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authorRoland McGrath <roland@gnu.org>2006-01-28 00:15:15 +0000
committerRoland McGrath <roland@gnu.org>2006-01-28 00:15:15 +0000
commitf964490f3c4f094fd684960c2e98885b23e31376 (patch)
treee10f697bd55240b9be7a9c1a5109ee07893d3136 /sysdeps/powerpc/powerpc64/fpu
parentd421a7801d1bdfd8175e53a79068833ae4de56b1 (diff)
downloadglibc-f964490f3c4f094fd684960c2e98885b23e31376.tar.gz
2006-01-27 Dwayne Grant McConnell <decimal@us.ibm.com>cvs/fedora-glibc-20060130T0922
Jakub Jelinek <jakub@redhat.com> Roland McGrath <roland@redhat.com> Steven Munroe <sjmunroe@us.ibm.com> Alan Modra <amodra@bigpond.net.au> * sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Comment fix. * sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_llroundf.S: Likewise. * sysdeps/powerpc/fpu/libm-test-ulps: Update. * math/libm-test.inc (check_float_internal): Allow ulp <= 0.5. (erfc_test): Don't run erfcl (27.0L) test if erfcl (27.0L) is denormal. [TEST_LDOUBLE] (ceil_test, floor_test, llrint_test, llround_test, rint_test, round_test, trunc_test): Add new tests. * sysdeps/powerpc/powerpc32/fpu/s_copysignl.S: New file. * sysdeps/powerpc/powerpc32/fpu/s_fabs.S: New file. * sysdeps/powerpc/powerpc32/fpu/s_fabsl.S: New file. * sysdeps/powerpc/powerpc32/fpu/s_fdim.c: New file. * sysdeps/powerpc/powerpc32/fpu/s_fmax.S: New file. * sysdeps/powerpc/powerpc32/fpu/s_fmin.S: New file. * sysdeps/powerpc/powerpc32/fpu/s_isnan.c: New file. * sysdeps/powerpc/powerpc64/fpu/s_ceill.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_copysignl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_fabs.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_fabsl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_fdim.c: New file. * sysdeps/powerpc/powerpc64/fpu/s_floorl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_fmax.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_fmin.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_isnan.c: New file. * sysdeps/powerpc/powerpc64/fpu/s_llrintl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_llroundl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_lrintl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_lroundl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_rintl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_roundl.S: New file. * sysdeps/powerpc/powerpc64/fpu/s_truncl.S: New file. * sysdeps/unix/sysv/linux/powerpc/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/configure.in: New file. * sysdeps/unix/sysv/linux/powerpc/configure: New file. * sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h (__LONG_DOUBLE_MATH_OPTIONAL): Define. (__NO_LONG_DOUBLE_MATH): Define. * sysdeps/unix/sysv/linux/powerpc/nldbl-abi.h: New file. * sysdeps/powerpc/fpu/s_isnan.c: Include math_ldbl_opt.h. * sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (ceill): Add compatibility symbols. * sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (copysignl): Add compatibility symbols. * sysdeps/powerpc/powerpc64/fpu/s_floor.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (floorl): Add compatibility symbols. * sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (llrintl, lrintl): Add compatibility symbols. * sysdeps/powerpc/powerpc64/fpu/s_llround.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (llroundl, lroundl): Add compatibility symbols. * sysdeps/powerpc/powerpc64/fpu/s_rint.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (rintl): Add compatibility symbols. * sysdeps/powerpc/powerpc64/fpu/s_round.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (roundl): Add compatibility symbols. * sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (truncl): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (ceill): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (copysignl): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_floor.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (floorl): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_lrint.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (lrintl): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_llrint.c: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (llrintl): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_lround.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (lroundl): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_rint.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (rintl): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_round.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (roundl): Add compatibility symbols. * sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (truncl): Add compatibility symbols. * misc/qefgcvt_r.c [LDBL_MIN_10_EXP == -291] (FLOAT_MIN_10_NORM): New. * sysdeps/powerpc/fpu/bits/mathdef.h (__NO_LONG_DOUBLE_MATH): Remove. * sysdeps/powerpc/Implies: Add ieee754/ldbl-128ibm. * sysdeps/powerpc/powerpc32/Implies: Remove powerpc/soft-fp. * sysdeps/ieee754/ldbl-128ibm/Makefile: New file. * sysdeps/ieee754/ldbl-128ibm/e_acoshl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_acosl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_asinl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_atan2l.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_atanhl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_coshl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_expl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_fmodl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_hypotl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_j0l.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_j1l.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_jnl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_log10l.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_log2l.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_logl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_powl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_remainderl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_sinhl.c: New file. * sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c: New file. * sysdeps/ieee754/ldbl-128ibm/ieee754.h: New file. * sysdeps/ieee754/ldbl-128ibm/k_cosl.c: New file. * sysdeps/ieee754/ldbl-128ibm/k_sincosl.c: New file. * sysdeps/ieee754/ldbl-128ibm/k_sinl.c: New file. * sysdeps/ieee754/ldbl-128ibm/k_tanl.c: New file. * sysdeps/ieee754/ldbl-128ibm/ldbl2mpn.c: New file. * sysdeps/ieee754/ldbl-128ibm/math_ldbl.h: New file. * sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c: New file. * sysdeps/ieee754/ldbl-128ibm/printf_fphex.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_asinhl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_atanl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_cbrtl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_cosl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_erfl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_expm1l.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_fabsl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_finitel.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_fpclassifyl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_frexpl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_ilogbl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_isinfl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_isnanl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_log1pl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_logbl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_modfl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_remquol.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_rintl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_scalblnl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_scalbnl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_signbitl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_sincosl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_sinl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_tanhl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_tanl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_truncl.c: New file. * sysdeps/ieee754/ldbl-128ibm/strtold_l.c: New file. * sysdeps/ieee754/ldbl-128ibm/t_sincosl.c: New file. * sysdeps/ieee754/ldbl-128ibm/w_expl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_copysignl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_floorl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_llrintl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_llroundl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_roundl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_ceill.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_lrintl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_lroundl.c: New file. * sysdeps/ieee754/ldbl-128/e_powl.c: Fix old comment.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/fpu')
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_ceil.S6
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_ceill.S133
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_copysign.S10
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_copysignl.S51
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_fabs.S5
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_fabsl.S36
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_fdim.c5
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_floor.S6
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_floorl.S134
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_fmax.S5
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_fmin.S5
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_isnan.c7
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_llrint.S7
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_llrintl.S94
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_llround.S7
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_llroundf.S6
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_llroundl.S147
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_lrintl.S2
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_lroundl.S2
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S114
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_rint.S6
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_rintl.S113
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_round.S6
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_roundl.S133
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_trunc.S8
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_truncf.S4
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/s_truncl.S121
27 files changed, 1159 insertions, 14 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_ceil.S b/sysdeps/powerpc/powerpc64/fpu/s_ceil.S
index 9809e24d26..02b70940ee 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_ceil.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_ceil.S
@@ -1,5 +1,5 @@
/* ceil function. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,7 @@
02111-1307 USA. */
#include <sysdep.h>
+#include <math_ldbl_opt.h>
.section ".toc","aw"
.LC0: /* 2**52 */
@@ -58,3 +59,6 @@ weak_alias (__ceil, ceil)
weak_alias (__ceil, ceill)
strong_alias (__ceil, __ceill)
#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __ceil, ceill, GLIBC_2_0)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_ceill.S b/sysdeps/powerpc/powerpc64/fpu/s_ceill.S
new file mode 100644
index 0000000000..e164fec62b
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_ceill.S
@@ -0,0 +1,133 @@
+/* s_ceill.S IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ .section ".toc","aw"
+.LC0: /* 2**52 */
+ .tc FD_43300000_0[TC],0x4330000000000000
+
+ .section ".text"
+
+/* long double [fp1,fp2] ceill (long double x [fp1,fp2])
+ IEEE 1003.1 ceil function.
+
+ PowerPC64 long double uses the IBM extended format which is
+ represented two 64-floating point double values. The values are
+ non-overlapping giving an effective precision of 106 bits. The first
+ double contains the high order bits of mantisa and is always ceiled
+ to represent a normal ceiling of long double to double. Since the
+ long double value is sum of the high and low values, the low double
+ normally has the opposite sign to compensate for the this ceiling.
+
+ For long double there are two cases:
+ 1) |x| < 2**52, all the integer bits are in the high double.
+ ceil the high double and set the low double to -0.0.
+ 2) |x| >= 2**52, ceiling involves both doubles.
+ See the comment before lable .L2 for details.
+ */
+
+ENTRY (__ceill)
+ mffs fp11 /* Save current FPU rounding mode. */
+ lfd fp13,.LC0@toc(2)
+ fabs fp0,fp1
+ fabs fp9,fp2
+ fsub fp12,fp13,fp13 /* generate 0.0 */
+ fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ fcmpo cr6,fp1,fp12 /* if (x > 0.0) */
+ bnl- cr7,.L2
+ mtfsfi 7,2 /* Set rounding mode toward +inf. */
+ fneg fp2,fp12
+ ble- cr6,.L1
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fabs fp1,fp1 /* if (x == 0.0) */
+.L0:
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ blr /* x = 0.0; */
+.L1:
+ bge- cr6,.L0 /* if (x < 0.0) */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fcmpu cr5,fp1,fp12 /* if (x > 0.0) */
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ fnabs fp1,fp1 /* if (x == 0.0) */
+ blr /* x = -0.0; */
+
+/* The high double is > TWO52 so we need to round the low double and
+ perhaps the high double. In this case we have to round the low
+ double and handle any adjustment to the high double that may be
+ caused by rounding (up). This is complicated by the fact that the
+ high double may already be rounded and the low double may have the
+ opposite sign to compensate.This gets a bit tricky so we use the
+ following algorithm:
+
+ tau = floor(x_high/TWO52);
+ x0 = x_high - tau;
+ x1 = x_low + tau;
+ r1 = rint(x1);
+ y_high = x0 + r1;
+ y_low = x0 - y_high + r1;
+ return y; */
+.L2:
+ fcmpu cr7,fp9,fp13 /* if (|x_low| > TWO52) */
+ fcmpu cr0,fp9,fp12 /* || (|x_low| == 0.0) */
+ fcmpu cr5,fp2,fp12 /* if (x_low > 0.0) */
+ bgelr- cr7 /* return x; */
+ beqlr- cr0
+ mtfsfi 7,2 /* Set rounding mode toward +inf. */
+ fdiv fp8,fp1,fp13 /* x_high/TWO52 */
+
+ bng- cr6,.L6 /* if (x > 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ bng cr5,.L4 /* if (x_low > 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L5
+.L4: /* if (x_low < 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L5:
+ fadd fp5,fp4,fp13 /* r1 = r1 + TWO52; */
+ fsub fp5,fp5,fp13 /* r1 = r1 - TWO52; */
+ b .L9
+.L6: /* if (x < 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ bnl cr5,.L7 /* if (x_low < 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L8
+.L7: /* if (x_low > 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L8:
+ fsub fp5,fp4,fp13 /* r1-= TWO52; */
+ fadd fp5,fp5,fp13 /* r1+= TWO52; */
+.L9:
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ fadd fp1,fp3,fp5 /* y_high = x0 + r1; */
+ fsub fp2,fp3,fp1 /* y_low = x0 - y_high + r1; */
+ fadd fp2,fp2,fp5
+ blr
+END (__ceill)
+
+long_double_symbol (libm, __ceill, ceill)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_copysign.S b/sysdeps/powerpc/powerpc64/fpu/s_copysign.S
index c0fdf4196c..38171e31d7 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_copysign.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_copysign.S
@@ -1,5 +1,5 @@
/* Copy a sign bit between floating-point values. PowerPC64 version.
- Copyright (C) 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1999, 2000, 2002, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,7 @@
when it's coded in C. */
#include <sysdep.h>
+#include <math_ldbl_opt.h>
ENTRY(__copysign)
CALL_MCOUNT 0
@@ -53,3 +54,10 @@ strong_alias(__copysign,__copysignf)
weak_alias (__copysign,copysignl)
strong_alias(__copysign,__copysignl)
#endif
+#ifdef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __copysign, copysignl, GLIBC_2_0)
+# endif
+#elif LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __copysign, copysignl, GLIBC_2_0)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_copysignl.S b/sysdeps/powerpc/powerpc64/fpu/s_copysignl.S
new file mode 100644
index 0000000000..b2c62eacba
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_copysignl.S
@@ -0,0 +1,51 @@
+/* Copy a sign bit between floating-point values.
+ IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ENTRY(__copysignl)
+/* long double [f1,f2] copysign (long double [f1,f2] x, long double [f3,f4] y);
+ copysign(x,y) returns a value with the magnitude of x and
+ with the sign bit of y. */
+ stfd fp3,-16(r1)
+ ld r3,-16(r1)
+ cmpdi r3,0
+ blt L(0)
+ fmr fp0,fp1
+ fabs fp1,fp1
+ fcmpu cr1,fp0,fp1
+ beqlr cr1
+ fneg fp2,fp2
+ blr
+L(0):
+ fmr fp0,fp1
+ fnabs fp1,fp1
+ fcmpu cr1,fp0,fp1
+ beqlr cr1
+ fneg fp2,fp2
+ blr
+END (__copysignl)
+
+#ifdef IS_IN_libm
+long_double_symbol (libm, __copysignl, copysignl)
+#else
+long_double_symbol (libc, __copysignl, copysignl)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_fabs.S b/sysdeps/powerpc/powerpc64/fpu/s_fabs.S
new file mode 100644
index 0000000000..53d21301ee
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_fabs.S
@@ -0,0 +1,5 @@
+#include <math_ldbl_opt.h>
+#include <sysdeps/powerpc/fpu/s_fabs.S>
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __fabs, fabsl, GLIBC_2_0)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_fabsl.S b/sysdeps/powerpc/powerpc64/fpu/s_fabsl.S
new file mode 100644
index 0000000000..3655e5b2f3
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_fabsl.S
@@ -0,0 +1,36 @@
+/* Copy a sign bit between floating-point values.
+ IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ENTRY(__fabsl)
+/* long double [f1,f2] fabs (long double [f1,f2] x);
+ fabs(x,y) returns a value with the magnitude of x and
+ with the sign bit of y. */
+ fmr fp0,fp1
+ fabs fp1,fp1
+ fcmpu cr1,fp0,fp1
+ beqlr cr1
+ fneg fp2,fp2
+ blr
+END (__fabsl)
+
+long_double_symbol (libm, __fabsl, fabsl)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_fdim.c b/sysdeps/powerpc/powerpc64/fpu/s_fdim.c
new file mode 100644
index 0000000000..e34b51ee54
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_fdim.c
@@ -0,0 +1,5 @@
+#include <math_ldbl_opt.h>
+#include <sysdeps/powerpc/fpu/s_fdim.c>
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __fdim, fdiml, GLIBC_2_1);
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_floor.S b/sysdeps/powerpc/powerpc64/fpu/s_floor.S
index 183423c2b3..65a2848b67 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_floor.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_floor.S
@@ -1,5 +1,5 @@
/* Floor function. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,7 @@
02111-1307 USA. */
#include <sysdep.h>
+#include <math_ldbl_opt.h>
.section ".toc","aw"
.LC0: /* 2**52 */
@@ -58,3 +59,6 @@ weak_alias (__floor, floor)
weak_alias (__floor, floorl)
strong_alias (__floor, __floorl)
#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __floor, floorl, GLIBC_2_0)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_floorl.S b/sysdeps/powerpc/powerpc64/fpu/s_floorl.S
new file mode 100644
index 0000000000..01b3c2101d
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_floorl.S
@@ -0,0 +1,134 @@
+/* long double floor function.
+ IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ .section ".toc","aw"
+.LC0: /* 2**52 */
+ .tc FD_43300000_0[TC],0x4330000000000000
+
+ .section ".text"
+/* long double [fp1,fp2] floorl (long double x [fp1,fp2])
+ IEEE 1003.1 floor function.
+
+ PowerPC64 long double uses the IBM extended format which is
+ represented two 64-floating point double values. The values are
+ non-overlapping giving an effective precision of 106 bits. The first
+ double contains the high order bits of mantisa and is always rounded
+ to represent a normal rounding of long double to double. Since the
+ long double value is sum of the high and low values, the low double
+ normally has the opposite sign to compensate for the this rounding.
+
+ For long double there are two cases:
+ 1) |x| < 2**52, all the integer bits are in the high double.
+ floor the high double and set the low double to -0.0.
+ 2) |x| >= 2**52, Rounding involves both doubles.
+ See the comment before lable .L2 for details.
+ */
+
+ENTRY (__floorl)
+ mffs fp11 /* Save current FPU rounding mode. */
+ lfd fp13,.LC0@toc(2)
+ fabs fp0,fp1
+ fabs fp9,fp2
+ fsub fp12,fp13,fp13 /* generate 0.0 */
+ fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
+ bnl- cr7,.L2
+ mtfsfi 7,3 /* Set rounding mode toward -inf. */
+ fneg fp2,fp12 /* set low double to -0.0. */
+ ble- cr6,.L0
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fcmpu cr5,fp1,fp12 /* if (x > 0.0) */
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ bnelr+ cr5
+ fmr fp1,fp12 /* x must be +0.0 for the 0.0 case. */
+ blr
+.L0:
+ bge- cr6,.L1 /* if (x < 0.0) */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+.L1:
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ blr
+
+
+/* The high double is > TWO52 so we need to round the low double and
+ perhaps the high double. In this case we have to round the low
+ double and handle any adjustment to the high double that may be
+ caused by rounding (up). This is complicated by the fact that the
+ high double may already be rounded and the low double may have the
+ opposite sign to compensate.This gets a bit tricky so we use the
+ following algorithm:
+
+ tau = floor(x_high/TWO52);
+ x0 = x_high - tau;
+ x1 = x_low + tau;
+ r1 = rint(x1);
+ y_high = x0 + r1;
+ y_low = x0 - y_high + r1;
+ return y; */
+.L2:
+ fcmpu cr7,fp9,fp13 /* if (|x_low| > TWO52) */
+ fcmpu cr0,fp9,fp12 /* || (|x_low| == 0.0) */
+ fcmpu cr5,fp2,fp12 /* if (x_low > 0.0) */
+ bgelr- cr7 /* return x; */
+ beqlr- cr0
+ mtfsfi 7,3 /* Set rounding mode toward -inf. */
+ fdiv fp8,fp1,fp13 /* x_high/TWO52 */
+
+ bng- cr6,.L6 /* if (x > 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ bng cr5,.L4 /* if (x_low > 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L5
+.L4: /* if (x_low < 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L5:
+ fadd fp5,fp4,fp13 /* r1 = r1 + TWO52; */
+ fsub fp5,fp5,fp13 /* r1 = r1 - TWO52; */
+ b .L9
+.L6: /* if (x < 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ bnl cr5,.L7 /* if (x_low < 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L8
+.L7: /* if (x_low > 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L8:
+ fsub fp5,fp4,fp13 /* r1-= TWO52; */
+ fadd fp5,fp5,fp13 /* r1+= TWO52; */
+.L9:
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ fadd fp1,fp3,fp5 /* y_high = x0 + r1; */
+ fsub fp2,fp3,fp1 /* y_low = x0 - y_high + r1; */
+ fadd fp2,fp2,fp5
+ blr
+END (__floorl)
+
+long_double_symbol (libm, __floorl, floorl)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_fmax.S b/sysdeps/powerpc/powerpc64/fpu/s_fmax.S
new file mode 100644
index 0000000000..69735761ab
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_fmax.S
@@ -0,0 +1,5 @@
+#include <math_ldbl_opt.h>
+#include <sysdeps/powerpc/fpu/s_fmax.S>
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __fmax, fmaxl, GLIBC_2_1)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_fmin.S b/sysdeps/powerpc/powerpc64/fpu/s_fmin.S
new file mode 100644
index 0000000000..6d4a0a946c
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_fmin.S
@@ -0,0 +1,5 @@
+#include <math_ldbl_opt.h>
+#include <sysdeps/powerpc/fpu/s_fmin.S>
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __fmin, fminl, GLIBC_2_1)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_isnan.c b/sysdeps/powerpc/powerpc64/fpu/s_isnan.c
new file mode 100644
index 0000000000..397717ba9c
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_isnan.c
@@ -0,0 +1,7 @@
+#include <sysdeps/powerpc/fpu/s_isnan.c>
+#ifndef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
+compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
+# endif
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_llrint.S b/sysdeps/powerpc/powerpc64/fpu/s_llrint.S
index 610b561f25..ff0ba948a5 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_llrint.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_llrint.S
@@ -1,5 +1,5 @@
/* Round double to long int. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,7 @@
02111-1307 USA. */
#include <sysdep.h>
+#include <math_ldbl_opt.h>
/* long long int[r3] __llrint (double x[fp1]) */
ENTRY (__llrint)
@@ -41,3 +42,7 @@ weak_alias (__llrint, llrintl)
strong_alias (__lrint, __lrintl)
weak_alias (__lrint, lrintl)
#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __llrint, llrintl, GLIBC_2_1)
+compat_symbol (libm, __lrint, lrintl, GLIBC_2_1)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_llrintl.S b/sysdeps/powerpc/powerpc64/fpu/s_llrintl.S
new file mode 100644
index 0000000000..aa487775d4
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_llrintl.S
@@ -0,0 +1,94 @@
+/* Round long double to long int.
+ IBM extended format long double version.
+ Copyright (C) 2004,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ .section ".toc","aw"
+.LC0: /* 2**52 */
+ .tc FD_43300000_0[TC],0x4330000000000000
+.LC1: /* 2**63 */
+ .tc FD_43E00000_0[TC],0x43e0000000000000
+ .section ".text"
+
+/* long long int[r3] __llrintl (long double x[fp1,fp2]) */
+ENTRY (__llrintl)
+ lfd fp13,.LC0@toc(2)
+ lfd fp10,.LC1@toc(2)
+ fabs fp0,fp1
+ fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ fcmpu cr6,fp0,fp10 /* if (fabs(x) > TWO63) */
+ beq- cr6,.L2
+ fctid fp11,fp1 /* must delay this opperation to here */
+ fctid fp12,fp2 /* and avoid setting "invalid operation". */
+ li r0,0
+ stfd fp11,-16(r1)
+ bgt- cr6,.L9 /* if > TWO63 return "invalid operation". */
+ ble+ cr7,.L9 /* If < TWO52 only thy high double is used. */
+ stfd fp12,-8(r1)
+ nop /* Insure the following load is in a different dispatch group */
+ nop /* to avoid pipe stall on POWER4&5. */
+ nop
+.L8:
+ ld r0,-8(r1)
+.L9:
+ ld r3,-16(r1)
+ add r3,r3,r0
+ blr
+
+/* The high double is >= TWO63 so it looks like we are "out of range".
+ But this may be caused by rounding of the high double and the
+ negative low double may bring it back into range. So we need to
+ de-round the high double and invert the low double without changing
+ the effective long double value. To do this we compute a special
+ value (tau) that we can subtract from the high double and add to
+ the low double before conversion. The resulting integers can be
+ summed to get the total value.
+
+ tau = floor(x_high/TWO52);
+ x0 = x_high - tau;
+ x1 = x_low + tau; */
+.L2:
+ fdiv fp8,fp1,fp13 /* x_high/TWO52 */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+ fctid fp11,fp3
+ fctid fp12,fp4
+ stfd fp11,-16(r1)
+ stfd fp12,-8(r1)
+ nop /* Insure the following load is in a different dispatch group */
+ nop /* to avoid pipe stall on POWER4&5. */
+ nop
+ ld r3,-16(r1)
+ ld r0,-8(r1)
+ addo. r3,r3,r0
+ bnslr+ cr0 /* if the sum does not overflow, return. */
+ fctid fp11,fp1 /* Otherwise we want to set "invalid operation". */
+ li r0,0
+ stfd fp11,-16(r1)
+ b .L9
+
+END (__llrintl)
+
+strong_alias (__llrintl, __lrintl)
+long_double_symbol (libm, __llrintl, llrintl)
+long_double_symbol (libm, __lrintl, lrintl)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_llround.S b/sysdeps/powerpc/powerpc64/fpu/s_llround.S
index a3dcd4c33d..d023b8f2c0 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_llround.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_llround.S
@@ -1,5 +1,5 @@
/* llround function. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,7 @@
02111-1307 USA. */
#include <sysdep.h>
+#include <math_ldbl_opt.h>
.section ".toc","aw"
.LC0: /* -0.0 */
@@ -66,3 +67,7 @@ strong_alias (__llround, __llroundl)
weak_alias (__lround, lroundl)
strong_alias (__lround, __lroundl)
#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __llround, llroundl, GLIBC_2_1)
+compat_symbol (libm, __lround, lroundl, GLIBC_2_1)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_llroundf.S b/sysdeps/powerpc/powerpc64/fpu/s_llroundf.S
index b5ca43bf20..bbbd05492e 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_llroundf.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_llroundf.S
@@ -1,5 +1,5 @@
/* llroundf function. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -28,8 +28,8 @@
/* long long [r3] llroundf (float x [fp1])
IEEE 1003.1 llroundf function. IEEE specifies "roundf to the nearest
- integer value, roundfing halfway cases away from zero, regardless of
- the current roundfing mode." However PowerPC Architecture defines
+ integer value, rounding halfway cases away from zero, regardless of
+ the current rounding mode." However PowerPC Architecture defines
"roundf to Nearest" as "Choose the best approximation. In case of a
tie, choose the one that is even (least significant bit o).".
So we can't use the PowerPC "round to Nearest" mode. Instead we set
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_llroundl.S b/sysdeps/powerpc/powerpc64/fpu/s_llroundl.S
new file mode 100644
index 0000000000..b7aeb394f7
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_llroundl.S
@@ -0,0 +1,147 @@
+/* llroundl function.
+ IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ .section ".toc","aw"
+.LC0: /* 0.0 */
+ .tc FD_00000000_0[TC],0x0000000000000000
+.LC1: /* 0.5 */
+ .tc FD_3fe00000_0[TC],0x3fe0000000000000
+.LC2: /* 2**52 */
+ .tc FD_43300000_0[TC],0x4330000000000000
+.LC3: /* 2**63 */
+ .tc FD_43E00000_0[TC],0x43e0000000000000
+ .section ".text"
+
+/* long long [r3] llround (long double x [fp1,fp2])
+ IEEE 1003.1 llroundl function. IEEE specifies "round to the nearest
+ integer value, rounding halfway cases away from zero, regardless of
+ the current rounding mode." However PowerPC Architecture defines
+ "round to Nearest" as "Choose the best approximation. In case of a
+ tie, choose the one that is even (least significant bit o).".
+ So we can't use the PowerPC "round to Nearest" mode. Instead we set
+ "round toward Zero" mode and round by adding +-0.5 before rounding
+ toward zero. The "Floating Convert To Integer Doubleword with round
+ toward zero" instruction handles the conversion including the
+ overflow cases and signalling "Invalid Operation".
+
+ PowerPC64 long double uses the IBM extended format which is
+ represented two 64-floating point double values. The values are
+ non-overlapping giving an effective precision of 106 bits. The first
+ double contains the high order bits of mantisa and is always rounded
+ to represent a normal rounding of long double to double. Since the
+ long double value is sum of the high and low values, the low double
+ normally has the opposite sign to compensate for the this rounding.
+
+ For long double there is 4 cases:
+ 1) |x| < 2**52, all the integer bits are in the high double.
+ Round and convert the high double to long long.
+ 2) 2**52 <= |x|< 2**63, Still fits but need bits from both doubles.
+ Round the low double, convert both, then sum the long long values.
+ 3) |x| == 2**63, Looks like an overflow but may not be due to rounding
+ of the high double.
+ See the description following lable L2.
+ 4) |x| > 2**63, This will overflow the 64-bit signed integer.
+ Treat like case #1. The fctidz instruction will generate the
+ appropriate and signal "invalid operation".
+
+ */
+
+ENTRY (__llroundl)
+ fabs fp0,fp1
+ lfd fp13,.LC2@toc(2) /* 2**52 */
+ lfd fp12,.LC3@toc(2) /* 2**63 */
+ lfd fp11,.LC0@toc(2) /* 0.0 */
+ lfd fp10,.LC1@toc(2) /* 0.5 */
+ fcmpu cr0,fp0,fp12 /* if (x < TWO63 */
+ fcmpu cr7,fp0,fp13 /* if (x < TWO52 */
+ fcmpu cr6,fp1,fp11 /* if (x > 0.0) */
+ bge- cr0,.L2
+ bge- cr7,.L8
+ ble- cr6,.L4
+ fadd fp4,fp2,fp10 /* x+= 0.5; */
+ fadd fp5,fp1,fp4 /* x+= 0.5; */
+.L9:
+ fctidz fp3,fp5 /* Convert To Integer DW llround toward 0. */
+ stfd fp3,-16(r1)
+ nop /* Insure the following load is in a different dispatch group */
+ nop /* to avoid pipe stall on POWER4&5. */
+ nop
+ ld r3,-16(r1)
+ blr
+.L4:
+ fsub fp4,fp2,fp10 /* x-= 0.5; */
+ fadd fp5,fp1,fp4 /* x+= 0.5; */
+ b .L9
+.L8:
+ ble cr6,.L6
+ fneg fp10,fp10
+.L6:
+ fadd fp2,fp2,fp10
+ fctidz fp3,fp1 /* Convert To Integer DW llround toward 0. */
+ fctidz fp4,fp2 /* Convert To Integer DW llround toward 0. */
+ stfd fp3,-16(r1)
+ stfd fp4,-8(r1)
+ nop /* Insure the following load is in a different dispatch group */
+ nop /* to avoid pipe stall on POWER4&5. */
+ nop
+ ld r3,-16(r1)
+ ld r0,-8(r1)
+ add r3,r3,r0
+ blr
+.L2:
+/* The high double is >= TWO63 so it looks like we are "out of range".
+ But this may be caused by rounding of the high double and the
+ negative low double may bring it back into range. So we need to
+ de-round the high double and invert the low double without changing
+ the effective long double value. To do this we compute a special
+ value (tau) that we can subtract from the high double and add to
+ the low double before conversion. The resulting integers can be
+ summed to get the total value.
+
+ tau = floor(x_high/TWO52);
+ x0 = x_high - tau;
+ x1 = x_low + tau; */
+.L2:
+ fdiv fp8,fp1,fp13 /* x_high/TWO52 */
+ bgt- cr0,.L9 /* if x > TWO63 */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+ fctid fp11,fp3
+ fctid fp12,fp4
+ stfd fp11,-16(r1)
+ stfd fp12,-8(r1)
+ nop /* Insure the following load is in a different dispatch group */
+ nop /* to avoid pipe stall on POWER4&5. */
+ nop
+ ld r3,-16(r1)
+ ld r0,-8(r1)
+ addo. r3,r3,r0
+ bnslr+ cr0 /* if the sum does not overflow, return. */
+ b .L9 /* Otherwise we want to set "invalid operation". */
+END (__llroundl)
+
+strong_alias (__llroundl, __lroundl)
+long_double_symbol (libm, __llroundl, llroundl)
+long_double_symbol (libm, __lroundl, lroundl)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_lrintl.S b/sysdeps/powerpc/powerpc64/fpu/s_lrintl.S
new file mode 100644
index 0000000000..6c82d2e222
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_lrintl.S
@@ -0,0 +1,2 @@
+/* __lrintl is in s_llrintl.c */
+/* __lrintl is in s_llrintl.c */
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_lroundl.S b/sysdeps/powerpc/powerpc64/fpu/s_lroundl.S
new file mode 100644
index 0000000000..b24dfd8ded
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_lroundl.S
@@ -0,0 +1,2 @@
+/* __lroundl is in s_llroundl.S */
+/* __lroundl is in s_llroundl.S */
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S b/sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S
new file mode 100644
index 0000000000..0d0eb36f98
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S
@@ -0,0 +1,114 @@
+/* nearbyint long double.
+ IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ .section ".toc","aw"
+.LC0: /* 2**52 */
+ .tc FD_43300000_0[TC],0x4330000000000000
+ .section ".text"
+
+/* long double [fp1,fp2] nearbyintl (long double x [fp1,fp2])
+ IEEE 1003.1 nearbyintl function. nearbyintl is simular to the rintl
+ but does raise the "inexact" exception. This implementation is
+ based on rintl but explicitly maskes the inexact exception on entry
+ and clears any pending inexact before restoring the exception mask
+ on exit.
+
+ PowerPC64 long double uses the IBM extended format which is
+ represented two 64-floating point double values. The values are
+ non-overlapping giving an effective precision of 106 bits. The first
+ double contains the high order bits of mantisa and is always rounded
+ to represent a normal rounding of long double to double. Since the
+ long double value is sum of the high and low values, the low double
+ normally has the opposite sign to compensate for the this rounding.
+
+ For long double there are two cases:
+ 1) |x| < 2**52, all the integer bits are in the high double.
+ floor the high double and set the low double to -0.0.
+ 2) |x| >= 2**52, Rounding involves both doubles.
+ See the comment before lable .L2 for details.
+ */
+ENTRY (__nearbyintl)
+ mffs fp11 /* Save current FPSCR. */
+ lfd fp13,.LC0@toc(2)
+ fabs fp0,fp1
+ mtfsb0 28 /* Disable "inexact" exceptions. */
+ fsub fp12,fp13,fp13 /* generate 0.0 */
+ fabs fp9,fp2
+ fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
+ bnl- cr7,.L2
+ fmr fp2,fp12
+ bng- cr6,.L4
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ b .L9
+.L4:
+ bnl- cr6,.L9 /* if (x < 0.0) */
+ fsub fp1,fp13,fp1 /* x = TWO52 - x; */
+ fsub fp0,fp1,fp13 /* x = - (x - TWO52); */
+ fneg fp1,fp0
+.L9:
+ mtfsb0 6 /* Clear any pending "inexact" exceptions. */
+ mtfsf 0x01,fp11 /* restore exception mask. */
+ blr
+
+/* The high double is > TWO52 so we need to round the low double and
+ perhaps the high double. This gets a bit tricky so we use the
+ following algorithm:
+
+ tau = floor(x_high/TWO52);
+ x0 = x_high - tau;
+ x1 = x_low + tau;
+ r1 = nearbyint(x1);
+ y_high = x0 + r1;
+ y_low = r1 - tau;
+ return y; */
+.L2:
+ fcmpu cr7,fp9,fp13 /* if (|x_low| > TWO52) */
+ fcmpu cr0,fp9,fp12 /* || (|x_low| == 0.0) */
+ bge- cr7,.L9 /* return x; */
+ beq- cr0,.L9
+ fdiv fp8,fp1,fp13 /* x_high/TWO52 */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+
+ fcmpu cr6,fp4,fp12 /* if (x1 > 0.0) */
+ bng- cr6,.L8
+ fadd fp5,fp4,fp13 /* r1 = x1 + TWO52; */
+ fsub fp5,fp5,fp13 /* r1 = r1 - TWO52; */
+ b .L6
+.L8:
+ fmr fp5,fp4
+ bge- cr6,.L6 /* if (x1 < 0.0) */
+ fsub fp5,fp13,fp4 /* r1 = TWO52 - x1; */
+ fsub fp0,fp5,fp13 /* r1 = - (r1 - TWO52); */
+ fneg fp5,fp0
+.L6:
+ fadd fp1,fp3,fp5 /* y_high = x0 + r1; */
+ fsub fp2,fp5,fp8 /* y_low = r1 - tau; */
+ b .L9
+END (__nearbyintl)
+
+long_double_symbol (libm, __nearbyintl, nearbyintl)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_rint.S b/sysdeps/powerpc/powerpc64/fpu/s_rint.S
index 0c0e0ba67b..b4fbc0b51b 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_rint.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_rint.S
@@ -1,5 +1,5 @@
/* Round to int floating-point values. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,7 @@
when it's coded in C. */
#include <sysdep.h>
+#include <math_ldbl_opt.h>
.section ".toc","aw"
.LC0: /* 2**52 */
@@ -54,3 +55,6 @@ weak_alias (__rint, rint)
weak_alias (__rint, rintl)
strong_alias (__rint, __rintl)
#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __rint, rintl, GLIBC_2_0)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_rintl.S b/sysdeps/powerpc/powerpc64/fpu/s_rintl.S
new file mode 100644
index 0000000000..2ca2d4481f
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_rintl.S
@@ -0,0 +1,113 @@
+/* Round to int long double floating-point values.
+ IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This has been coded in assembler because GCC makes such a mess of it
+ when it's coded in C. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ .section ".toc","aw"
+.LC0: /* 2**52 */
+ .tc FD_43300000_0[TC],0x4330000000000000
+ .section ".text"
+
+ENTRY (__rintl)
+ lfd fp13,.LC0@toc(2)
+ fabs fp0,fp1
+ fsub fp12,fp13,fp13 /* generate 0.0 */
+ fabs fp9,fp2
+ fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
+ bnl- cr7,.L2
+ fmr fp2,fp12
+ bng- cr6,.L1
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fabs fp1,fp1 /* if (x == 0.0) */
+ blr /* x = 0.0; */
+.L1:
+ bnllr- cr6 /* if (x < 0.0) */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fnabs fp1,fp1 /* if (x == 0.0) */
+ blr /* x = -0.0; */
+
+/* The high double is > TWO52 so we need to round the low double and
+ perhaps the high double. In this case we have to round the low
+ double and handle any adjustment to the high double that may be
+ caused by rounding (up). This is complicated by the fact that the
+ high double may already be rounded and the low double may have the
+ opposite sign to compensate.This gets a bit tricky so we use the
+ following algorithm:
+
+ tau = floor(x_high/TWO52);
+ x0 = x_high - tau;
+ x1 = x_low + tau;
+ r1 = rint(x1);
+ y_high = x0 + r1;
+ y_low = x0 - y_high + r1;
+ return y; */
+.L2:
+ fcmpu cr7,fp9,fp13 /* if (|x_low| > TWO52) */
+ fcmpu cr0,fp9,fp12 /* || (|x_low| == 0.0) */
+ fcmpu cr5,fp2,fp12 /* if (x_low > 0.0) */
+ bgelr- cr7 /* return x; */
+ beqlr- cr0
+ fdiv fp8,fp1,fp13 /* x_high/TWO52 */
+
+ bng- cr6,.L6 /* if (x > 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ fadd fp8,fp8,fp8 /* tau++; Make tau even */
+ bng cr5,.L4 /* if (x_low > 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L5
+.L4: /* if (x_low < 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L5:
+ fadd fp5,fp4,fp13 /* r1 = x1 + TWO52; */
+ fsub fp5,fp5,fp13 /* r1 = r1 - TWO52; */
+ b .L9
+.L6: /* if (x < 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ fadd fp8,fp8,fp8 /* tau++; Make tau even */
+ bnl cr5,.L7 /* if (x_low < 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L8
+.L7: /* if (x_low > 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L8:
+ fsub fp5,fp13,fp4 /* r1 = TWO52 - x1; */
+ fsub fp0,fp5,fp13 /* r1 = - (r1 - TWO52); */
+ fneg fp5,fp0
+.L9:
+ fadd fp1,fp3,fp5 /* y_high = x0 + r1; */
+ fsub fp2,fp3,fp1 /* y_low = x0 - y_high + r1; */
+ fadd fp2,fp2,fp5
+ blr
+END (__rintl)
+
+long_double_symbol (libm, __rintl, rintl)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_round.S b/sysdeps/powerpc/powerpc64/fpu/s_round.S
index b07a7ea15a..15afca1543 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_round.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_round.S
@@ -1,5 +1,5 @@
/* round function. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,7 @@
02111-1307 USA. */
#include <sysdep.h>
+#include <math_ldbl_opt.h>
.section ".toc","aw"
.LC0: /* 2**52 */
@@ -73,3 +74,6 @@ weak_alias (__round, round)
weak_alias (__round, roundl)
strong_alias (__round, __roundl)
#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __round, roundl, GLIBC_2_1)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_roundl.S b/sysdeps/powerpc/powerpc64/fpu/s_roundl.S
new file mode 100644
index 0000000000..20da828a82
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_roundl.S
@@ -0,0 +1,133 @@
+/* long double round function.
+ IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ .section ".toc","aw"
+.LC0: /* 2**52 */
+ .tc FD_43300000_0[TC],0x4330000000000000
+.LC1: /* 0.5 */
+ .tc FD_3fe00000_0[TC],0x3fe0000000000000
+ .section ".text"
+
+/* long double [fp1,fp2] roundl (long double x [fp1,fp2])
+ IEEE 1003.1 round function. IEEE specifies "round to the nearest
+ integer value, rounding halfway cases away from zero, regardless of
+ the current rounding mode." However PowerPC Architecture defines
+ "Round to Nearest" as "Choose the best approximation. In case of a
+ tie, choose the one that is even (least significant bit o).".
+ So we can't use the PowerPC "Round to Nearest" mode. Instead we set
+ "Round toward Zero" mode and round by adding +-0.5 before rounding
+ to the integer value. */
+
+ENTRY (__roundl)
+ mffs fp11 /* Save current FPU rounding mode. */
+ lfd fp13,.LC0@toc(2)
+ fabs fp0,fp1
+ fabs fp9,fp2
+ fsub fp12,fp13,fp13 /* generate 0.0 */
+ fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
+ bnl- cr7,.L2
+ mtfsfi 7,1 /* Set rounding mode toward 0. */
+ lfd fp10,.LC1@toc(2)
+ ble- cr6,.L1
+ fneg fp2,fp12
+ fadd fp1,fp1,fp10 /* x+= 0.5; */
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fabs fp1,fp1 /* if (x == 0.0) x = 0.0; */
+.L0:
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ blr
+.L1:
+ fsub fp9,fp1,fp10 /* x-= 0.5; */
+ fneg fp2,fp12
+ bge- cr6,.L0 /* if (x < 0.0) */
+ fsub fp1,fp9,fp13 /* x-= TWO52; */
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fnabs fp1,fp1 /* if (x == 0.0) x = -0.0; */
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ blr
+
+/* The high double is > TWO52 so we need to round the low double and
+ perhaps the high double. In this case we have to round the low
+ double and handle any adjustment to the high double that may be
+ caused by rounding (up). This is complicated by the fact that the
+ high double may already be rounded and the low double may have the
+ opposite sign to compensate.This gets a bit tricky so we use the
+ following algorithm:
+
+ tau = floor(x_high/TWO52);
+ x0 = x_high - tau;
+ x1 = x_low + tau;
+ r1 = rint(x1);
+ y_high = x0 + r1;
+ y_low = x0 - y_high + r1;
+ return y; */
+.L2:
+ fcmpu cr7,fp9,fp13 /* if (|x_low| > TWO52) */
+ fcmpu cr0,fp9,fp12 /* || (|x_low| == 0.0) */
+ fcmpu cr5,fp2,fp12 /* if (x_low > 0.0) */
+ lfd fp10,.LC1@toc(2)
+ bgelr- cr7 /* return x; */
+ beqlr- cr0
+ mtfsfi 7,1 /* Set rounding mode toward 0. */
+ fdiv fp8,fp1,fp13 /* x_high/TWO52 */
+
+ bng- cr6,.L6 /* if (x > 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ bng cr5,.L4 /* if (x_low > 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L5
+.L4: /* if (x_low < 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L5:
+ fadd fp5,fp4,fp10 /* r1 = x1 + 0.5; */
+ fadd fp5,fp5,fp13 /* r1 = r1 + TWO52; */
+ fsub fp5,fp5,fp13 /* r1 = r1 - TWO52; */
+ b .L9
+.L6: /* if (x < 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ bnl cr5,.L7 /* if (x_low < 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L8
+.L7: /* if (x_low > 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L8:
+ fsub fp5,fp4,fp10 /* r1 = x1 - 0.5; */
+ fsub fp5,fp5,fp13 /* r1-= TWO52; */
+ fadd fp5,fp5,fp13 /* r1+= TWO52; */
+.L9:
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ fadd fp1,fp3,fp5 /* y_high = x0 + r1; */
+ fsub fp2,fp3,fp1 /* y_low = x0 - y_high + r1; */
+ fadd fp2,fp2,fp5
+ blr
+END (__roundl)
+
+long_double_symbol (libm, __roundl, roundl)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_trunc.S b/sysdeps/powerpc/powerpc64/fpu/s_trunc.S
index d69e371b61..086ed0025e 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_trunc.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_trunc.S
@@ -1,5 +1,5 @@
/* trunc function. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,7 @@
02111-1307 USA. */
#include <sysdep.h>
+#include <math_ldbl_opt.h>
.section ".toc","aw"
.LC0: /* 2**52 */
@@ -46,7 +47,7 @@ EALIGN (__trunc, 4, 0)
fsub fp1,fp1,fp13 /* x-= TWO52; */
fabs fp1,fp1 /* if (x == 0.0) */
/* x = 0.0; */
- mtfsf 0x01,fp11 /* restore previous truncing mode. */
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
blr
.L4:
bge- cr6,.L9 /* if (x < 0.0) */
@@ -65,3 +66,6 @@ weak_alias (__trunc, trunc)
weak_alias (__trunc, truncl)
strong_alias (__trunc, __truncl)
#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __trunc, truncl, GLIBC_2_1)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_truncf.S b/sysdeps/powerpc/powerpc64/fpu/s_truncf.S
index 15f53da8ca..1456e7f434 100644
--- a/sysdeps/powerpc/powerpc64/fpu/s_truncf.S
+++ b/sysdeps/powerpc/powerpc64/fpu/s_truncf.S
@@ -1,5 +1,5 @@
/* truncf function. PowerPC64 version.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -46,7 +46,7 @@ EALIGN (__truncf, 4, 0)
fsubs fp1,fp1,fp13 /* x-= TWO23; */
fabs fp1,fp1 /* if (x == 0.0) */
/* x = 0.0; */
- mtfsf 0x01,fp11 /* restore previous truncing mode. */
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
blr
.L4:
bge- cr6,.L9 /* if (x < 0.0) */
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_truncl.S b/sysdeps/powerpc/powerpc64/fpu/s_truncl.S
new file mode 100644
index 0000000000..1864fc14b7
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/s_truncl.S
@@ -0,0 +1,121 @@
+/* long double trunc function.
+ IBM extended format long double version.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ 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, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+ .section ".toc","aw"
+.LC0: /* 2**52 */
+ .tc FD_43300000_0[TC],0x4330000000000000
+.LC1: /* 0.5 */
+ .tc FD_3fe00000_0[TC],0x3fe0000000000000
+ .section ".text"
+
+/* long double [fp1,fp2] truncl (long double x [fp1,fp2]) */
+
+ENTRY (__truncl)
+ mffs fp11 /* Save current FPU rounding mode. */
+ lfd fp13,.LC0@toc(2)
+ fabs fp0,fp1
+ fabs fp9,fp2
+ fsub fp12,fp13,fp13 /* generate 0.0 */
+ fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
+ bnl- cr7,.L2
+ mtfsfi 7,1 /* Set rounding mode toward 0. */
+ ble- cr6,.L1
+ fneg fp2,fp12
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fabs fp1,fp1 /* if (x == 0.0) x = 0.0; */
+.L0:
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ blr
+.L1:
+ fneg fp2,fp12
+ bge- cr6,.L0 /* if (x < 0.0) */
+ fsub fp1,fp1,fp13 /* x-= TWO52; */
+ fadd fp1,fp1,fp13 /* x+= TWO52; */
+ fnabs fp1,fp1 /* if (x == 0.0) x = -0.0; */
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ blr
+
+/* The high double is > TWO52 so we need to round the low double and
+ perhaps the high double. In this case we have to round the low
+ double and handle any adjustment to the high double that may be
+ caused by rounding (up). This is complicated by the fact that the
+ high double may already be rounded and the low double may have the
+ opposite sign to compensate.This gets a bit tricky so we use the
+ following algorithm:
+
+ tau = floor(x_high/TWO52);
+ x0 = x_high - tau;
+ x1 = x_low + tau;
+ r1 = rint(x1);
+ y_high = x0 + r1;
+ y_low = x0 - y_high + r1;
+ return y; */
+.L2:
+ fcmpu cr7,fp9,fp13 /* if (|x_low| > TWO52) */
+ fcmpu cr0,fp9,fp12 /* || (|x_low| == 0.0) */
+ fcmpu cr5,fp2,fp12 /* if (x_low > 0.0) */
+ bgelr- cr7 /* return x; */
+ beqlr- cr0
+ mtfsfi 7,1 /* Set rounding mode toward 0. */
+ fdiv fp8,fp1,fp13 /* x_high/TWO52 */
+
+ bng- cr6,.L6 /* if (x > 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ fadd fp8,fp8,fp8 /* tau++; Make tau even */
+ bng cr5,.L4 /* if (x_low > 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L5
+.L4: /* if (x_low < 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L5:
+ fadd fp5,fp4,fp13 /* r1 = r1 + TWO52; */
+ fsub fp5,fp5,fp13 /* r1 = r1 - TWO52; */
+ b .L9
+.L6: /* if (x < 0.0) */
+ fctidz fp0,fp8
+ fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */
+ fadd fp8,fp8,fp8 /* tau++; Make tau even */
+ bnl cr5,.L7 /* if (x_low < 0.0) */
+ fmr fp3,fp1
+ fmr fp4,fp2
+ b .L8
+.L7: /* if (x_low > 0.0) */
+ fsub fp3,fp1,fp8 /* x0 = x_high - tau; */
+ fadd fp4,fp2,fp8 /* x1 = x_low + tau; */
+.L8:
+ fsub fp5,fp4,fp13 /* r1-= TWO52; */
+ fadd fp5,fp5,fp13 /* r1+= TWO52; */
+.L9:
+ mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ fadd fp1,fp3,fp5 /* y_high = x0 + r1; */
+ fsub fp2,fp3,fp1 /* y_low = x0 - y_high + r1; */
+ fadd fp2,fp2,fp5
+ blr
+END (__truncl)
+
+long_double_symbol (libm, __truncl, truncl)