +#define _FP_FRAC_EQ_2(X, Y) (X##_f1 == Y##_f1 && X##_f0 == Y##_f0) +#define _FP_FRAC_GT_2(X, Y) \ + (X##_f1 > Y##_f1 || (X##_f1 == Y##_f1 && X##_f0 > Y##_f0)) +#define _FP_FRAC_GE_2(X, Y) \ + (X##_f1 > Y##_f1 || (X##_f1 == Y##_f1 && X##_f0 >= Y##_f0)) + +#define _FP_ZEROFRAC_2 0, 0 +#define _FP_MINFRAC_2 0, 1 +#define _FP_MAXFRAC_2 (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0) + +/* + * Internals + */ + +#define __FP_FRAC_SET_2(X,I1,I0) (X##_f0 = I0, X##_f1 = I1) + +#define __FP_CLZ_2(R, xh, xl) \ + do { \ + if (xh) \ + __FP_CLZ(R,xh); \ + else \ + { \ + __FP_CLZ(R,xl); \ + R += _FP_W_TYPE_SIZE; \ + } \ + } while(0) + +#if 0 + +#ifndef __FP_FRAC_ADDI_2 +#define __FP_FRAC_ADDI_2(xh, xl, i) \ + (xh += ((xl += i) < i)) +#endif +#ifndef __FP_FRAC_ADD_2 +#define __FP_FRAC_ADD_2(rh, rl, xh, xl, yh, yl) \ + (rh = xh + yh + ((rl = xl + yl) < xl)) +#endif +#ifndef __FP_FRAC_SUB_2 +#define __FP_FRAC_SUB_2(rh, rl, xh, xl, yh, yl) \ + (rh = xh - yh - ((rl = xl - yl) > xl)) +#endif +#ifndef __FP_FRAC_DEC_2 +#define __FP_FRAC_DEC_2(xh, xl, yh, yl) \ + do { \ + UWtype _t = xl; \ + xh -= yh + ((xl -= yl) > _t); \ + } while (0) +#endif + +#else + +#undef __FP_FRAC_ADDI_2 +#define __FP_FRAC_ADDI_2(xh, xl, i) add_ssaaaa(xh, xl, xh, xl, 0, i) +#undef __FP_FRAC_ADD_2 +#define __FP_FRAC_ADD_2 add_ssaaaa +#undef __FP_FRAC_SUB_2 +#define __FP_FRAC_SUB_2 sub_ddmmss +#undef __FP_FRAC_DEC_2 +#define __FP_FRAC_DEC_2(xh, xl, yh, yl) sub_ddmmss(xh, xl, xh, xl, yh, yl) + +#endif + +/* + * Unpack the raw bits of a native fp value. Do not classify or + * normalize the data. + */ + +#define _FP_UNPACK_RAW_2(fs, X, val) \ + do { \ + union _FP_UNION_##fs _flo; _flo.flt = (val); \ + \ + X##_f0 = _flo.bits.frac0; \ + X##_f1 = _flo.bits.frac1; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#define _FP_UNPACK_RAW_2_P(fs, X, val) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + X##_f0 = _flo->bits.frac0; \ + X##_f1 = _flo->bits.frac1; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + } while (0) + + +/* + * Repack the raw bits of a native fp value. + */ + +#define _FP_PACK_RAW_2(fs, val, X) \ + do { \ + union _FP_UNION_##fs _flo; \ + \ + _flo.bits.frac0 = X##_f0; \ + _flo.bits.frac1 = X##_f1; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + \ + (val) = _flo.flt; \ + } while (0) + +#define _FP_PACK_RAW_2_P(fs, val, X) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + _flo->bits.frac0 = X##_f0; \ + _flo->bits.frac1 = X##_f1; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } while (0) + + +/* + * Multiplication algorithms: + */ + +/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ + +#define _FP_MUL_MEAT_2_wide(wfracbits, R, X, Y, doit) \ + do { \ + _FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \ + \ + doit(_FP_FRAC_WORD_4(_z,1), _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \ + doit(_b_f1, _b_f0, X##_f0, Y##_f1); \ + doit(_c_f1, _c_f0, X##_f1, Y##_f0); \ + doit(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), X##_f1, Y##_f1); \ + \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), 0, _b_f1, _b_f0, \ + _FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), 0, _c_f1, _c_f0, \ + _FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1)); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \ + R##_f0 = _FP_FRAC_WORD_4(_z,0); \ + R##_f1 = _FP_FRAC_WORD_4(_z,1); \ + } while (0) + +/* Given a 1W * 1W => 2W primitive, do the extended multiplication. + Do only 3 multiplications instead of four. This one is for machines + where multiplication is much more expensive than subtraction. */ + +#define _FP_MUL_MEAT_2_wide_3mul(wfracbits, R, X, Y, doit) \ + do { \ + _FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \ + _FP_W_TYPE _d; \ + int _c1, _c2; \ + \ + _b_f0 = X##_f0 + X##_f1; \ + _c1 = _b_f0 < X##_f0; \ + _b_f1 = Y##_f0 + Y##_f1; \ + _c2 = _b_f1 < Y##_f0; \ + doit(_d, _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \ + doit(_FP_FRAC_WORD_4(_z,2), _FP_FRAC_WORD_4(_z,1), _b_f0, _b_f1); \ + doit(_c_f1, _c_f0, X##_f1, Y##_f1); \ + \ + _b_f0 &= -_c2; \ + _b_f1 &= -_c1; \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), (_c1 & _c2), 0, _d, \ + 0, _FP_FRAC_WORD_4(_z,2), _FP_FRAC_WORD_4(_z,1)); \ + __FP_FRAC_ADDI_2(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _b_f0); \ + __FP_FRAC_ADDI_2(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _b_f1); \ + __FP_FRAC_DEC_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), \ + 0, _d, _FP_FRAC_WORD_4(_z,0)); \ + __FP_FRAC_DEC_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), 0, _c_f1, _c_f0); \ + __FP_FRAC_ADD_2(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), \ + _c_f1, _c_f0, \ + _FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2)); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \ + R##_f0 = _FP_FRAC_WORD_4(_z,0); \ + R##_f1 = _FP_FRAC_WORD_4(_z,1); \ + } while (0) + +#define _FP_MUL_MEAT_2_gmp(wfracbits, R, X, Y) \ + do { \ + _FP_FRAC_DECL_4(_z); \ + _FP_W_TYPE _x[2], _y[2]; \ + _x[0] = X##_f0; _x[1] = X##_f1; \ + _y[0] = Y##_f0; _y[1] = Y##_f1; \ + \ + mpn_mul_n(_z_f, _x, _y, 2); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \ + R##_f0 = _z_f[0]; \ + R##_f1 = _z_f[1]; \ + } while (0) + +/* Do at most 120x120=240 bits multiplication using double floating + point multiplication. This is useful if floating point + multiplication has much bigger throughput than integer multiply. + It is supposed to work for _FP_W_TYPE_SIZE 64 and wfracbits + between 106 and 120 only. + Caller guarantees that X and Y has (1LLL << (wfracbits - 1)) set. + SETFETZ is a macro which will disable all FPU exceptions and set rounding + towards zero, RESETFE should optionally reset it back. */ + +#define _FP_MUL_MEAT_2_120_240_double(wfracbits, R, X, Y, setfetz, resetfe) \ + do { \ + static const double _const[] = { \ + /* 2^-24 */ 5.9604644775390625e-08, \ + /* 2^-48 */ 3.5527136788005009e-15, \ + /* 2^-72 */ 2.1175823681357508e-22, \ + /* 2^-96 */ 1.2621774483536189e-29, \ + /* 2^28 */ 2.68435456e+08, \ + /* 2^4 */ 1.600000e+01, \ + /* 2^-20 */ 9.5367431640625e-07, \ + /* 2^-44 */ 5.6843418860808015e-14, \ + /* 2^-68 */ 3.3881317890172014e-21, \ + /* 2^-92 */ 2.0194839173657902e-28, \ + /* 2^-116 */ 1.2037062152420224e-35}; \ + double _a240, _b240, _c240, _d240, _e240, _f240, \ + _g240, _h240, _i240, _j240, _k240; \ + union { double d; UDItype i; } _l240, _m240, _n240, _o240, \ + _p240, _q240, _r240, _s240; \ + UDItype _t240, _u240, _v240, _w240, _x240, _y240 = 0; \ + \ + if (wfracbits < 106 || wfracbits > 120) \ + abort(); \ + \ + setfetz; \ + \ + _e240 = (double)(long)(X##_f0 & 0xffffff); \ + _j240 = (double)(long)(Y##_f0 & 0xffffff); \ + _d240 = (double)(long)((X##_f0 >> 24) & 0xffffff); \ + _i240 = (double)(long)((Y##_f0 >> 24) & 0xffffff); \ + _c240 = (double)(long)(((X##_f1 << 16) & 0xffffff) | (X##_f0 >> 48)); \ + _h240 = (double)(long)(((Y##_f1 << 16) & 0xffffff) | (Y##_f0 >> 48)); \ + _b240 = (double)(long)((X##_f1 >> 8) & 0xffffff); \ + _g240 = (double)(long)((Y##_f1 >> 8) & 0xffffff); \ + _a240 = (double)(long)(X##_f1 >> 32); \ + _f240 = (double)(long)(Y##_f1 >> 32); \ + _e240 *= _const[3]; \ + _j240 *= _const[3]; \ + _d240 *= _const[2]; \ + _i240 *= _const[2]; \ + _c240 *= _const[1]; \ + _h240 *= _const[1]; \ + _b240 *= _const[0]; \ + _g240 *= _const[0]; \ + _s240.d = _e240*_j240;\ + _r240.d = _d240*_j240 + _e240*_i240;\ + _q240.d = _c240*_j240 + _d240*_i240 + _e240*_h240;\ + _p240.d = _b240*_j240 + _c240*_i240 + _d240*_h240 + _e240*_g240;\ + _o240.d = _a240*_j240 + _b240*_i240 + _c240*_h240 + _d240*_g240 + _e240*_f240;\ + _n240.d = _a240*_i240 + _b240*_h240 + _c240*_g240 + _d240*_f240; \ + _m240.d = _a240*_h240 + _b240*_g240 + _c240*_f240; \ + _l240.d = _a240*_g240 + _b240*_f240; \ + _k240 = _a240*_f240; \ + _r240.d += _s240.d; \ + _q240.d += _r240.d; \ + _p240.d += _q240.d; \ + _o240.d += _p240.d; \ + _n240.d += _o240.d; \ + _m240.d += _n240.d; \ + _l240.d += _m240.d; \ + _k240 += _l240.d; \ + _s240.d -= ((_const[10]+_s240.d)-_const[10]); \ + _r240.d -= ((_const[9]+_r240.d)-_const[9]); \ + _q240.d -= ((_const[8]+_q240.d)-_const[8]); \ + _p240.d -= ((_const[7]+_p240.d)-_const[7]); \ + _o240.d += _const[7]; \ + _n240.d += _const[6]; \ + _m240.d += _const[5]; \ + _l240.d += _const[4]; \ + if (_s240.d != 0.0) _y240 = 1; \ + if (_r240.d != 0.0) _y240 = 1; \ + if (_q240.d != 0.0) _y240 = 1; \ + if (_p240.d != 0.0) _y240 = 1; \ + _t240 = (DItype)_k240; \ + _u240 = _l240.i; \ + _v240 = _m240.i; \ + _w240 = _n240.i; \ + _x240 = _o240.i; \ + R##_f1 = (_t240 << (128 - (wfracbits - 1))) \ + | ((_u240 & 0xffffff) >> ((wfracbits - 1) - 104)); \ + R##_f0 = ((_u240 & 0xffffff) << (168 - (wfracbits - 1))) \ + | ((_v240 & 0xffffff) << (144 - (wfracbits - 1))) \ + | ((_w240 & 0xffffff) << (120 - (wfracbits - 1))) \ + | ((_x240 & 0xffffff) >> ((wfracbits - 1) - 96)) \ + | _y240; \ + resetfe; \ + } while (0) + +/* + * Division algorithms: + */ + +#define _FP_DIV_MEAT_2_udiv(fs, R, X, Y) \ + do { \ + _FP_W_TYPE _n_f2, _n_f1, _n_f0, _r_f1, _r_f0, _m_f1, _m_f0; \ + if (_FP_FRAC_GT_2(X, Y)) \ + { \ + _n_f2 = X##_f1 >> 1; \ + _n_f1 = X##_f1 << (_FP_W_TYPE_SIZE - 1) | X##_f0 >> 1; \ + _n_f0 = X##_f0 << (_FP_W_TYPE_SIZE - 1); \ + } \ + else \ + { \ + R##_e--; \ + _n_f2 = X##_f1; \ + _n_f1 = X##_f0; \ + _n_f0 = 0; \ + } \ + \ + /* Normalize, i.e. make the most significant bit of the \ + denominator set. */ \ + _FP_FRAC_SLL_2(Y, _FP_WFRACXBITS_##fs); \ + \ + udiv_qrnnd(R##_f1, _r_f1, _n_f2, _n_f1, Y##_f1); \ + umul_ppmm(_m_f1, _m_f0, R##_f1, Y##_f0); \ + _r_f0 = _n_f0; \ + if (_FP_FRAC_GT_2(_m, _r)) \ + { \ + R##_f1--; \ + _FP_FRAC_ADD_2(_r, Y, _r); \ + if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \ + { \ + R##_f1--; \ + _FP_FRAC_ADD_2(_r, Y, _r); \ + } \ + } \ + _FP_FRAC_DEC_2(_r, _m); \ + \ + if (_r_f1 == Y##_f1) \ + { \ + /* This is a special case, not an optimization \ + (_r/Y##_f1 would not fit into UWtype). \ + As _r is guaranteed to be < Y, R##_f0 can be either \ + (UWtype)-1 or (UWtype)-2. But as we know what kind \ + of bits it is (sticky, guard, round), we don't care. \ + We also don't care what the reminder is, because the \ + guard bit will be set anyway. -jj */ \ + R##_f0 = -1; \ + } \ + else \ + { \ + udiv_qrnnd(R##_f0, _r_f1, _r_f1, _r_f0, Y##_f1); \ + umul_ppmm(_m_f1, _m_f0, R##_f0, Y##_f0); \ + _r_f0 = 0; \ + if (_FP_FRAC_GT_2(_m, _r)) \ + { \ + R##_f0--; \ + _FP_FRAC_ADD_2(_r, Y, _r); \ + if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \ + { \ + R##_f0--; \ + _FP_FRAC_ADD_2(_r, Y, _r); \ + } \ + } \ + if (!_FP_FRAC_EQ_2(_r, _m)) \ + R##_f0 |= _FP_WORK_STICKY; \ + } \ + } while (0) + + +#define _FP_DIV_MEAT_2_gmp(fs, R, X, Y) \ + do { \ + _FP_W_TYPE _x[4], _y[2], _z[4]; \ + _y[0] = Y##_f0; _y[1] = Y##_f1; \ + _x[0] = _x[3] = 0; \ + if (_FP_FRAC_GT_2(X, Y)) \ + { \ + R##_e++; \ + _x[1] = (X##_f0 << (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE) | \ + X##_f1 >> (_FP_W_TYPE_SIZE - \ + (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE))); \ + _x[2] = X##_f1 << (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE); \ + } \ + else \ + { \ + _x[1] = (X##_f0 << (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE) | \ + X##_f1 >> (_FP_W_TYPE_SIZE - \ + (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE))); \ + _x[2] = X##_f1 << (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE); \ + } \ + \ + (void) mpn_divrem (_z, 0, _x, 4, _y, 2); \ + R##_f1 = _z[1]; \ + R##_f0 = _z[0] | ((_x[0] | _x[1]) != 0); \ + } while (0) + + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + */ + +#define _FP_SQRT_MEAT_2(R, S, T, X, q) \ + do { \ + while (q) \ + { \ + T##_f1 = S##_f1 + q; \ + if (T##_f1 <= X##_f1) \ + { \ + S##_f1 = T##_f1 + q; \ + X##_f1 -= T##_f1; \ + R##_f1 += q; \ + } \ + _FP_FRAC_SLL_2(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q != _FP_WORK_ROUND) \ + { \ + T##_f0 = S##_f0 + q; \ + T##_f1 = S##_f1; \ + if (T##_f1 < X##_f1 || \ + (T##_f1 == X##_f1 && T##_f0 <= X##_f0)) \ + { \ + S##_f0 = T##_f0 + q; \ + S##_f1 += (T##_f0 > S##_f0); \ + _FP_FRAC_DEC_2(X, T); \ + R##_f0 += q; \ + } \ + _FP_FRAC_SLL_2(X, 1); \ + q >>= 1; \ + } \ + if (X##_f0 | X##_f1) \ + { \ + if (S##_f1 < X##_f1 || \ + (S##_f1 == X##_f1 && S##_f0 < X##_f0)) \ + R##_f0 |= _FP_WORK_ROUND; \ + R##_f0 |= _FP_WORK_STICKY; \ + } \ + } while (0) + + +/* + * Assembly/disassembly for converting to/from integral types. + * No shifting or overflow handled here. + */ + +#define _FP_FRAC_ASSEMBLE_2(r, X, rsize) \ +(void)((rsize <= _FP_W_TYPE_SIZE) \ + ? ({ r = X##_f0; }) \ + : ({ \ + r = X##_f1; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f0; \ + })) + +#define _FP_FRAC_DISASSEMBLE_2(X, r, rsize) \ + do { \ + X##_f0 = r; \ + X##_f1 = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \ + } while (0) + +/* + * Convert FP values between word sizes + */ + +#define _FP_FRAC_COPY_1_2(D, S) (D##_f = S##_f0) + +#define _FP_FRAC_COPY_2_1(D, S) ((D##_f0 = S##_f), (D##_f1 = 0)) + +#define _FP_FRAC_COPY_2_2(D,S) _FP_FRAC_COPY_2(D,S) diff --git a/libgcc/soft-fp/op-4.h b/libgcc/soft-fp/op-4.h new file mode 100644 index 00000000000..70b9fafbe5a --- /dev/null +++ b/libgcc/soft-fp/op-4.h @@ -0,0 +1,688 @@ +/* Software floating-point emulation. + Basic four-word fraction declaration and manipulation. + Copyright (C) 1997,1998,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#define _FP_FRAC_DECL_4(X) _FP_W_TYPE X##_f[4] +#define _FP_FRAC_COPY_4(D,S) \ + (D##_f[0] = S##_f[0], D##_f[1] = S##_f[1], \ + D##_f[2] = S##_f[2], D##_f[3] = S##_f[3]) +#define _FP_FRAC_SET_4(X,I) __FP_FRAC_SET_4(X, I) +#define _FP_FRAC_HIGH_4(X) (X##_f[3]) +#define _FP_FRAC_LOW_4(X) (X##_f[0]) +#define _FP_FRAC_WORD_4(X,w) (X##_f[w]) + +#define _FP_FRAC_SLL_4(X,N) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _up = (N) % _FP_W_TYPE_SIZE; \ + _down = _FP_W_TYPE_SIZE - _up; \ + if (!_up) \ + for (_i = 3; _i >= _skip; --_i) \ + X##_f[_i] = X##_f[_i-_skip]; \ + else \ + { \ + for (_i = 3; _i > _skip; --_i) \ + X##_f[_i] = X##_f[_i-_skip] << _up \ + | X##_f[_i-_skip-1] >> _down; \ + X##_f[_i--] = X##_f[0] << _up; \ + } \ + for (; _i >= 0; --_i) \ + X##_f[_i] = 0; \ + } while (0) + +/* This one was broken too */ +#define _FP_FRAC_SRL_4(X,N) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _down = (N) % _FP_W_TYPE_SIZE; \ + _up = _FP_W_TYPE_SIZE - _down; \ + if (!_down) \ + for (_i = 0; _i <= 3-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip]; \ + else \ + { \ + for (_i = 0; _i < 3-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip] >> _down \ + | X##_f[_i+_skip+1] << _up; \ + X##_f[_i++] = X##_f[3] >> _down; \ + } \ + for (; _i < 4; ++_i) \ + X##_f[_i] = 0; \ + } while (0) + + +/* Right shift with sticky-lsb. + * What this actually means is that we do a standard right-shift, + * but that if any of the bits that fall off the right hand side + * were one then we always set the LSbit. + */ +#define _FP_FRAC_SRST_4(X,S,N,size) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _FP_W_TYPE _s; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _down = (N) % _FP_W_TYPE_SIZE; \ + _up = _FP_W_TYPE_SIZE - _down; \ + for (_s = _i = 0; _i < _skip; ++_i) \ + _s |= X##_f[_i]; \ + if (!_down) \ + for (_i = 0; _i <= 3-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip]; \ + else \ + { \ + _s |= X##_f[_i] << _up; \ + for (_i = 0; _i < 3-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip] >> _down \ + | X##_f[_i+_skip+1] << _up; \ + X##_f[_i++] = X##_f[3] >> _down; \ + } \ + for (; _i < 4; ++_i) \ + X##_f[_i] = 0; \ + S = (_s != 0); \ + } while (0) + +#define _FP_FRAC_SRS_4(X,N,size) \ + do { \ + int _sticky; \ + _FP_FRAC_SRST_4(X, _sticky, N, size); \ + X##_f[0] |= _sticky; \ + } while (0) + +#define _FP_FRAC_ADD_4(R,X,Y) \ + __FP_FRAC_ADD_4(R##_f[3], R##_f[2], R##_f[1], R##_f[0], \ + X##_f[3], X##_f[2], X##_f[1], X##_f[0], \ + Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0]) + +#define _FP_FRAC_SUB_4(R,X,Y) \ + __FP_FRAC_SUB_4(R##_f[3], R##_f[2], R##_f[1], R##_f[0], \ + X##_f[3], X##_f[2], X##_f[1], X##_f[0], \ + Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0]) + +#define _FP_FRAC_DEC_4(X,Y) \ + __FP_FRAC_DEC_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], \ + Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0]) + +#define _FP_FRAC_ADDI_4(X,I) \ + __FP_FRAC_ADDI_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], I) + +#define _FP_ZEROFRAC_4 0,0,0,0 +#define _FP_MINFRAC_4 0,0,0,1 +#define _FP_MAXFRAC_4 (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0) + +#define _FP_FRAC_ZEROP_4(X) ((X##_f[0] | X##_f[1] | X##_f[2] | X##_f[3]) == 0) +#define _FP_FRAC_NEGP_4(X) ((_FP_WS_TYPE)X##_f[3] < 0) +#define _FP_FRAC_OVERP_4(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs) +#define _FP_FRAC_CLEAR_OVERP_4(fs,X) (_FP_FRAC_HIGH_##fs(X) &= ~_FP_OVERFLOW_##fs) + +#define _FP_FRAC_EQ_4(X,Y) \ + (X##_f[0] == Y##_f[0] && X##_f[1] == Y##_f[1] \ + && X##_f[2] == Y##_f[2] && X##_f[3] == Y##_f[3]) + +#define _FP_FRAC_GT_4(X,Y) \ + (X##_f[3] > Y##_f[3] || \ + (X##_f[3] == Y##_f[3] && (X##_f[2] > Y##_f[2] || \ + (X##_f[2] == Y##_f[2] && (X##_f[1] > Y##_f[1] || \ + (X##_f[1] == Y##_f[1] && X##_f[0] > Y##_f[0]) \ + )) \ + )) \ + ) + +#define _FP_FRAC_GE_4(X,Y) \ + (X##_f[3] > Y##_f[3] || \ + (X##_f[3] == Y##_f[3] && (X##_f[2] > Y##_f[2] || \ + (X##_f[2] == Y##_f[2] && (X##_f[1] > Y##_f[1] || \ + (X##_f[1] == Y##_f[1] && X##_f[0] >= Y##_f[0]) \ + )) \ + )) \ + ) + + +#define _FP_FRAC_CLZ_4(R,X) \ + do { \ + if (X##_f[3]) \ + { \ + __FP_CLZ(R,X##_f[3]); \ + } \ + else if (X##_f[2]) \ + { \ + __FP_CLZ(R,X##_f[2]); \ + R += _FP_W_TYPE_SIZE; \ + } \ + else if (X##_f[1]) \ + { \ + __FP_CLZ(R,X##_f[1]); \ + R += _FP_W_TYPE_SIZE*2; \ + } \ + else \ + { \ + __FP_CLZ(R,X##_f[0]); \ + R += _FP_W_TYPE_SIZE*3; \ + } \ + } while(0) + + +#define _FP_UNPACK_RAW_4(fs, X, val) \ + do { \ + union _FP_UNION_##fs _flo; _flo.flt = (val); \ + X##_f[0] = _flo.bits.frac0; \ + X##_f[1] = _flo.bits.frac1; \ + X##_f[2] = _flo.bits.frac2; \ + X##_f[3] = _flo.bits.frac3; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#define _FP_UNPACK_RAW_4_P(fs, X, val) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + X##_f[0] = _flo->bits.frac0; \ + X##_f[1] = _flo->bits.frac1; \ + X##_f[2] = _flo->bits.frac2; \ + X##_f[3] = _flo->bits.frac3; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + } while (0) + +#define _FP_PACK_RAW_4(fs, val, X) \ + do { \ + union _FP_UNION_##fs _flo; \ + _flo.bits.frac0 = X##_f[0]; \ + _flo.bits.frac1 = X##_f[1]; \ + _flo.bits.frac2 = X##_f[2]; \ + _flo.bits.frac3 = X##_f[3]; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + (val) = _flo.flt; \ + } while (0) + +#define _FP_PACK_RAW_4_P(fs, val, X) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + _flo->bits.frac0 = X##_f[0]; \ + _flo->bits.frac1 = X##_f[1]; \ + _flo->bits.frac2 = X##_f[2]; \ + _flo->bits.frac3 = X##_f[3]; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } while (0) + +/* + * Multiplication algorithms: + */ + +/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ + +#define _FP_MUL_MEAT_4_wide(wfracbits, R, X, Y, doit) \ + do { \ + _FP_FRAC_DECL_8(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \ + _FP_FRAC_DECL_2(_d); _FP_FRAC_DECL_2(_e); _FP_FRAC_DECL_2(_f); \ + \ + doit(_FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0), X##_f[0], Y##_f[0]); \ + doit(_b_f1, _b_f0, X##_f[0], Y##_f[1]); \ + doit(_c_f1, _c_f0, X##_f[1], Y##_f[0]); \ + doit(_d_f1, _d_f0, X##_f[1], Y##_f[1]); \ + doit(_e_f1, _e_f0, X##_f[0], Y##_f[2]); \ + doit(_f_f1, _f_f0, X##_f[2], Y##_f[0]); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1), 0,_b_f1,_b_f0, \ + 0,0,_FP_FRAC_WORD_8(_z,1)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1), 0,_c_f1,_c_f0, \ + _FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2), 0,_d_f1,_d_f0, \ + 0,_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2), 0,_e_f1,_e_f0, \ + _FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2), 0,_f_f1,_f_f0, \ + _FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2)); \ + doit(_b_f1, _b_f0, X##_f[0], Y##_f[3]); \ + doit(_c_f1, _c_f0, X##_f[3], Y##_f[0]); \ + doit(_d_f1, _d_f0, X##_f[1], Y##_f[2]); \ + doit(_e_f1, _e_f0, X##_f[2], Y##_f[1]); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3), 0,_b_f1,_b_f0, \ + 0,_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3), 0,_c_f1,_c_f0, \ + _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3), 0,_d_f1,_d_f0, \ + _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3), 0,_e_f1,_e_f0, \ + _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3)); \ + doit(_b_f1, _b_f0, X##_f[2], Y##_f[2]); \ + doit(_c_f1, _c_f0, X##_f[1], Y##_f[3]); \ + doit(_d_f1, _d_f0, X##_f[3], Y##_f[1]); \ + doit(_e_f1, _e_f0, X##_f[2], Y##_f[3]); \ + doit(_f_f1, _f_f0, X##_f[3], Y##_f[2]); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4), 0,_b_f1,_b_f0, \ + 0,_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4), 0,_c_f1,_c_f0, \ + _FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4), 0,_d_f1,_d_f0, \ + _FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \ + _FP_FRAC_WORD_8(_z,5), 0,_e_f1,_e_f0, \ + 0,_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \ + _FP_FRAC_WORD_8(_z,5), 0,_f_f1,_f_f0, \ + _FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \ + _FP_FRAC_WORD_8(_z,5)); \ + doit(_b_f1, _b_f0, X##_f[3], Y##_f[3]); \ + __FP_FRAC_ADD_2(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \ + _b_f1,_b_f0, \ + _FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6)); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_8(_z, wfracbits-1, 2*wfracbits); \ + __FP_FRAC_SET_4(R, _FP_FRAC_WORD_8(_z,3), _FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0)); \ + } while (0) + +#define _FP_MUL_MEAT_4_gmp(wfracbits, R, X, Y) \ + do { \ + _FP_FRAC_DECL_8(_z); \ + \ + mpn_mul_n(_z_f, _x_f, _y_f, 4); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_8(_z, wfracbits-1, 2*wfracbits); \ + __FP_FRAC_SET_4(R, _FP_FRAC_WORD_8(_z,3), _FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0)); \ + } while (0) + +/* + * Helper utility for _FP_DIV_MEAT_4_udiv: + * pppp = m * nnn + */ +#define umul_ppppmnnn(p3,p2,p1,p0,m,n2,n1,n0) \ + do { \ + UWtype _t; \ + umul_ppmm(p1,p0,m,n0); \ + umul_ppmm(p2,_t,m,n1); \ + __FP_FRAC_ADDI_2(p2,p1,_t); \ + umul_ppmm(p3,_t,m,n2); \ + __FP_FRAC_ADDI_2(p3,p2,_t); \ + } while (0) + +/* + * Division algorithms: + */ + +#define _FP_DIV_MEAT_4_udiv(fs, R, X, Y) \ + do { \ + int _i; \ + _FP_FRAC_DECL_4(_n); _FP_FRAC_DECL_4(_m); \ + _FP_FRAC_SET_4(_n, _FP_ZEROFRAC_4); \ + if (_FP_FRAC_GT_4(X, Y)) \ + { \ + _n_f[3] = X##_f[0] << (_FP_W_TYPE_SIZE - 1); \ + _FP_FRAC_SRL_4(X, 1); \ + } \ + else \ + R##_e--; \ + \ + /* Normalize, i.e. make the most significant bit of the \ + denominator set. */ \ + _FP_FRAC_SLL_4(Y, _FP_WFRACXBITS_##fs); \ + \ + for (_i = 3; ; _i--) \ + { \ + if (X##_f[3] == Y##_f[3]) \ + { \ + /* This is a special case, not an optimization \ + (X##_f[3]/Y##_f[3] would not fit into UWtype). \ + As X## is guaranteed to be < Y, R##_f[_i] can be either \ + (UWtype)-1 or (UWtype)-2. */ \ + R##_f[_i] = -1; \ + if (!_i) \ + break; \ + __FP_FRAC_SUB_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], \ + Y##_f[2], Y##_f[1], Y##_f[0], 0, \ + X##_f[2], X##_f[1], X##_f[0], _n_f[_i]); \ + _FP_FRAC_SUB_4(X, Y, X); \ + if (X##_f[3] > Y##_f[3]) \ + { \ + R##_f[_i] = -2; \ + _FP_FRAC_ADD_4(X, Y, X); \ + } \ + } \ + else \ + { \ + udiv_qrnnd(R##_f[_i], X##_f[3], X##_f[3], X##_f[2], Y##_f[3]); \ + umul_ppppmnnn(_m_f[3], _m_f[2], _m_f[1], _m_f[0], \ + R##_f[_i], Y##_f[2], Y##_f[1], Y##_f[0]); \ + X##_f[2] = X##_f[1]; \ + X##_f[1] = X##_f[0]; \ + X##_f[0] = _n_f[_i]; \ + if (_FP_FRAC_GT_4(_m, X)) \ + { \ + R##_f[_i]--; \ + _FP_FRAC_ADD_4(X, Y, X); \ + if (_FP_FRAC_GE_4(X, Y) && _FP_FRAC_GT_4(_m, X)) \ + { \ + R##_f[_i]--; \ + _FP_FRAC_ADD_4(X, Y, X); \ + } \ + } \ + _FP_FRAC_DEC_4(X, _m); \ + if (!_i) \ + { \ + if (!_FP_FRAC_EQ_4(X, _m)) \ + R##_f[0] |= _FP_WORK_STICKY; \ + break; \ + } \ + } \ + } \ + } while (0) + + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + */ + +#define _FP_SQRT_MEAT_4(R, S, T, X, q) \ + do { \ + while (q) \ + { \ + T##_f[3] = S##_f[3] + q; \ + if (T##_f[3] <= X##_f[3]) \ + { \ + S##_f[3] = T##_f[3] + q; \ + X##_f[3] -= T##_f[3]; \ + R##_f[3] += q; \ + } \ + _FP_FRAC_SLL_4(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q) \ + { \ + T##_f[2] = S##_f[2] + q; \ + T##_f[3] = S##_f[3]; \ + if (T##_f[3] < X##_f[3] || \ + (T##_f[3] == X##_f[3] && T##_f[2] <= X##_f[2])) \ + { \ + S##_f[2] = T##_f[2] + q; \ + S##_f[3] += (T##_f[2] > S##_f[2]); \ + __FP_FRAC_DEC_2(X##_f[3], X##_f[2], \ + T##_f[3], T##_f[2]); \ + R##_f[2] += q; \ + } \ + _FP_FRAC_SLL_4(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q) \ + { \ + T##_f[1] = S##_f[1] + q; \ + T##_f[2] = S##_f[2]; \ + T##_f[3] = S##_f[3]; \ + if (T##_f[3] < X##_f[3] || \ + (T##_f[3] == X##_f[3] && (T##_f[2] < X##_f[2] || \ + (T##_f[2] == X##_f[2] && T##_f[1] <= X##_f[1])))) \ + { \ + S##_f[1] = T##_f[1] + q; \ + S##_f[2] += (T##_f[1] > S##_f[1]); \ + S##_f[3] += (T##_f[2] > S##_f[2]); \ + __FP_FRAC_DEC_3(X##_f[3], X##_f[2], X##_f[1], \ + T##_f[3], T##_f[2], T##_f[1]); \ + R##_f[1] += q; \ + } \ + _FP_FRAC_SLL_4(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q != _FP_WORK_ROUND) \ + { \ + T##_f[0] = S##_f[0] + q; \ + T##_f[1] = S##_f[1]; \ + T##_f[2] = S##_f[2]; \ + T##_f[3] = S##_f[3]; \ + if (_FP_FRAC_GE_4(X,T)) \ + { \ + S##_f[0] = T##_f[0] + q; \ + S##_f[1] += (T##_f[0] > S##_f[0]); \ + S##_f[2] += (T##_f[1] > S##_f[1]); \ + S##_f[3] += (T##_f[2] > S##_f[2]); \ + _FP_FRAC_DEC_4(X, T); \ + R##_f[0] += q; \ + } \ + _FP_FRAC_SLL_4(X, 1); \ + q >>= 1; \ + } \ + if (!_FP_FRAC_ZEROP_4(X)) \ + { \ + if (_FP_FRAC_GT_4(X,S)) \ + R##_f[0] |= _FP_WORK_ROUND; \ + R##_f[0] |= _FP_WORK_STICKY; \ + } \ + } while (0) + + +/* + * Internals + */ + +#define __FP_FRAC_SET_4(X,I3,I2,I1,I0) \ + (X##_f[3] = I3, X##_f[2] = I2, X##_f[1] = I1, X##_f[0] = I0) + +#ifndef __FP_FRAC_ADD_3 +#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ + do { \ + _FP_W_TYPE _c1, _c2; \ + r0 = x0 + y0; \ + _c1 = r0 < x0; \ + r1 = x1 + y1; \ + _c2 = r1 < x1; \ + r1 += _c1; \ + _c2 |= r1 < _c1; \ + r2 = x2 + y2 + _c2; \ + } while (0) +#endif + +#ifndef __FP_FRAC_ADD_4 +#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + _FP_W_TYPE _c1, _c2, _c3; \ + r0 = x0 + y0; \ + _c1 = r0 < x0; \ + r1 = x1 + y1; \ + _c2 = r1 < x1; \ + r1 += _c1; \ + _c2 |= r1 < _c1; \ + r2 = x2 + y2; \ + _c3 = r2 < x2; \ + r2 += _c2; \ + _c3 |= r2 < _c2; \ + r3 = x3 + y3 + _c3; \ + } while (0) +#endif + +#ifndef __FP_FRAC_SUB_3 +#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ + do { \ + _FP_W_TYPE _c1, _c2; \ + r0 = x0 - y0; \ + _c1 = r0 > x0; \ + r1 = x1 - y1; \ + _c2 = r1 > x1; \ + r1 -= _c1; \ + _c2 |= _c1 && (y1 == x1); \ + r2 = x2 - y2 - _c2; \ + } while (0) +#endif + +#ifndef __FP_FRAC_SUB_4 +#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + _FP_W_TYPE _c1, _c2, _c3; \ + r0 = x0 - y0; \ + _c1 = r0 > x0; \ + r1 = x1 - y1; \ + _c2 = r1 > x1; \ + r1 -= _c1; \ + _c2 |= _c1 && (y1 == x1); \ + r2 = x2 - y2; \ + _c3 = r2 > x2; \ + r2 -= _c2; \ + _c3 |= _c2 && (y2 == x2); \ + r3 = x3 - y3 - _c3; \ + } while (0) +#endif + +#ifndef __FP_FRAC_DEC_3 +#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) \ + do { \ + UWtype _t0, _t1, _t2; \ + _t0 = x0, _t1 = x1, _t2 = x2; \ + __FP_FRAC_SUB_3 (x2, x1, x0, _t2, _t1, _t0, y2, y1, y0); \ + } while (0) +#endif + +#ifndef __FP_FRAC_DEC_4 +#define __FP_FRAC_DEC_4(x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + UWtype _t0, _t1, _t2, _t3; \ + _t0 = x0, _t1 = x1, _t2 = x2, _t3 = x3; \ + __FP_FRAC_SUB_4 (x3,x2,x1,x0,_t3,_t2,_t1,_t0, y3,y2,y1,y0); \ + } while (0) +#endif + +#ifndef __FP_FRAC_ADDI_4 +#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \ + do { \ + UWtype _t; \ + _t = ((x0 += i) < i); \ + x1 += _t; _t = (x1 < _t); \ + x2 += _t; _t = (x2 < _t); \ + x3 += _t; \ + } while (0) +#endif + +/* Convert FP values between word sizes. This appears to be more + * complicated than I'd have expected it to be, so these might be + * wrong... These macros are in any case somewhat bogus because they + * use information about what various FRAC_n variables look like + * internally [eg, that 2 word vars are X_f0 and x_f1]. But so do + * the ones in op-2.h and op-1.h. + */ +#define _FP_FRAC_COPY_1_4(D, S) (D##_f = S##_f[0]) + +#define _FP_FRAC_COPY_2_4(D, S) \ +do { \ + D##_f0 = S##_f[0]; \ + D##_f1 = S##_f[1]; \ +} while (0) + +/* Assembly/disassembly for converting to/from integral types. + * No shifting or overflow handled here. + */ +/* Put the FP value X into r, which is an integer of size rsize. */ +#define _FP_FRAC_ASSEMBLE_4(r, X, rsize) \ + do { \ + if (rsize <= _FP_W_TYPE_SIZE) \ + r = X##_f[0]; \ + else if (rsize <= 2*_FP_W_TYPE_SIZE) \ + { \ + r = X##_f[1]; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f[0]; \ + } \ + else \ + { \ + /* I'm feeling lazy so we deal with int == 3words (implausible)*/ \ + /* and int == 4words as a single case. */ \ + r = X##_f[3]; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f[2]; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f[1]; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f[0]; \ + } \ + } while (0) + +/* "No disassemble Number Five!" */ +/* move an integer of size rsize into X's fractional part. We rely on + * the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid + * having to mask the values we store into it. + */ +#define _FP_FRAC_DISASSEMBLE_4(X, r, rsize) \ + do { \ + X##_f[0] = r; \ + X##_f[1] = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \ + X##_f[2] = (rsize <= 2*_FP_W_TYPE_SIZE ? 0 : r >> 2*_FP_W_TYPE_SIZE); \ + X##_f[3] = (rsize <= 3*_FP_W_TYPE_SIZE ? 0 : r >> 3*_FP_W_TYPE_SIZE); \ + } while (0); + +#define _FP_FRAC_COPY_4_1(D, S) \ +do { \ + D##_f[0] = S##_f; \ + D##_f[1] = D##_f[2] = D##_f[3] = 0; \ +} while (0) + +#define _FP_FRAC_COPY_4_2(D, S) \ +do { \ + D##_f[0] = S##_f0; \ + D##_f[1] = S##_f1; \ + D##_f[2] = D##_f[3] = 0; \ +} while (0) + +#define _FP_FRAC_COPY_4_4(D,S) _FP_FRAC_COPY_4(D,S) diff --git a/libgcc/soft-fp/op-8.h b/libgcc/soft-fp/op-8.h new file mode 100644 index 00000000000..e0612a5e62f --- /dev/null +++ b/libgcc/soft-fp/op-8.h @@ -0,0 +1,111 @@ +/* Software floating-point emulation. + Basic eight-word fraction declaration and manipulation. + Copyright (C) 1997,1998,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +/* We need just a few things from here for op-4, if we ever need some + other macros, they can be added. */ +#define _FP_FRAC_DECL_8(X) _FP_W_TYPE X##_f[8] +#define _FP_FRAC_HIGH_8(X) (X##_f[7]) +#define _FP_FRAC_LOW_8(X) (X##_f[0]) +#define _FP_FRAC_WORD_8(X,w) (X##_f[w]) + +#define _FP_FRAC_SLL_8(X,N) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _up = (N) % _FP_W_TYPE_SIZE; \ + _down = _FP_W_TYPE_SIZE - _up; \ + if (!_up) \ + for (_i = 7; _i >= _skip; --_i) \ + X##_f[_i] = X##_f[_i-_skip]; \ + else \ + { \ + for (_i = 7; _i > _skip; --_i) \ + X##_f[_i] = X##_f[_i-_skip] << _up \ + | X##_f[_i-_skip-1] >> _down; \ + X##_f[_i--] = X##_f[0] << _up; \ + } \ + for (; _i >= 0; --_i) \ + X##_f[_i] = 0; \ + } while (0) + +#define _FP_FRAC_SRL_8(X,N) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _down = (N) % _FP_W_TYPE_SIZE; \ + _up = _FP_W_TYPE_SIZE - _down; \ + if (!_down) \ + for (_i = 0; _i <= 7-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip]; \ + else \ + { \ + for (_i = 0; _i < 7-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip] >> _down \ + | X##_f[_i+_skip+1] << _up; \ + X##_f[_i++] = X##_f[7] >> _down; \ + } \ + for (; _i < 8; ++_i) \ + X##_f[_i] = 0; \ + } while (0) + + +/* Right shift with sticky-lsb. + * What this actually means is that we do a standard right-shift, + * but that if any of the bits that fall off the right hand side + * were one then we always set the LSbit. + */ +#define _FP_FRAC_SRS_8(X,N,size) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _FP_W_TYPE _s; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _down = (N) % _FP_W_TYPE_SIZE; \ + _up = _FP_W_TYPE_SIZE - _down; \ + for (_s = _i = 0; _i < _skip; ++_i) \ + _s |= X##_f[_i]; \ + if (!_down) \ + for (_i = 0; _i <= 7-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip]; \ + else \ + { \ + _s |= X##_f[_i] << _up; \ + for (_i = 0; _i < 7-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip] >> _down \ + | X##_f[_i+_skip+1] << _up; \ + X##_f[_i++] = X##_f[7] >> _down; \ + } \ + for (; _i < 8; ++_i) \ + X##_f[_i] = 0; \ + /* don't fix the LSB until the very end when we're sure f[0] is stable */ \ + X##_f[0] |= (_s != 0); \ + } while (0) + diff --git a/libgcc/soft-fp/op-common.h b/libgcc/soft-fp/op-common.h new file mode 100644 index 00000000000..ef11b527b70 --- /dev/null +++ b/libgcc/soft-fp/op-common.h @@ -0,0 +1,1359 @@ +/* Software floating-point emulation. Common operations. + Copyright (C) 1997,1998,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#define _FP_DECL(wc, X) \ + _FP_I_TYPE X##_c __attribute__((unused)), X##_s, X##_e; \ + _FP_FRAC_DECL_##wc(X) + +/* + * Finish truely unpacking a native fp value by classifying the kind + * of fp value and normalizing both the exponent and the fraction. + */ + +#define _FP_UNPACK_CANONICAL(fs, wc, X) \ +do { \ + switch (X##_e) \ + { \ + default: \ + _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_IMPLBIT_##fs; \ + _FP_FRAC_SLL_##wc(X, _FP_WORKBITS); \ + X##_e -= _FP_EXPBIAS_##fs; \ + X##_c = FP_CLS_NORMAL; \ + break; \ + \ + case 0: \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + X##_c = FP_CLS_ZERO; \ + else \ + { \ + /* a denormalized number */ \ + _FP_I_TYPE _shift; \ + _FP_FRAC_CLZ_##wc(_shift, X); \ + _shift -= _FP_FRACXBITS_##fs; \ + _FP_FRAC_SLL_##wc(X, (_shift+_FP_WORKBITS)); \ + X##_e -= _FP_EXPBIAS_##fs - 1 + _shift; \ + X##_c = FP_CLS_NORMAL; \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + } \ + break; \ + \ + case _FP_EXPMAX_##fs: \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + X##_c = FP_CLS_INF; \ + else \ + { \ + X##_c = FP_CLS_NAN; \ + /* Check for signaling NaN */ \ + if (!(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + } \ + break; \ + } \ +} while (0) + +/* Finish unpacking an fp value in semi-raw mode: the mantissa is + shifted by _FP_WORKBITS but the implicit MSB is not inserted and + other classification is not done. */ +#define _FP_UNPACK_SEMIRAW(fs, wc, X) _FP_FRAC_SLL_##wc(X, _FP_WORKBITS) + +/* A semi-raw value has overflowed to infinity. Adjust the mantissa + and exponent appropriately. */ +#define _FP_OVERFLOW_SEMIRAW(fs, wc, X) \ +do { \ + if (FP_ROUNDMODE == FP_RND_NEAREST \ + || (FP_ROUNDMODE == FP_RND_PINF && !X##_s) \ + || (FP_ROUNDMODE == FP_RND_MINF && X##_s)) \ + { \ + X##_e = _FP_EXPMAX_##fs; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + } \ + else \ + { \ + X##_e = _FP_EXPMAX_##fs - 1; \ + _FP_FRAC_SET_##wc(X, _FP_MAXFRAC_##wc); \ + } \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + FP_SET_EXCEPTION(FP_EX_OVERFLOW); \ +} while (0) + +/* Check for a semi-raw value being a signaling NaN and raise the + invalid exception if so. */ +#define _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X) \ +do { \ + if (X##_e == _FP_EXPMAX_##fs \ + && !_FP_FRAC_ZEROP_##wc(X) \ + && !(_FP_FRAC_HIGH_##fs(X) & _FP_QNANBIT_SH_##fs)) \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ +} while (0) + +/* Choose a NaN result from an operation on two semi-raw NaN + values. */ +#define _FP_CHOOSENAN_SEMIRAW(fs, wc, R, X, Y, OP) \ +do { \ + /* _FP_CHOOSENAN expects raw values, so shift as required. */ \ + _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ + _FP_FRAC_SRL_##wc(Y, _FP_WORKBITS); \ + _FP_CHOOSENAN(fs, wc, R, X, Y, OP); \ + _FP_FRAC_SLL_##wc(R, _FP_WORKBITS); \ +} while (0) + +/* Test whether a biased exponent is normal (not zero or maximum). */ +#define _FP_EXP_NORMAL(fs, wc, X) (((X##_e + 1) & _FP_EXPMAX_##fs) > 1) + +/* Prepare to pack an fp value in semi-raw mode: the mantissa is + rounded and shifted right, with the rounding possibly increasing + the exponent (including changing a finite value to infinity). */ +#define _FP_PACK_SEMIRAW(fs, wc, X) \ +do { \ + _FP_ROUND(wc, X); \ + if (_FP_FRAC_HIGH_##fs(X) \ + & (_FP_OVERFLOW_##fs >> 1)) \ + { \ + _FP_FRAC_HIGH_##fs(X) &= ~(_FP_OVERFLOW_##fs >> 1); \ + X##_e++; \ + if (X##_e == _FP_EXPMAX_##fs) \ + _FP_OVERFLOW_SEMIRAW(fs, wc, X); \ + } \ + _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ + if (!_FP_EXP_NORMAL(fs, wc, X) && !_FP_FRAC_ZEROP_##wc(X)) \ + { \ + if (X##_e == 0) \ + FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ + else \ + { \ + if (!_FP_KEEPNANFRACP) \ + { \ + _FP_FRAC_SET_##wc(X, _FP_NANFRAC_##fs); \ + X##_s = _FP_NANSIGN_##fs; \ + } \ + else \ + _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_QNANBIT_##fs; \ + } \ + } \ +} while (0) + +/* + * Before packing the bits back into the native fp result, take care + * of such mundane things as rounding and overflow. Also, for some + * kinds of fp values, the original parts may not have been fully + * extracted -- but that is ok, we can regenerate them now. + */ + +#define _FP_PACK_CANONICAL(fs, wc, X) \ +do { \ + switch (X##_c) \ + { \ + case FP_CLS_NORMAL: \ + X##_e += _FP_EXPBIAS_##fs; \ + if (X##_e > 0) \ + { \ + _FP_ROUND(wc, X); \ + if (_FP_FRAC_OVERP_##wc(fs, X)) \ + { \ + _FP_FRAC_CLEAR_OVERP_##wc(fs, X); \ + X##_e++; \ + } \ + _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ + if (X##_e >= _FP_EXPMAX_##fs) \ + { \ + /* overflow */ \ + switch (FP_ROUNDMODE) \ + { \ + case FP_RND_NEAREST: \ + X##_c = FP_CLS_INF; \ + break; \ + case FP_RND_PINF: \ + if (!X##_s) X##_c = FP_CLS_INF; \ + break; \ + case FP_RND_MINF: \ + if (X##_s) X##_c = FP_CLS_INF; \ + break; \ + } \ + if (X##_c == FP_CLS_INF) \ + { \ + /* Overflow to infinity */ \ + X##_e = _FP_EXPMAX_##fs; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + } \ + else \ + { \ + /* Overflow to maximum normal */ \ + X##_e = _FP_EXPMAX_##fs - 1; \ + _FP_FRAC_SET_##wc(X, _FP_MAXFRAC_##wc); \ + } \ + FP_SET_EXCEPTION(FP_EX_OVERFLOW); \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + } \ + } \ + else \ + { \ + /* we've got a denormalized number */ \ + X##_e = -X##_e + 1; \ + if (X##_e <= _FP_WFRACBITS_##fs) \ + { \ + _FP_FRAC_SRS_##wc(X, X##_e, _FP_WFRACBITS_##fs); \ + _FP_ROUND(wc, X); \ + if (_FP_FRAC_HIGH_##fs(X) \ + & (_FP_OVERFLOW_##fs >> 1)) \ + { \ + X##_e = 1; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + } \ + else \ + { \ + X##_e = 0; \ + _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ + FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ + } \ + } \ + else \ + { \ + /* underflow to zero */ \ + X##_e = 0; \ + if (!_FP_FRAC_ZEROP_##wc(X)) \ + { \ + _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \ + _FP_ROUND(wc, X); \ + _FP_FRAC_LOW_##wc(X) >>= (_FP_WORKBITS); \ + } \ + FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ + } \ + } \ + break; \ + \ + case FP_CLS_ZERO: \ + X##_e = 0; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + break; \ + \ + case FP_CLS_INF: \ + X##_e = _FP_EXPMAX_##fs; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + break; \ + \ + case FP_CLS_NAN: \ + X##_e = _FP_EXPMAX_##fs; \ + if (!_FP_KEEPNANFRACP) \ + { \ + _FP_FRAC_SET_##wc(X, _FP_NANFRAC_##fs); \ + X##_s = _FP_NANSIGN_##fs; \ + } \ + else \ + _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_QNANBIT_##fs; \ + break; \ + } \ +} while (0) + +/* This one accepts raw argument and not cooked, returns + * 1 if X is a signaling NaN. + */ +#define _FP_ISSIGNAN(fs, wc, X) \ +({ \ + int __ret = 0; \ + if (X##_e == _FP_EXPMAX_##fs) \ + { \ + if (!_FP_FRAC_ZEROP_##wc(X) \ + && !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ + __ret = 1; \ + } \ + __ret; \ +}) + + + + + +/* Addition on semi-raw values. */ +#define _FP_ADD_INTERNAL(fs, wc, R, X, Y, OP) \ +do { \ + if (X##_s == Y##_s) \ + { \ + /* Addition. */ \ + R##_s = X##_s; \ + int ediff = X##_e - Y##_e; \ + if (ediff > 0) \ + { \ + R##_e = X##_e; \ + if (Y##_e == 0) \ + { \ + /* Y is zero or denormalized. */ \ + if (_FP_FRAC_ZEROP_##wc(Y)) \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \ + _FP_FRAC_COPY_##wc(R, X); \ + goto add_done; \ + } \ + else \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + ediff--; \ + if (ediff == 0) \ + { \ + _FP_FRAC_ADD_##wc(R, X, Y); \ + goto add3; \ + } \ + if (X##_e == _FP_EXPMAX_##fs) \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \ + _FP_FRAC_COPY_##wc(R, X); \ + goto add_done; \ + } \ + goto add1; \ + } \ + } \ + else if (X##_e == _FP_EXPMAX_##fs) \ + { \ + /* X is NaN or Inf, Y is normal. */ \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \ + _FP_FRAC_COPY_##wc(R, X); \ + goto add_done; \ + } \ + \ + /* Insert implicit MSB of Y. */ \ + _FP_FRAC_HIGH_##fs(Y) |= _FP_IMPLBIT_SH_##fs; \ + \ + add1: \ + /* Shift the mantissa of Y to the right EDIFF steps; \ + remember to account later for the implicit MSB of X. */ \ + if (ediff <= _FP_WFRACBITS_##fs) \ + _FP_FRAC_SRS_##wc(Y, ediff, _FP_WFRACBITS_##fs); \ + else if (!_FP_FRAC_ZEROP_##wc(Y)) \ + _FP_FRAC_SET_##wc(Y, _FP_MINFRAC_##wc); \ + _FP_FRAC_ADD_##wc(R, X, Y); \ + } \ + else if (ediff < 0) \ + { \ + ediff = -ediff; \ + R##_e = Y##_e; \ + if (X##_e == 0) \ + { \ + /* X is zero or denormalized. */ \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \ + _FP_FRAC_COPY_##wc(R, Y); \ + goto add_done; \ + } \ + else \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + ediff--; \ + if (ediff == 0) \ + { \ + _FP_FRAC_ADD_##wc(R, Y, X); \ + goto add3; \ + } \ + if (Y##_e == _FP_EXPMAX_##fs) \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \ + _FP_FRAC_COPY_##wc(R, Y); \ + goto add_done; \ + } \ + goto add2; \ + } \ + } \ + else if (Y##_e == _FP_EXPMAX_##fs) \ + { \ + /* Y is NaN or Inf, X is normal. */ \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \ + _FP_FRAC_COPY_##wc(R, Y); \ + goto add_done; \ + } \ + \ + /* Insert implicit MSB of X. */ \ + _FP_FRAC_HIGH_##fs(X) |= _FP_IMPLBIT_SH_##fs; \ + \ + add2: \ + /* Shift the mantissa of X to the right EDIFF steps; \ + remember to account later for the implicit MSB of Y. */ \ + if (ediff <= _FP_WFRACBITS_##fs) \ + _FP_FRAC_SRS_##wc(X, ediff, _FP_WFRACBITS_##fs); \ + else if (!_FP_FRAC_ZEROP_##wc(X)) \ + _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \ + _FP_FRAC_ADD_##wc(R, Y, X); \ + } \ + else \ + { \ + /* ediff == 0. */ \ + if (!_FP_EXP_NORMAL(fs, wc, X)) \ + { \ + if (X##_e == 0) \ + { \ + /* X and Y are zero or denormalized. */ \ + R##_e = 0; \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + { \ + if (!_FP_FRAC_ZEROP_##wc(Y)) \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + _FP_FRAC_COPY_##wc(R, Y); \ + goto add_done; \ + } \ + else if (_FP_FRAC_ZEROP_##wc(Y)) \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + _FP_FRAC_COPY_##wc(R, X); \ + goto add_done; \ + } \ + else \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + _FP_FRAC_ADD_##wc(R, X, Y); \ + if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \ + { \ + /* Normalized result. */ \ + _FP_FRAC_HIGH_##fs(R) \ + &= ~(_FP_W_TYPE)_FP_IMPLBIT_SH_##fs; \ + R##_e = 1; \ + } \ + goto add_done; \ + } \ + } \ + else \ + { \ + /* X and Y are NaN or Inf. */ \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \ + R##_e = _FP_EXPMAX_##fs; \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + _FP_FRAC_COPY_##wc(R, Y); \ + else if (_FP_FRAC_ZEROP_##wc(Y)) \ + _FP_FRAC_COPY_##wc(R, X); \ + else \ + _FP_CHOOSENAN_SEMIRAW(fs, wc, R, X, Y, OP); \ + goto add_done; \ + } \ + } \ + /* The exponents of X and Y, both normal, are equal. The \ + implicit MSBs will always add to increase the \ + exponent. */ \ + _FP_FRAC_ADD_##wc(R, X, Y); \ + R##_e = X##_e + 1; \ + _FP_FRAC_SRS_##wc(R, 1, _FP_WFRACBITS_##fs); \ + if (R##_e == _FP_EXPMAX_##fs) \ + /* Overflow to infinity (depending on rounding mode). */ \ + _FP_OVERFLOW_SEMIRAW(fs, wc, R); \ + goto add_done; \ + } \ + add3: \ + if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \ + { \ + /* Overflow. */ \ + _FP_FRAC_HIGH_##fs(R) &= ~(_FP_W_TYPE)_FP_IMPLBIT_SH_##fs; \ + R##_e++; \ + _FP_FRAC_SRS_##wc(R, 1, _FP_WFRACBITS_##fs); \ + if (R##_e == _FP_EXPMAX_##fs) \ + /* Overflow to infinity (depending on rounding mode). */ \ + _FP_OVERFLOW_SEMIRAW(fs, wc, R); \ + } \ + add_done: ; \ + } \ + else \ + { \ + /* Subtraction. */ \ + int ediff = X##_e - Y##_e; \ + if (ediff > 0) \ + { \ + R##_e = X##_e; \ + R##_s = X##_s; \ + if (Y##_e == 0) \ + { \ + /* Y is zero or denormalized. */ \ + if (_FP_FRAC_ZEROP_##wc(Y)) \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \ + _FP_FRAC_COPY_##wc(R, X); \ + goto sub_done; \ + } \ + else \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + ediff--; \ + if (ediff == 0) \ + { \ + _FP_FRAC_SUB_##wc(R, X, Y); \ + goto sub3; \ + } \ + if (X##_e == _FP_EXPMAX_##fs) \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \ + _FP_FRAC_COPY_##wc(R, X); \ + goto sub_done; \ + } \ + goto sub1; \ + } \ + } \ + else if (X##_e == _FP_EXPMAX_##fs) \ + { \ + /* X is NaN or Inf, Y is normal. */ \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \ + _FP_FRAC_COPY_##wc(R, X); \ + goto sub_done; \ + } \ + \ + /* Insert implicit MSB of Y. */ \ + _FP_FRAC_HIGH_##fs(Y) |= _FP_IMPLBIT_SH_##fs; \ + \ + sub1: \ + /* Shift the mantissa of Y to the right EDIFF steps; \ + remember to account later for the implicit MSB of X. */ \ + if (ediff <= _FP_WFRACBITS_##fs) \ + _FP_FRAC_SRS_##wc(Y, ediff, _FP_WFRACBITS_##fs); \ + else if (!_FP_FRAC_ZEROP_##wc(Y)) \ + _FP_FRAC_SET_##wc(Y, _FP_MINFRAC_##wc); \ + _FP_FRAC_SUB_##wc(R, X, Y); \ + } \ + else if (ediff < 0) \ + { \ + ediff = -ediff; \ + R##_e = Y##_e; \ + R##_s = Y##_s; \ + if (X##_e == 0) \ + { \ + /* X is zero or denormalized. */ \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \ + _FP_FRAC_COPY_##wc(R, Y); \ + goto sub_done; \ + } \ + else \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + ediff--; \ + if (ediff == 0) \ + { \ + _FP_FRAC_SUB_##wc(R, Y, X); \ + goto sub3; \ + } \ + if (Y##_e == _FP_EXPMAX_##fs) \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \ + _FP_FRAC_COPY_##wc(R, Y); \ + goto sub_done; \ + } \ + goto sub2; \ + } \ + } \ + else if (Y##_e == _FP_EXPMAX_##fs) \ + { \ + /* Y is NaN or Inf, X is normal. */ \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \ + _FP_FRAC_COPY_##wc(R, Y); \ + goto sub_done; \ + } \ + \ + /* Insert implicit MSB of X. */ \ + _FP_FRAC_HIGH_##fs(X) |= _FP_IMPLBIT_SH_##fs; \ + \ + sub2: \ + /* Shift the mantissa of X to the right EDIFF steps; \ + remember to account later for the implicit MSB of Y. */ \ + if (ediff <= _FP_WFRACBITS_##fs) \ + _FP_FRAC_SRS_##wc(X, ediff, _FP_WFRACBITS_##fs); \ + else if (!_FP_FRAC_ZEROP_##wc(X)) \ + _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \ + _FP_FRAC_SUB_##wc(R, Y, X); \ + } \ + else \ + { \ + /* ediff == 0. */ \ + if (!_FP_EXP_NORMAL(fs, wc, X)) \ + { \ + if (X##_e == 0) \ + { \ + /* X and Y are zero or denormalized. */ \ + R##_e = 0; \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + { \ + _FP_FRAC_COPY_##wc(R, Y); \ + if (_FP_FRAC_ZEROP_##wc(Y)) \ + R##_s = (FP_ROUNDMODE == FP_RND_MINF); \ + else \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + R##_s = Y##_s; \ + } \ + goto sub_done; \ + } \ + else if (_FP_FRAC_ZEROP_##wc(Y)) \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_s = X##_s; \ + goto sub_done; \ + } \ + else \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + _FP_FRAC_SUB_##wc(R, X, Y); \ + R##_s = X##_s; \ + if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \ + { \ + /* |X| < |Y|, negate result. */ \ + _FP_FRAC_SUB_##wc(R, Y, X); \ + R##_s = Y##_s; \ + } \ + else if (_FP_FRAC_ZEROP_##wc(R)) \ + R##_s = (FP_ROUNDMODE == FP_RND_MINF); \ + goto sub_done; \ + } \ + } \ + else \ + { \ + /* X and Y are NaN or Inf, of opposite signs. */ \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \ + _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \ + R##_e = _FP_EXPMAX_##fs; \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + { \ + if (_FP_FRAC_ZEROP_##wc(Y)) \ + { \ + /* Inf - Inf. */ \ + R##_s = _FP_NANSIGN_##fs; \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + _FP_FRAC_SLL_##wc(R, _FP_WORKBITS); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + } \ + else \ + { \ + /* Inf - NaN. */ \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R, Y); \ + } \ + } \ + else \ + { \ + if (_FP_FRAC_ZEROP_##wc(Y)) \ + { \ + /* NaN - Inf. */ \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R, X); \ + } \ + else \ + { \ + /* NaN - NaN. */ \ + _FP_CHOOSENAN_SEMIRAW(fs, wc, R, X, Y, OP); \ + } \ + } \ + goto sub_done; \ + } \ + } \ + /* The exponents of X and Y, both normal, are equal. The \ + implicit MSBs cancel. */ \ + R##_e = X##_e; \ + _FP_FRAC_SUB_##wc(R, X, Y); \ + R##_s = X##_s; \ + if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \ + { \ + /* |X| < |Y|, negate result. */ \ + _FP_FRAC_SUB_##wc(R, Y, X); \ + R##_s = Y##_s; \ + } \ + else if (_FP_FRAC_ZEROP_##wc(R)) \ + { \ + R##_e = 0; \ + R##_s = (FP_ROUNDMODE == FP_RND_MINF); \ + goto sub_done; \ + } \ + goto norm; \ + } \ + sub3: \ + if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \ + { \ + int diff; \ + /* Carry into most significant bit of larger one of X and Y, \ + canceling it; renormalize. */ \ + _FP_FRAC_HIGH_##fs(R) &= _FP_IMPLBIT_SH_##fs - 1; \ + norm: \ + _FP_FRAC_CLZ_##wc(diff, R); \ + diff -= _FP_WFRACXBITS_##fs; \ + _FP_FRAC_SLL_##wc(R, diff); \ + if (R##_e <= diff) \ + { \ + /* R is denormalized. */ \ + diff = diff - R##_e + 1; \ + _FP_FRAC_SRS_##wc(R, diff, _FP_WFRACBITS_##fs); \ + R##_e = 0; \ + } \ + else \ + { \ + R##_e -= diff; \ + _FP_FRAC_HIGH_##fs(R) &= ~(_FP_W_TYPE)_FP_IMPLBIT_SH_##fs; \ + } \ + } \ + sub_done: ; \ + } \ +} while (0) + +#define _FP_ADD(fs, wc, R, X, Y) _FP_ADD_INTERNAL(fs, wc, R, X, Y, '+') +#define _FP_SUB(fs, wc, R, X, Y) \ + do { \ + if (!(Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))) Y##_s ^= 1; \ + _FP_ADD_INTERNAL(fs, wc, R, X, Y, '-'); \ + } while (0) + + +/* + * Main negation routine. FIXME -- when we care about setting exception + * bits reliably, this will not do. We should examine all of the fp classes. + */ + +#define _FP_NEG(fs, wc, R, X) \ + do { \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_c = X##_c; \ + R##_e = X##_e; \ + R##_s = 1 ^ X##_s; \ + } while (0) + + +/* + * Main multiplication routine. The input values should be cooked. + */ + +#define _FP_MUL(fs, wc, R, X, Y) \ +do { \ + R##_s = X##_s ^ Y##_s; \ + switch (_FP_CLS_COMBINE(X##_c, Y##_c)) \ + { \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NORMAL): \ + R##_c = FP_CLS_NORMAL; \ + R##_e = X##_e + Y##_e + 1; \ + \ + _FP_MUL_MEAT_##fs(R,X,Y); \ + \ + if (_FP_FRAC_OVERP_##wc(fs, R)) \ + _FP_FRAC_SRS_##wc(R, 1, _FP_WFRACBITS_##fs); \ + else \ + R##_e--; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NAN): \ + _FP_CHOOSENAN(fs, wc, R, X, Y, '*'); \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \ + R##_s = X##_s; \ + \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO): \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_c = X##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \ + R##_s = Y##_s; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \ + _FP_FRAC_COPY_##wc(R, Y); \ + R##_c = Y##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_INF): \ + R##_s = _FP_NANSIGN_##fs; \ + R##_c = FP_CLS_NAN; \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + break; \ + \ + default: \ + abort(); \ + } \ +} while (0) + + +/* + * Main division routine. The input values should be cooked. + */ + +#define _FP_DIV(fs, wc, R, X, Y) \ +do { \ + R##_s = X##_s ^ Y##_s; \ + switch (_FP_CLS_COMBINE(X##_c, Y##_c)) \ + { \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NORMAL): \ + R##_c = FP_CLS_NORMAL; \ + R##_e = X##_e - Y##_e; \ + \ + _FP_DIV_MEAT_##fs(R,X,Y); \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NAN): \ + _FP_CHOOSENAN(fs, wc, R, X, Y, '/'); \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_c = X##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R, Y); \ + R##_c = Y##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NORMAL): \ + R##_c = FP_CLS_ZERO; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \ + FP_SET_EXCEPTION(FP_EX_DIVZERO); \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \ + R##_c = FP_CLS_INF; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO): \ + R##_s = _FP_NANSIGN_##fs; \ + R##_c = FP_CLS_NAN; \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + break; \ + \ + default: \ + abort(); \ + } \ +} while (0) + + +/* + * Main differential comparison routine. The inputs should be raw not + * cooked. The return is -1,0,1 for normal values, 2 otherwise. + */ + +#define _FP_CMP(fs, wc, ret, X, Y, un) \ + do { \ + /* NANs are unordered */ \ + if ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \ + || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))) \ + { \ + ret = un; \ + } \ + else \ + { \ + int __is_zero_x; \ + int __is_zero_y; \ + \ + __is_zero_x = (!X##_e && _FP_FRAC_ZEROP_##wc(X)) ? 1 : 0; \ + __is_zero_y = (!Y##_e && _FP_FRAC_ZEROP_##wc(Y)) ? 1 : 0; \ + \ + if (__is_zero_x && __is_zero_y) \ + ret = 0; \ + else if (__is_zero_x) \ + ret = Y##_s ? 1 : -1; \ + else if (__is_zero_y) \ + ret = X##_s ? -1 : 1; \ + else if (X##_s != Y##_s) \ + ret = X##_s ? -1 : 1; \ + else if (X##_e > Y##_e) \ + ret = X##_s ? -1 : 1; \ + else if (X##_e < Y##_e) \ + ret = X##_s ? 1 : -1; \ + else if (_FP_FRAC_GT_##wc(X, Y)) \ + ret = X##_s ? -1 : 1; \ + else if (_FP_FRAC_GT_##wc(Y, X)) \ + ret = X##_s ? 1 : -1; \ + else \ + ret = 0; \ + } \ + } while (0) + + +/* Simplification for strict equality. */ + +#define _FP_CMP_EQ(fs, wc, ret, X, Y) \ + do { \ + /* NANs are unordered */ \ + if ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \ + || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))) \ + { \ + ret = 1; \ + } \ + else \ + { \ + ret = !(X##_e == Y##_e \ + && _FP_FRAC_EQ_##wc(X, Y) \ + && (X##_s == Y##_s || (!X##_e && _FP_FRAC_ZEROP_##wc(X)))); \ + } \ + } while (0) + +/* Version to test unordered. */ + +#define _FP_CMP_UNORD(fs, wc, ret, X, Y) \ + do { \ + ret = ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \ + || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))); \ + } while (0) + +/* + * Main square root routine. The input value should be cooked. + */ + +#define _FP_SQRT(fs, wc, R, X) \ +do { \ + _FP_FRAC_DECL_##wc(T); _FP_FRAC_DECL_##wc(S); \ + _FP_W_TYPE q; \ + switch (X##_c) \ + { \ + case FP_CLS_NAN: \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_s = X##_s; \ + R##_c = FP_CLS_NAN; \ + break; \ + case FP_CLS_INF: \ + if (X##_s) \ + { \ + R##_s = _FP_NANSIGN_##fs; \ + R##_c = FP_CLS_NAN; /* NAN */ \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + } \ + else \ + { \ + R##_s = 0; \ + R##_c = FP_CLS_INF; /* sqrt(+inf) = +inf */ \ + } \ + break; \ + case FP_CLS_ZERO: \ + R##_s = X##_s; \ + R##_c = FP_CLS_ZERO; /* sqrt(+-0) = +-0 */ \ + break; \ + case FP_CLS_NORMAL: \ + R##_s = 0; \ + if (X##_s) \ + { \ + R##_c = FP_CLS_NAN; /* sNAN */ \ + R##_s = _FP_NANSIGN_##fs; \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + break; \ + } \ + R##_c = FP_CLS_NORMAL; \ + if (X##_e & 1) \ + _FP_FRAC_SLL_##wc(X, 1); \ + R##_e = X##_e >> 1; \ + _FP_FRAC_SET_##wc(S, _FP_ZEROFRAC_##wc); \ + _FP_FRAC_SET_##wc(R, _FP_ZEROFRAC_##wc); \ + q = _FP_OVERFLOW_##fs >> 1; \ + _FP_SQRT_MEAT_##wc(R, S, T, X, q); \ + } \ + } while (0) + +/* + * Convert from FP to integer. Input is raw. + */ + +/* RSIGNED can have following values: + * 0: the number is required to be 0..(2^rsize)-1, if not, NV is set plus + * the result is either 0 or (2^rsize)-1 depending on the sign in such + * case. + * 1: the number is required to be -(2^(rsize-1))..(2^(rsize-1))-1, if not, + * NV is set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1 + * depending on the sign in such case. + * -1: the number is required to be -(2^(rsize-1))..(2^rsize)-1, if not, NV is + * set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1 + * depending on the sign in such case. + */ +#define _FP_TO_INT(fs, wc, r, X, rsize, rsigned) \ +do { \ + if (X##_e < _FP_EXPBIAS_##fs) \ + { \ + r = 0; \ + if (X##_e == 0) \ + { \ + if (!_FP_FRAC_ZEROP_##wc(X)) \ + { \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + } \ + } \ + else \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + } \ + else if (X##_e >= _FP_EXPBIAS_##fs + rsize - (rsigned > 0 || X##_s) \ + || (!rsigned && X##_s)) \ + { \ + /* Overflow or converting to the most negative integer. */ \ + if (rsigned) \ + { \ + r = 1; \ + r <<= rsize - 1; \ + r -= 1 - X##_s; \ + } else { \ + r = 0; \ + if (X##_s) \ + r = ~r; \ + } \ + \ + if (rsigned && X##_s && X##_e == _FP_EXPBIAS_##fs + rsize - 1) \ + { \ + /* Possibly converting to most negative integer; check the \ + mantissa. */ \ + int inexact = 0; \ + (void)((_FP_FRACBITS_##fs > rsize) \ + ? ({ _FP_FRAC_SRST_##wc(X, inexact, \ + _FP_FRACBITS_##fs - rsize, \ + _FP_FRACBITS_##fs); 0; }) \ + : 0); \ + if (!_FP_FRAC_ZEROP_##wc(X)) \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + else if (inexact) \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + } \ + else \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + } \ + else \ + { \ + _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_IMPLBIT_##fs; \ + if (X##_e >= _FP_EXPBIAS_##fs + _FP_FRACBITS_##fs - 1) \ + { \ + _FP_FRAC_ASSEMBLE_##wc(r, X, rsize); \ + r <<= X##_e - _FP_EXPBIAS_##fs - _FP_FRACBITS_##fs + 1; \ + } \ + else \ + { \ + int inexact; \ + _FP_FRAC_SRST_##wc(X, inexact, \ + (_FP_FRACBITS_##fs + _FP_EXPBIAS_##fs - 1 \ + - X##_e), \ + _FP_FRACBITS_##fs); \ + if (inexact) \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + _FP_FRAC_ASSEMBLE_##wc(r, X, rsize); \ + } \ + if (rsigned && X##_s) \ + r = -r; \ + } \ +} while (0) + +/* Convert integer to fp. Output is raw. RTYPE is unsigned even if + input is signed. */ +#define _FP_FROM_INT(fs, wc, X, r, rsize, rtype) \ + do { \ + if (r) \ + { \ + rtype ur_; \ + \ + if ((X##_s = (r < 0))) \ + r = -(rtype)r; \ + \ + ur_ = (rtype) r; \ + (void)((rsize <= _FP_W_TYPE_SIZE) \ + ? ({ \ + int lz_; \ + __FP_CLZ(lz_, (_FP_W_TYPE)ur_); \ + X##_e = _FP_EXPBIAS_##fs + _FP_W_TYPE_SIZE - 1 - lz_; \ + }) \ + : ((rsize <= 2 * _FP_W_TYPE_SIZE) \ + ? ({ \ + int lz_; \ + __FP_CLZ_2(lz_, (_FP_W_TYPE)(ur_ >> _FP_W_TYPE_SIZE), \ + (_FP_W_TYPE)ur_); \ + X##_e = (_FP_EXPBIAS_##fs + 2 * _FP_W_TYPE_SIZE - 1 \ + - lz_); \ + }) \ + : (abort(), 0))); \ + \ + if (rsize - 1 + _FP_EXPBIAS_##fs >= _FP_EXPMAX_##fs \ + && X##_e >= _FP_EXPMAX_##fs) \ + { \ + /* Exponent too big; overflow to infinity. (May also \ + happen after rounding below.) */ \ + _FP_OVERFLOW_SEMIRAW(fs, wc, X); \ + goto pack_semiraw; \ + } \ + \ + if (rsize <= _FP_FRACBITS_##fs \ + || X##_e < _FP_EXPBIAS_##fs + _FP_FRACBITS_##fs) \ + { \ + /* Exactly representable; shift left. */ \ + _FP_FRAC_DISASSEMBLE_##wc(X, ur_, rsize); \ + _FP_FRAC_SLL_##wc(X, (_FP_EXPBIAS_##fs \ + + _FP_FRACBITS_##fs - 1 - X##_e)); \ + } \ + else \ + { \ + /* More bits in integer than in floating type; need to \ + round. */ \ + if (_FP_EXPBIAS_##fs + _FP_WFRACBITS_##fs - 1 < X##_e) \ + ur_ = ((ur_ >> (X##_e - _FP_EXPBIAS_##fs \ + - _FP_WFRACBITS_##fs + 1)) \ + | ((ur_ << (rsize - (X##_e - _FP_EXPBIAS_##fs \ + - _FP_WFRACBITS_##fs + 1))) \ + != 0)); \ + _FP_FRAC_DISASSEMBLE_##wc(X, ur_, rsize); \ + if ((_FP_EXPBIAS_##fs + _FP_WFRACBITS_##fs - 1 - X##_e) > 0) \ + _FP_FRAC_SLL_##wc(X, (_FP_EXPBIAS_##fs \ + + _FP_WFRACBITS_##fs - 1 - X##_e)); \ + _FP_FRAC_HIGH_##fs(X) &= ~(_FP_W_TYPE)_FP_IMPLBIT_SH_##fs; \ + pack_semiraw: \ + _FP_PACK_SEMIRAW(fs, wc, X); \ + } \ + } \ + else \ + { \ + X##_s = 0; \ + X##_e = 0; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + } \ + } while (0) + + +/* Extend from a narrower floating-point format to a wider one. Input + and output are raw. */ +#define FP_EXTEND(dfs,sfs,dwc,swc,D,S) \ +do { \ + if (_FP_FRACBITS_##dfs < _FP_FRACBITS_##sfs \ + || (_FP_EXPMAX_##dfs - _FP_EXPBIAS_##dfs \ + < _FP_EXPMAX_##sfs - _FP_EXPBIAS_##sfs) \ + || (_FP_EXPBIAS_##dfs < _FP_EXPBIAS_##sfs + _FP_FRACBITS_##sfs - 1 \ + && _FP_EXPBIAS_##dfs != _FP_EXPBIAS_##sfs)) \ + abort(); \ + D##_s = S##_s; \ + _FP_FRAC_COPY_##dwc##_##swc(D, S); \ + if (_FP_EXP_NORMAL(sfs, swc, S)) \ + { \ + D##_e = S##_e + _FP_EXPBIAS_##dfs - _FP_EXPBIAS_##sfs; \ + _FP_FRAC_SLL_##dwc(D, (_FP_FRACBITS_##dfs - _FP_FRACBITS_##sfs)); \ + } \ + else \ + { \ + if (S##_e == 0) \ + { \ + if (_FP_FRAC_ZEROP_##swc(S)) \ + D##_e = 0; \ + else if (_FP_EXPBIAS_##dfs \ + < _FP_EXPBIAS_##sfs + _FP_FRACBITS_##sfs - 1) \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + _FP_FRAC_SLL_##dwc(D, (_FP_FRACBITS_##dfs \ + - _FP_FRACBITS_##sfs)); \ + D##_e = 0; \ + } \ + else \ + { \ + int _lz; \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + _FP_FRAC_CLZ_##swc(_lz, S); \ + _FP_FRAC_SLL_##dwc(D, \ + _lz + _FP_FRACBITS_##dfs \ + - _FP_FRACTBITS_##sfs); \ + D##_e = (_FP_EXPBIAS_##dfs - _FP_EXPBIAS_##sfs + 1 \ + + _FP_FRACXBITS_##sfs - _lz); \ + } \ + } \ + else \ + { \ + D##_e = _FP_EXPMAX_##dfs; \ + if (!_FP_FRAC_ZEROP_##swc(S)) \ + { \ + if (!(_FP_FRAC_HIGH_RAW_##sfs(S) & _FP_QNANBIT_##sfs)) \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + _FP_FRAC_SLL_##dwc(D, (_FP_FRACBITS_##dfs \ + - _FP_FRACBITS_##sfs)); \ + } \ + } \ + } \ +} while (0) + +/* Truncate from a wider floating-point format to a narrower one. + Input and output are semi-raw. */ +#define FP_TRUNC(dfs,sfs,dwc,swc,D,S) \ +do { \ + if (_FP_FRACBITS_##sfs < _FP_FRACBITS_##dfs \ + || (_FP_EXPBIAS_##sfs < _FP_EXPBIAS_##dfs + _FP_FRACBITS_##dfs - 1 \ + && _FP_EXPBIAS_##sfs != _FP_EXPBIAS_##dfs)) \ + abort(); \ + D##_s = S##_s; \ + if (_FP_EXP_NORMAL(sfs, swc, S)) \ + { \ + D##_e = S##_e + _FP_EXPBIAS_##dfs - _FP_EXPBIAS_##sfs; \ + if (D##_e >= _FP_EXPMAX_##dfs) \ + _FP_OVERFLOW_SEMIRAW(dfs, dwc, D); \ + else \ + { \ + if (D##_e <= 0) \ + { \ + if (D##_e < 1 - _FP_FRACBITS_##dfs) \ + { \ + _FP_FRAC_SET_##swc(S, _FP_ZEROFRAC_##swc); \ + _FP_FRAC_LOW_##swc(S) |= 1; \ + } \ + else \ + { \ + _FP_FRAC_HIGH_##sfs(S) |= _FP_IMPLBIT_SH_##sfs; \ + _FP_FRAC_SRS_##swc(S, (_FP_WFRACBITS_##sfs \ + - _FP_WFRACBITS_##dfs + 1 - D##_e), \ + _FP_WFRACBITS_##sfs); \ + } \ + D##_e = 0; \ + } \ + else \ + _FP_FRAC_SRS_##swc(S, (_FP_WFRACBITS_##sfs \ + - _FP_WFRACBITS_##dfs), \ + _FP_WFRACBITS_##sfs); \ + _FP_FRAC_COPY_##dwc##_##swc(D, S); \ + } \ + } \ + else \ + { \ + if (S##_e == 0) \ + { \ + D##_e = 0; \ + if (_FP_FRAC_ZEROP_##swc(S)) \ + _FP_FRAC_SET_##dwc(D, _FP_ZEROFRAC_##dwc); \ + else \ + { \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + if (_FP_EXPBIAS_##sfs \ + < _FP_EXPBIAS_##dfs + _FP_FRACBITS_##dfs - 1) \ + { \ + _FP_FRAC_SRS_##swc(S, (_FP_WFRACBITS_##sfs \ + - _FP_WFRACBITS_##dfs), \ + _FP_WFRACBITS_##sfs); \ + _FP_FRAC_COPY_##dwc##_##swc(D, S); \ + } \ + else \ + { \ + _FP_FRAC_SET_##dwc(D, _FP_ZEROFRAC_##dwc); \ + _FP_FRAC_LOW_##dwc(D) |= 1; \ + } \ + } \ + } \ + else \ + { \ + D##_e = _FP_EXPMAX_##dfs; \ + if (_FP_FRAC_ZEROP_##swc(S)) \ + _FP_FRAC_SET_##dwc(D, _FP_ZEROFRAC_##dwc); \ + else \ + { \ + _FP_CHECK_SIGNAN_SEMIRAW(sfs, swc, S); \ + _FP_FRAC_SRL_##swc(S, (_FP_WFRACBITS_##sfs \ + - _FP_WFRACBITS_##dfs)); \ + _FP_FRAC_COPY_##dwc##_##swc(D, S); \ + /* Semi-raw NaN must have all workbits cleared. */ \ + _FP_FRAC_LOW_##dwc(D) \ + &= ~(_FP_W_TYPE) ((1 << _FP_WORKBITS) - 1); \ + _FP_FRAC_HIGH_##dfs(D) |= _FP_QNANBIT_SH_##dfs; \ + } \ + } \ + } \ +} while (0) + +/* + * Helper primitives. + */ + +/* Count leading zeros in a word. */ + +#ifndef __FP_CLZ +/* GCC 3.4 and later provide the builtins for us. */ +#define __FP_CLZ(r, x) \ + do { \ + if (sizeof (_FP_W_TYPE) == sizeof (unsigned int)) \ + r = __builtin_clz (x); \ + else if (sizeof (_FP_W_TYPE) == sizeof (unsigned long)) \ + r = __builtin_clzl (x); \ + else if (sizeof (_FP_W_TYPE) == sizeof (unsigned long long)) \ + r = __builtin_clzll (x); \ + else \ + abort (); \ + } while (0) +#endif /* ndef __FP_CLZ */ + +#define _FP_DIV_HELP_imm(q, r, n, d) \ + do { \ + q = n / d, r = n % d; \ + } while (0) + + +/* A restoring bit-by-bit division primitive. */ + +#define _FP_DIV_MEAT_N_loop(fs, wc, R, X, Y) \ + do { \ + int count = _FP_WFRACBITS_##fs; \ + _FP_FRAC_DECL_##wc (u); \ + _FP_FRAC_DECL_##wc (v); \ + _FP_FRAC_COPY_##wc (u, X); \ + _FP_FRAC_COPY_##wc (v, Y); \ + _FP_FRAC_SET_##wc (R, _FP_ZEROFRAC_##wc); \ + /* Normalize U and V. */ \ + _FP_FRAC_SLL_##wc (u, _FP_WFRACXBITS_##fs); \ + _FP_FRAC_SLL_##wc (v, _FP_WFRACXBITS_##fs); \ + /* First round. Since the operands are normalized, either the \ + first or second bit will be set in the fraction. Produce a \ + normalized result by checking which and adjusting the loop \ + count and exponent accordingly. */ \ + if (_FP_FRAC_GE_1 (u, v)) \ + { \ + _FP_FRAC_SUB_##wc (u, u, v); \ + _FP_FRAC_LOW_##wc (R) |= 1; \ + count--; \ + } \ + else \ + R##_e--; \ + /* Subsequent rounds. */ \ + do { \ + int msb = (_FP_WS_TYPE) _FP_FRAC_HIGH_##wc (u) < 0; \ + _FP_FRAC_SLL_##wc (u, 1); \ + _FP_FRAC_SLL_##wc (R, 1); \ + if (msb || _FP_FRAC_GE_1 (u, v)) \ + { \ + _FP_FRAC_SUB_##wc (u, u, v); \ + _FP_FRAC_LOW_##wc (R) |= 1; \ + } \ + } while (--count > 0); \ + /* If there's anything left in U, the result is inexact. */ \ + _FP_FRAC_LOW_##wc (R) |= !_FP_FRAC_ZEROP_##wc (u); \ + } while (0) + +#define _FP_DIV_MEAT_1_loop(fs, R, X, Y) _FP_DIV_MEAT_N_loop (fs, 1, R, X, Y) +#define _FP_DIV_MEAT_2_loop(fs, R, X, Y) _FP_DIV_MEAT_N_loop (fs, 2, R, X, Y) +#define _FP_DIV_MEAT_4_loop(fs, R, X, Y) _FP_DIV_MEAT_N_loop (fs, 4, R, X, Y) diff --git a/libgcc/soft-fp/quad.h b/libgcc/soft-fp/quad.h new file mode 100644 index 00000000000..c22e944029f --- /dev/null +++ b/libgcc/soft-fp/quad.h @@ -0,0 +1,271 @@ +/* Software floating-point emulation. + Definitions for IEEE Quad Precision. + Copyright (C) 1997,1998,1999,2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#if _FP_W_TYPE_SIZE < 32 +#error "Here's a nickel, kid. Go buy yourself a real computer." +#endif + +#if _FP_W_TYPE_SIZE < 64 +#define _FP_FRACTBITS_Q (4*_FP_W_TYPE_SIZE) +#else +#define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE) +#endif + +#define _FP_FRACBITS_Q 113 +#define _FP_FRACXBITS_Q (_FP_FRACTBITS_Q - _FP_FRACBITS_Q) +#define _FP_WFRACBITS_Q (_FP_WORKBITS + _FP_FRACBITS_Q) +#define _FP_WFRACXBITS_Q (_FP_FRACTBITS_Q - _FP_WFRACBITS_Q) +#define _FP_EXPBITS_Q 15 +#define _FP_EXPBIAS_Q 16383 +#define _FP_EXPMAX_Q 32767 + +#define _FP_QNANBIT_Q \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE) +#define _FP_QNANBIT_SH_Q \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_Q \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_SH_Q \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE) +#define _FP_OVERFLOW_Q \ + ((_FP_W_TYPE)1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE)) + +typedef float TFtype __attribute__((mode(TF))); + +#if _FP_W_TYPE_SIZE < 64 + +union _FP_UNION_Q +{ + TFtype flt; + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_Q; + unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); + unsigned long frac2 : _FP_W_TYPE_SIZE; + unsigned long frac1 : _FP_W_TYPE_SIZE; + unsigned long frac0 : _FP_W_TYPE_SIZE; +#else + unsigned long frac0 : _FP_W_TYPE_SIZE; + unsigned long frac1 : _FP_W_TYPE_SIZE; + unsigned long frac2 : _FP_W_TYPE_SIZE; + unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); + unsigned exp : _FP_EXPBITS_Q; + unsigned sign : 1; +#endif /* not bigendian */ + } bits __attribute__((packed)); +}; + + +#define FP_DECL_Q(X) _FP_DECL(4,X) +#define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_4(Q,X,val) +#define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_4_P(Q,X,val) +#define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_4(Q,val,X) +#define FP_PACK_RAW_QP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_4_P(Q,val,X); \ + } while (0) + +#define FP_UNPACK_Q(X,val) \ + do { \ + _FP_UNPACK_RAW_4(Q,X,val); \ + _FP_UNPACK_CANONICAL(Q,4,X); \ + } while (0) + +#define FP_UNPACK_QP(X,val) \ + do { \ + _FP_UNPACK_RAW_4_P(Q,X,val); \ + _FP_UNPACK_CANONICAL(Q,4,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_Q(X,val) \ + do { \ + _FP_UNPACK_RAW_4(Q,X,val); \ + _FP_UNPACK_SEMIRAW(Q,4,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_QP(X,val) \ + do { \ + _FP_UNPACK_RAW_4_P(Q,X,val); \ + _FP_UNPACK_SEMIRAW(Q,4,X); \ + } while (0) + +#define FP_PACK_Q(val,X) \ + do { \ + _FP_PACK_CANONICAL(Q,4,X); \ + _FP_PACK_RAW_4(Q,val,X); \ + } while (0) + +#define FP_PACK_QP(val,X) \ + do { \ + _FP_PACK_CANONICAL(Q,4,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_4_P(Q,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_Q(val,X) \ + do { \ + _FP_PACK_SEMIRAW(Q,4,X); \ + _FP_PACK_RAW_4(Q,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_QP(val,X) \ + do { \ + _FP_PACK_SEMIRAW(Q,4,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_4_P(Q,val,X); \ + } while (0) + +#define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,4,X) +#define FP_NEG_Q(R,X) _FP_NEG(Q,4,R,X) +#define FP_ADD_Q(R,X,Y) _FP_ADD(Q,4,R,X,Y) +#define FP_SUB_Q(R,X,Y) _FP_SUB(Q,4,R,X,Y) +#define FP_MUL_Q(R,X,Y) _FP_MUL(Q,4,R,X,Y) +#define FP_DIV_Q(R,X,Y) _FP_DIV(Q,4,R,X,Y) +#define FP_SQRT_Q(R,X) _FP_SQRT(Q,4,R,X) +#define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_4(R,S,T,X,Q) + +#define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,4,r,X,Y,un) +#define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,4,r,X,Y) +#define FP_CMP_UNORD_Q(r,X,Y) _FP_CMP_UNORD(Q,4,r,X,Y) + +#define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,4,r,X,rsz,rsg) +#define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,4,X,r,rs,rt) + +#define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_4(X) +#define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_4(X) + +#else /* not _FP_W_TYPE_SIZE < 64 */ +union _FP_UNION_Q +{ + TFtype flt /* __attribute__((mode(TF))) */ ; + struct { + _FP_W_TYPE a, b; + } longs; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_Q; + _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE; + _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE; +#else + _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE; + _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE; + unsigned exp : _FP_EXPBITS_Q; + unsigned sign : 1; +#endif + } bits; +}; + +#define FP_DECL_Q(X) _FP_DECL(2,X) +#define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_2(Q,X,val) +#define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_2_P(Q,X,val) +#define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_2(Q,val,X) +#define FP_PACK_RAW_QP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(Q,val,X); \ + } while (0) + +#define FP_UNPACK_Q(X,val) \ + do { \ + _FP_UNPACK_RAW_2(Q,X,val); \ + _FP_UNPACK_CANONICAL(Q,2,X); \ + } while (0) + +#define FP_UNPACK_QP(X,val) \ + do { \ + _FP_UNPACK_RAW_2_P(Q,X,val); \ + _FP_UNPACK_CANONICAL(Q,2,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_Q(X,val) \ + do { \ + _FP_UNPACK_RAW_2(Q,X,val); \ + _FP_UNPACK_SEMIRAW(Q,2,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_QP(X,val) \ + do { \ + _FP_UNPACK_RAW_2_P(Q,X,val); \ + _FP_UNPACK_SEMIRAW(Q,2,X); \ + } while (0) + +#define FP_PACK_Q(val,X) \ + do { \ + _FP_PACK_CANONICAL(Q,2,X); \ + _FP_PACK_RAW_2(Q,val,X); \ + } while (0) + +#define FP_PACK_QP(val,X) \ + do { \ + _FP_PACK_CANONICAL(Q,2,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(Q,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_Q(val,X) \ + do { \ + _FP_PACK_SEMIRAW(Q,2,X); \ + _FP_PACK_RAW_2(Q,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_QP(val,X) \ + do { \ + _FP_PACK_SEMIRAW(Q,2,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(Q,val,X); \ + } while (0) + +#define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,2,X) +#define FP_NEG_Q(R,X) _FP_NEG(Q,2,R,X) +#define FP_ADD_Q(R,X,Y) _FP_ADD(Q,2,R,X,Y) +#define FP_SUB_Q(R,X,Y) _FP_SUB(Q,2,R,X,Y) +#define FP_MUL_Q(R,X,Y) _FP_MUL(Q,2,R,X,Y) +#define FP_DIV_Q(R,X,Y) _FP_DIV(Q,2,R,X,Y) +#define FP_SQRT_Q(R,X) _FP_SQRT(Q,2,R,X) +#define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q) + +#define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,2,r,X,Y,un) +#define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,2,r,X,Y) +#define FP_CMP_UNORD_Q(r,X,Y) _FP_CMP_UNORD(Q,2,r,X,Y) + +#define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,2,r,X,rsz,rsg) +#define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,2,X,r,rs,rt) + +#define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_2(X) +#define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_2(X) + +#endif /* not _FP_W_TYPE_SIZE < 64 */ diff --git a/libgcc/soft-fp/single.h b/libgcc/soft-fp/single.h new file mode 100644 index 00000000000..9c3734adf48 --- /dev/null +++ b/libgcc/soft-fp/single.h @@ -0,0 +1,151 @@ +/* Software floating-point emulation. + Definitions for IEEE Single Precision. + Copyright (C) 1997,1998,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#if _FP_W_TYPE_SIZE < 32 +#error "Here's a nickel kid. Go buy yourself a real computer." +#endif + +#define _FP_FRACTBITS_S _FP_W_TYPE_SIZE + +#define _FP_FRACBITS_S 24 +#define _FP_FRACXBITS_S (_FP_FRACTBITS_S - _FP_FRACBITS_S) +#define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S) +#define _FP_WFRACXBITS_S (_FP_FRACTBITS_S - _FP_WFRACBITS_S) +#define _FP_EXPBITS_S 8 +#define _FP_EXPBIAS_S 127 +#define _FP_EXPMAX_S 255 +#define _FP_QNANBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2)) +#define _FP_QNANBIT_SH_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2+_FP_WORKBITS)) +#define _FP_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1)) +#define _FP_IMPLBIT_SH_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1+_FP_WORKBITS)) +#define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S)) + +/* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be + chosen by the target machine. */ + +typedef float SFtype __attribute__((mode(SF))); + +union _FP_UNION_S +{ + SFtype flt; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_S; + unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0); +#else + unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0); + unsigned exp : _FP_EXPBITS_S; + unsigned sign : 1; +#endif + } bits __attribute__((packed)); +}; + +#define FP_DECL_S(X) _FP_DECL(1,X) +#define FP_UNPACK_RAW_S(X,val) _FP_UNPACK_RAW_1(S,X,val) +#define FP_UNPACK_RAW_SP(X,val) _FP_UNPACK_RAW_1_P(S,X,val) +#define FP_PACK_RAW_S(val,X) _FP_PACK_RAW_1(S,val,X) +#define FP_PACK_RAW_SP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(S,val,X); \ + } while (0) + +#define FP_UNPACK_S(X,val) \ + do { \ + _FP_UNPACK_RAW_1(S,X,val); \ + _FP_UNPACK_CANONICAL(S,1,X); \ + } while (0) + +#define FP_UNPACK_SP(X,val) \ + do { \ + _FP_UNPACK_RAW_1_P(S,X,val); \ + _FP_UNPACK_CANONICAL(S,1,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_S(X,val) \ + do { \ + _FP_UNPACK_RAW_1(S,X,val); \ + _FP_UNPACK_SEMIRAW(S,1,X); \ + } while (0) + +#define FP_UNPACK_SEMIRAW_SP(X,val) \ + do { \ + _FP_UNPACK_RAW_1_P(S,X,val); \ + _FP_UNPACK_SEMIRAW(S,1,X); \ + } while (0) + +#define FP_PACK_S(val,X) \ + do { \ + _FP_PACK_CANONICAL(S,1,X); \ + _FP_PACK_RAW_1(S,val,X); \ + } while (0) + +#define FP_PACK_SP(val,X) \ + do { \ + _FP_PACK_CANONICAL(S,1,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(S,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_S(val,X) \ + do { \ + _FP_PACK_SEMIRAW(S,1,X); \ + _FP_PACK_RAW_1(S,val,X); \ + } while (0) + +#define FP_PACK_SEMIRAW_SP(val,X) \ + do { \ + _FP_PACK_SEMIRAW(S,1,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(S,val,X); \ + } while (0) + +#define FP_ISSIGNAN_S(X) _FP_ISSIGNAN(S,1,X) +#define FP_NEG_S(R,X) _FP_NEG(S,1,R,X) +#define FP_ADD_S(R,X,Y) _FP_ADD(S,1,R,X,Y) +#define FP_SUB_S(R,X,Y) _FP_SUB(S,1,R,X,Y) +#define FP_MUL_S(R,X,Y) _FP_MUL(S,1,R,X,Y) +#define FP_DIV_S(R,X,Y) _FP_DIV(S,1,R,X,Y) +#define FP_SQRT_S(R,X) _FP_SQRT(S,1,R,X) +#define _FP_SQRT_MEAT_S(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q) + +#define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1,r,X,Y,un) +#define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1,r,X,Y) +#define FP_CMP_UNORD_S(r,X,Y) _FP_CMP_UNORD(S,1,r,X,Y) + +#define FP_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1,r,X,rsz,rsg) +#define FP_FROM_INT_S(X,r,rs,rt) _FP_FROM_INT(S,1,X,r,rs,rt) + +#define _FP_FRAC_HIGH_S(X) _FP_FRAC_HIGH_1(X) +#define _FP_FRAC_HIGH_RAW_S(X) _FP_FRAC_HIGH_1(X) diff --git a/libgcc/soft-fp/soft-fp.h b/libgcc/soft-fp/soft-fp.h new file mode 100644 index 00000000000..23073573468 --- /dev/null +++ b/libgcc/soft-fp/soft-fp.h @@ -0,0 +1,213 @@ +/* Software floating-point emulation. + Copyright (C) 1997,1998,1999,2000,2002,2003,2005,2006 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#ifndef SOFT_FP_H +#define SOFT_FP_H + +#ifdef _LIBC +#include <sfp-machine.h> +#else +#include "sfp-machine.h" +#endif + +/* Allow sfp-machine to have its own byte order definitions. */ +#ifndef __BYTE_ORDER +#ifdef _LIBC +#include <endian.h> +#else +#error "endianness not defined by sfp-machine.h" +#endif +#endif + +#define _FP_WORKBITS 3 +#define _FP_WORK_LSB ((_FP_W_TYPE)1 << 3) +#define _FP_WORK_ROUND ((_FP_W_TYPE)1 << 2) +#define _FP_WORK_GUARD ((_FP_W_TYPE)1 << 1) +#define _FP_WORK_STICKY ((_FP_W_TYPE)1 << 0) + +#ifndef FP_RND_NEAREST +# define FP_RND_NEAREST 0 +# define FP_RND_ZERO 1 +# define FP_RND_PINF 2 +# define FP_RND_MINF 3 +#endif +#ifndef FP_ROUNDMODE +# define FP_ROUNDMODE FP_RND_NEAREST +#endif + +/* By default don't care about exceptions. */ +#ifndef FP_EX_INVALID +#define FP_EX_INVALID 0 +#endif +#ifndef FP_EX_OVERFLOW +#define FP_EX_OVERFLOW 0 +#endif +#ifndef FP_EX_UNDERFLOW +#define FP_EX_UNDERFLOW 0 +#endif +#ifndef FP_EX_DIVZERO +#define FP_EX_DIVZERO 0 +#endif +#ifndef FP_EX_INEXACT +#define FP_EX_INEXACT 0 +#endif +#ifndef FP_EX_DENORM +#define FP_EX_DENORM 0 +#endif + +#ifdef _FP_DECL_EX +#define FP_DECL_EX \ + int _fex = 0; \ + _FP_DECL_EX +#else +#define FP_DECL_EX int _fex = 0 +#endif + +#ifndef FP_INIT_ROUNDMODE +#define FP_INIT_ROUNDMODE do {} while (0) +#endif + +#ifndef FP_HANDLE_EXCEPTIONS +#define FP_HANDLE_EXCEPTIONS do {} while (0) +#endif + +#ifndef FP_INHIBIT_RESULTS +/* By default we write the results always. + * sfp-machine may override this and e.g. + * check if some exceptions are unmasked + * and inhibit it in such a case. + */ +#define FP_INHIBIT_RESULTS 0 +#endif + +#define FP_SET_EXCEPTION(ex) \ + _fex |= (ex) + +#define FP_UNSET_EXCEPTION(ex) \ + _fex &= ~(ex) + +#define FP_CLEAR_EXCEPTIONS \ + _fex = 0 + +#define _FP_ROUND_NEAREST(wc, X) \ +do { \ + if ((_FP_FRAC_LOW_##wc(X) & 15) != _FP_WORK_ROUND) \ + _FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \ +} while (0) + +#define _FP_ROUND_ZERO(wc, X) (void)0 + +#define _FP_ROUND_PINF(wc, X) \ +do { \ + if (!X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \ + _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \ +} while (0) + +#define _FP_ROUND_MINF(wc, X) \ +do { \ + if (X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \ + _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \ +} while (0) + +#define _FP_ROUND(wc, X) \ +do { \ + if (_FP_FRAC_LOW_##wc(X) & 7) \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + switch (FP_ROUNDMODE) \ + { \ + case FP_RND_NEAREST: \ + _FP_ROUND_NEAREST(wc,X); \ + break; \ + case FP_RND_ZERO: \ + _FP_ROUND_ZERO(wc,X); \ + break; \ + case FP_RND_PINF: \ + _FP_ROUND_PINF(wc,X); \ + break; \ + case FP_RND_MINF: \ + _FP_ROUND_MINF(wc,X); \ + break; \ + } \ +} while (0) + +#define FP_CLS_NORMAL 0 +#define FP_CLS_ZERO 1 +#define FP_CLS_INF 2 +#define FP_CLS_NAN 3 + +#define _FP_CLS_COMBINE(x,y) (((x) << 2) | (y)) + +#include "op-1.h" +#include "op-2.h" +#include "op-4.h" +#include "op-8.h" +#include "op-common.h" + +/* Sigh. Silly things longlong.h needs. */ +#define UWtype _FP_W_TYPE +#define W_TYPE_SIZE _FP_W_TYPE_SIZE + +typedef int QItype __attribute__((mode(QI))); +typedef int SItype __attribute__((mode(SI))); +typedef int DItype __attribute__((mode(DI))); +typedef unsigned int UQItype __attribute__((mode(QI))); +typedef unsigned int USItype __attribute__((mode(SI))); +typedef unsigned int UDItype __attribute__((mode(DI))); +#if _FP_W_TYPE_SIZE == 32 +typedef unsigned int UHWtype __attribute__((mode(HI))); +#elif _FP_W_TYPE_SIZE == 64 +typedef USItype UHWtype; +#endif + +#ifndef CMPtype +#define CMPtype int +#endif + +#define SI_BITS (__CHAR_BIT__ * (int)sizeof(SItype)) +#define DI_BITS (__CHAR_BIT__ * (int)sizeof(DItype)) + +#ifndef umul_ppmm +#ifdef _LIBC +#include <stdlib/longlong.h> +#else +#include "longlong.h" +#endif +#endif + +#ifdef _LIBC +#include <stdlib.h> +#else +extern void abort (void); +#endif + +#endif diff --git a/libgcc/soft-fp/subdf3.c b/libgcc/soft-fp/subdf3.c new file mode 100644 index 00000000000..3978b52998d --- /dev/null +++ b/libgcc/soft-fp/subdf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a - b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DFtype __subdf3(DFtype a, DFtype b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); + DFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_D(A, a); + FP_UNPACK_SEMIRAW_D(B, b); + FP_SUB_D(R, A, B); + FP_PACK_SEMIRAW_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/subsf3.c b/libgcc/soft-fp/subsf3.c new file mode 100644 index 00000000000..f1cbdd1ff1f --- /dev/null +++ b/libgcc/soft-fp/subsf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a - b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SFtype __subsf3(SFtype a, SFtype b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R); + SFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_S(A, a); + FP_UNPACK_SEMIRAW_S(B, b); + FP_SUB_S(R, A, B); + FP_PACK_SEMIRAW_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/subtf3.c b/libgcc/soft-fp/subtf3.c new file mode 100644 index 00000000000..7ba4c8c5ea0 --- /dev/null +++ b/libgcc/soft-fp/subtf3.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return a - b + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +TFtype __subtf3(TFtype a, TFtype b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(R); + TFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_Q(A, a); + FP_UNPACK_SEMIRAW_Q(B, b); + FP_SUB_Q(R, A, B); + FP_PACK_SEMIRAW_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/truncdfsf2.c b/libgcc/soft-fp/truncdfsf2.c new file mode 100644 index 00000000000..bd953912e98 --- /dev/null +++ b/libgcc/soft-fp/truncdfsf2.c @@ -0,0 +1,54 @@ +/* Software floating-point emulation. + Truncate IEEE double into IEEE single + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "double.h" + +SFtype __truncdfsf2(DFtype a) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_S(R); + SFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_D(A, a); +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + FP_TRUNC(S,D,1,2,R,A); +#else + FP_TRUNC(S,D,1,1,R,A); +#endif + FP_PACK_SEMIRAW_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/trunctfdf2.c b/libgcc/soft-fp/trunctfdf2.c new file mode 100644 index 00000000000..c3827b08abe --- /dev/null +++ b/libgcc/soft-fp/trunctfdf2.c @@ -0,0 +1,54 @@ +/* Software floating-point emulation. + Truncate IEEE quad into IEEE double + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +DFtype __trunctfdf2(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_D(R); + DFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_Q(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_TRUNC(D,Q,2,4,R,A); +#else + FP_TRUNC(D,Q,1,2,R,A); +#endif + FP_PACK_SEMIRAW_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/trunctfsf2.c b/libgcc/soft-fp/trunctfsf2.c new file mode 100644 index 00000000000..676c937e20a --- /dev/null +++ b/libgcc/soft-fp/trunctfsf2.c @@ -0,0 +1,54 @@ +/* Software floating-point emulation. + Truncate IEEE quad into IEEE single + Copyright (C) 1997,1999,2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "quad.h" + +SFtype __trunctfsf2(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_S(R); + SFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_Q(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_TRUNC(S,Q,1,4,R,A); +#else + FP_TRUNC(S,Q,1,2,R,A); +#endif + FP_PACK_SEMIRAW_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/trunctfxf2.c b/libgcc/soft-fp/trunctfxf2.c new file mode 100644 index 00000000000..50d60bc5d53 --- /dev/null +++ b/libgcc/soft-fp/trunctfxf2.c @@ -0,0 +1,53 @@ +/* Software floating-point emulation. + Truncate IEEE quad into IEEE extended + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "extended.h" +#include "quad.h" + +XFtype __trunctfxf2(TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_E(R); + XFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_Q(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_TRUNC(E,Q,4,4,R,A); +#else + FP_TRUNC(E,Q,2,2,R,A); +#endif + FP_PACK_SEMIRAW_E(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/libgcc/soft-fp/unorddf2.c b/libgcc/soft-fp/unorddf2.c new file mode 100644 index 00000000000..5ea63e2b976 --- /dev/null +++ b/libgcc/soft-fp/unorddf2.c @@ -0,0 +1,44 @@ +/* Software floating-point emulation. + Return 1 iff a or b is a NaN, 0 otherwise. + Copyright (C) 2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Joseph Myers (joseph@codesourcery.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "double.h" + +CMPtype __unorddf2(DFtype a, DFtype b) +{ + FP_DECL_D(A); FP_DECL_D(B); + CMPtype r; + + FP_UNPACK_RAW_D(A, a); + FP_UNPACK_RAW_D(B, b); + FP_CMP_UNORD_D(r, A, B); + + return r; +} diff --git a/libgcc/soft-fp/unordsf2.c b/libgcc/soft-fp/unordsf2.c new file mode 100644 index 00000000000..6d0afe853e2 --- /dev/null +++ b/libgcc/soft-fp/unordsf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Return 1 iff a or b is a NaN, 0 otherwise. + Copyright (C) 2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Joseph Myers (joseph@codesourcery.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "single.h" + +CMPtype __unordsf2(SFtype a, SFtype b) +{ + FP_DECL_S(A); + FP_DECL_S(B); + CMPtype r; + + FP_UNPACK_RAW_S(A, a); + FP_UNPACK_RAW_S(B, b); + FP_CMP_UNORD_S(r, A, B); + + return r; +} diff --git a/libgcc/soft-fp/unordtf2.c b/libgcc/soft-fp/unordtf2.c new file mode 100644 index 00000000000..9d1bd916c81 --- /dev/null +++ b/libgcc/soft-fp/unordtf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Return 1 iff a or b is a NaN, 0 otherwise. + Copyright (C) 2006,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Joseph Myers (joseph@codesourcery.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +CMPtype __unordtf2(TFtype a, TFtype b) +{ + FP_DECL_Q(A); + FP_DECL_Q(B); + CMPtype r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_UNORD_Q(r, A, B); + + return r; +} |