From 87969c8c8b36df7b629b962028b668d7ede7321c Mon Sep 17 00:00:00 2001 From: burnus Date: Tue, 16 Nov 2010 21:23:19 +0000 Subject: / 2010-11-13 Francois-Xavier Coudert Tobias Burnus PR fortran/32049 * Makefile.def: Add libquadmath; build it with language=fortran. * configure.ac: Add libquadmath. * Makefile.tpl: Handle multiple libs in check-[+language+]. * Makefile.in: Regenerate. * configure: Regenerate. libquadmath/ 2010-11-13 Francois-Xavier Coudert Tobias Burnus PR fortran/32049 Initial implementation and checkin. gcc/fortran/ 2010-11-13 Francois-Xavier Coudert Tobias Burnus PR fortran/32049 * gfortranspec.c (find_spec_file): New function. (lang_specific_driver): Try to find .spec file and use it. * trans-io.c (iocall): Define * IOCALL_X_REAL128/COMPLEX128(,write). (gfc_build_io_library_fndecls): Build decl for __float128 I/O. (transfer_expr): Call __float128 I/O functions. * trans-types.c (gfc_init_kinds): Allow kind-16 belonging to __float128. gcc/testsuite/ 2010-11-13 Francois-Xavier Coudert Tobias Burnus PR fortran/32049 * gfortran.dg/quad_1.f90: New. * lib/gcc-defs.exp (gcc-set-multilib-library-path): Use also compiler arguments. * lib/gfortran.exp (gfortran_link_flags): Add libquadmath to library search path; call gcc-set-multilib-library-path with arguments such that libgfortran.spec is found. (gfortran_init): Add path for libgfortran.spec to GFORTRAN_UNDER_TEST. libgomp/ 2010-11-13 Francois-Xavier Coudert Tobias Burnus PR fortran/32049 * configure.ac: * configure: Regenerate. libgfortran/ 2010-11-13 Francois-Xavier Coudert Tobias Burnus PR fortran/32049 * Makefile.am: Add missing pow_r16_i4.c, add transfer128.c, link libquadmath, if used. * acinclude.m4 (LIBGFOR_CHECK_FLOAT128): Add. * configure.ac: Use it, touch spec file. * gfortran.map: Add pow_r16_i4 and transfer_(real,complex)128(,write) functions. * intrinsics/cshift0.c (cshift0): Handle __float128 type. * intrinsics/erfc_scaled_inc.c: Ditto. * intrinsics/pack_generic.c (pack): Ditto * intrinsics/spread_generic.c (spread): Ditto. * intrinsics/unpack_generic.c (unpack1): Ditto. * io/read.c (convert_real): Ditto. * io/transfer.c: Update comments. * io/transfer128.c: New file. * io/write_float.def (write_float): Handle __float128 type. * libgfortran.h: #include quadmath_weak.h, define __builtin_infq and nanq. * m4/mtype.m4: Handle __float128 type. * runtime/in_pack_generic.c (internal_pack): Ditto. * runtime/in_unpack_generic.c (internal_unpack): Ditto. * kinds-override.h: New file. * libgfortran.spec.in: Ditto. * generated/pow_r16_i4.c: Generated. * Makefile.in: Regenerate. * configure: Regenerate. * config.h: Regenerate. * bessel_r10.c: Regenerate. * bessel_r16.c: Regenerate. * bessel_r4.c: Regenerate. * bessel_r8.c: Regenerate. * exponent_r16.c: Regenerate. * fraction_r16.c: Regenerate. * nearest_r16.c: Regenerate. * norm2_r10.c: Regenerate. * norm2_r16.c: Regenerate. * norm2_r4.c: Regenerate. * norm2_r8.c: Regenerate. * rrspacing_r16.c: Regenerate. * set_exponent_r16.c: Regenerate. * spacing_r16.c: Regenerate. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166825 138bc75d-0d04-0410-961f-82ee72b054a4 --- libquadmath/gdtoa/sum.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 libquadmath/gdtoa/sum.c (limited to 'libquadmath/gdtoa/sum.c') diff --git a/libquadmath/gdtoa/sum.c b/libquadmath/gdtoa/sum.c new file mode 100644 index 00000000000..dc0c88bcfab --- /dev/null +++ b/libquadmath/gdtoa/sum.c @@ -0,0 +1,98 @@ +/**************************************************************** + +The author of this software is David M. Gay. + +Copyright (C) 1998 by Lucent Technologies +All Rights Reserved + +Permission to use, copy, modify, and distribute this software and +its documentation for any purpose and without fee is hereby +granted, provided that the above copyright notice appear in all +copies and that both that the copyright notice and this +permission notice and warranty disclaimer appear in supporting +documentation, and that the name of Lucent or any of its entities +not be used in advertising or publicity pertaining to +distribution of the software without specific, written prior +permission. + +LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, +INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. +IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY +SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER +IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. + +****************************************************************/ + +/* Please send bug reports to David M. Gay (dmg at acm dot org, + * with " at " changed at "@" and " dot " changed to "."). */ + +#include "gdtoaimp.h" + + Bigint * +#ifdef KR_headers +sum(a, b) Bigint *a; Bigint *b; +#else +sum(Bigint *a, Bigint *b) +#endif +{ + Bigint *c; + ULong carry, *xc, *xa, *xb, *xe, y; +#ifdef Pack_32 + ULong z; +#endif + + if (a->wds < b->wds) { + c = b; b = a; a = c; + } + c = Balloc(a->k); + c->wds = a->wds; + carry = 0; + xa = a->x; + xb = b->x; + xc = c->x; + xe = xc + b->wds; +#ifdef Pack_32 + do { + y = (*xa & 0xffff) + (*xb & 0xffff) + carry; + carry = (y & 0x10000) >> 16; + z = (*xa++ >> 16) + (*xb++ >> 16) + carry; + carry = (z & 0x10000) >> 16; + Storeinc(xc, z, y); + } + while(xc < xe); + xe += a->wds - b->wds; + while(xc < xe) { + y = (*xa & 0xffff) + carry; + carry = (y & 0x10000) >> 16; + z = (*xa++ >> 16) + carry; + carry = (z & 0x10000) >> 16; + Storeinc(xc, z, y); + } +#else + do { + y = *xa++ + *xb++ + carry; + carry = (y & 0x10000) >> 16; + *xc++ = y & 0xffff; + } + while(xc < xe); + xe += a->wds - b->wds; + while(xc < xe) { + y = *xa++ + carry; + carry = (y & 0x10000) >> 16; + *xc++ = y & 0xffff; + } +#endif + if (carry) { + if (c->wds == c->maxwds) { + b = Balloc(c->k + 1); + Bcopy(b, c); + Bfree(c); + c = b; + } + c->x[c->wds++] = 1; + } + return c; + } -- cgit v1.2.1