From 5561aaad28ed6db6d962f88db32814043044731f Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Thu, 4 Aug 2011 15:41:08 +0100 Subject: eglibc: Fix patch merge breakage (From OE-Core rev: 8a731122e7811275f20065ba27645b97fadf362d) Signed-off-by: Richard Purdie --- .../recipes-core/eglibc/eglibc-2.13/ppc-sqrt.patch | 1076 ++++++++++---------- 1 file changed, 538 insertions(+), 538 deletions(-) (limited to 'meta/recipes-core/eglibc') diff --git a/meta/recipes-core/eglibc/eglibc-2.13/ppc-sqrt.patch b/meta/recipes-core/eglibc/eglibc-2.13/ppc-sqrt.patch index 0c6f0cb1f0..203040c15c 100644 --- a/meta/recipes-core/eglibc/eglibc-2.13/ppc-sqrt.patch +++ b/meta/recipes-core/eglibc/eglibc-2.13/ppc-sqrt.patch @@ -1,538 +1,538 @@ -Upstream-Status: Pending - -2011-03-22 Joseph Myers - - Merge from SG++ 2.11: - - 2010-10-05 Nathan Froyd - - Issue #9382 - - * sysdeps/powerpc/powerpc32/603e/: New directory. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/: New directory. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/: New directory. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/: New directory. - * sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c: Update. - * sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c: Update. - * sysdeps/powerpc/powerpc64/e5500/fpu/Implies: New file. - -Index: libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrt.c -=================================================================== ---- /dev/null -+++ libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrt.c -@@ -0,0 +1,134 @@ -+/* Double-precision floating point square root. -+ Copyright (C) 2010 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 -+#include -+#include -+#include -+ -+#include -+#include -+ -+static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; -+static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; -+static const float two108 = 3.245185536584267269e+32; -+static const float twom54 = 5.551115123125782702e-17; -+static const float half = 0.5; -+ -+/* The method is based on the descriptions in: -+ -+ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5; -+ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9 -+ -+ We find the actual square root and half of its reciprocal -+ simultaneously. */ -+ -+#ifdef __STDC__ -+double -+__ieee754_sqrt (double b) -+#else -+double -+__ieee754_sqrt (b) -+ double b; -+#endif -+{ -+ if (__builtin_expect (b > 0, 1)) -+ { -+ double y, g, h, d, r; -+ ieee_double_shape_type u; -+ -+ if (__builtin_expect (b != a_inf.value, 1)) -+ { -+ fenv_t fe; -+ -+ fe = fegetenv_register (); -+ -+ u.value = b; -+ -+ relax_fenv_state (); -+ -+ __asm__ ("frsqrte %[estimate], %[x]\n" -+ : [estimate] "=f" (y) : [x] "f" (b)); -+ -+ /* Following Muller et al, page 168, equation 5.20. -+ -+ h goes to 1/(2*sqrt(b)) -+ g goes to sqrt(b). -+ -+ We need three iterations to get within 1ulp. */ -+ -+ /* Indicate that these can be performed prior to the branch. GCC -+ insists on sinking them below the branch, however; it seems like -+ they'd be better before the branch so that we can cover any latency -+ from storing the argument and loading its high word. Oh well. */ -+ -+ g = b * y; -+ h = 0.5 * y; -+ -+ /* Handle small numbers by scaling. */ -+ if (__builtin_expect ((u.parts.msw & 0x7ff00000) <= 0x02000000, 0)) -+ return __ieee754_sqrt (b * two108) * twom54; -+ -+#define FMADD(a_, c_, b_) \ -+ ({ double __r; \ -+ __asm__ ("fmadd %[r], %[a], %[c], %[b]\n" \ -+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ -+ __r;}) -+#define FNMSUB(a_, c_, b_) \ -+ ({ double __r; \ -+ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \ -+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ -+ __r;}) -+ -+ r = FNMSUB (g, h, half); -+ g = FMADD (g, r, g); -+ h = FMADD (h, r, h); -+ -+ r = FNMSUB (g, h, half); -+ g = FMADD (g, r, g); -+ h = FMADD (h, r, h); -+ -+ r = FNMSUB (g, h, half); -+ g = FMADD (g, r, g); -+ h = FMADD (h, r, h); -+ -+ /* g is now +/- 1ulp, or exactly equal to, the square root of b. */ -+ -+ /* Final refinement. */ -+ d = FNMSUB (g, g, b); -+ -+ fesetenv_register (fe); -+ return FMADD (d, h, g); -+ } -+ } -+ else if (b < 0) -+ { -+ /* For some reason, some PowerPC32 processors don't implement -+ FE_INVALID_SQRT. */ -+#ifdef FE_INVALID_SQRT -+ feraiseexcept (FE_INVALID_SQRT); -+ -+ fenv_union_t u = { .fenv = fegetenv_register () }; -+ if ((u.l[1] & FE_INVALID) == 0) -+#endif -+ feraiseexcept (FE_INVALID); -+ b = a_nan.value; -+ } -+ return f_wash (b); -+} -Index: libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrtf.c -=================================================================== ---- /dev/null -+++ libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrtf.c -@@ -0,0 +1,101 @@ -+/* Single-precision floating point square root. -+ Copyright (C) 2010 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 -+#include -+#include -+#include -+ -+#include -+#include -+ -+static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; -+static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; -+static const float threehalf = 1.5; -+ -+/* The method is based on the descriptions in: -+ -+ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5; -+ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9 -+ -+ We find the reciprocal square root and use that to compute the actual -+ square root. */ -+ -+#ifdef __STDC__ -+float -+__ieee754_sqrtf (float b) -+#else -+float -+__ieee754_sqrtf (b) -+ float b; -+#endif -+{ -+ if (__builtin_expect (b > 0, 1)) -+ { -+#define FMSUB(a_, c_, b_) \ -+ ({ double __r; \ -+ __asm__ ("fmsub %[r], %[a], %[c], %[b]\n" \ -+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ -+ __r;}) -+#define FNMSUB(a_, c_, b_) \ -+ ({ double __r; \ -+ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \ -+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ -+ __r;}) -+ -+ if (__builtin_expect (b != a_inf.value, 1)) -+ { -+ double y, x; -+ fenv_t fe; -+ -+ fe = fegetenv_register (); -+ -+ relax_fenv_state (); -+ -+ /* Compute y = 1.5 * b - b. Uses fewer constants than y = 0.5 * b. */ -+ y = FMSUB (threehalf, b, b); -+ -+ /* Initial estimate. */ -+ __asm__ ("frsqrte %[x], %[b]\n" : [x] "=f" (x) : [b] "f" (b)); -+ -+ /* Iterate. x_{n+1} = x_n * (1.5 - y * (x_n * x_n)). */ -+ x = x * FNMSUB (y, x * x, threehalf); -+ x = x * FNMSUB (y, x * x, threehalf); -+ x = x * FNMSUB (y, x * x, threehalf); -+ -+ /* All done. */ -+ fesetenv_register (fe); -+ return x * b; -+ } -+ } -+ else if (b < 0) -+ { -+ /* For some reason, some PowerPC32 processors don't implement -+ FE_INVALID_SQRT. */ -+#ifdef FE_INVALID_SQRT -+ feraiseexcept (FE_INVALID_SQRT); -+ -+ fenv_union_t u = { .fenv = fegetenv_register () }; -+ if ((u.l[1] & FE_INVALID) == 0) -+#endif -+ feraiseexcept (FE_INVALID); -+ b = a_nan.value; -+ } -+ return f_washf (b); -+} -Index: libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c -=================================================================== ---- /dev/null -+++ libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c -@@ -0,0 +1,134 @@ -+/* Double-precision floating point square root. -+ Copyright (C) 2010 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 -+#include -+#include -+#include -+ -+#include -+#include -+ -+static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; -+static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; -+static const float two108 = 3.245185536584267269e+32; -+static const float twom54 = 5.551115123125782702e-17; -+static const float half = 0.5; -+ -+/* The method is based on the descriptions in: -+ -+ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5; -+ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9 -+ -+ We find the actual square root and half of its reciprocal -+ simultaneously. */ -+ -+#ifdef __STDC__ -+double -+__ieee754_sqrt (double b) -+#else -+double -+__ieee754_sqrt (b) -+ double b; -+#endif -+{ -+ if (__builtin_expect (b > 0, 1)) -+ { -+ double y, g, h, d, r; -+ ieee_double_shape_type u; -+ -+ if (__builtin_expect (b != a_inf.value, 1)) -+ { -+ fenv_t fe; -+ -+ fe = fegetenv_register (); -+ -+ u.value = b; -+ -+ relax_fenv_state (); -+ -+ __asm__ ("frsqrte %[estimate], %[x]\n" -+ : [estimate] "=f" (y) : [x] "f" (b)); -+ -+ /* Following Muller et al, page 168, equation 5.20. -+ -+ h goes to 1/(2*sqrt(b)) -+ g goes to sqrt(b). -+ -+ We need three iterations to get within 1ulp. */ -+ -+ /* Indicate that these can be performed prior to the branch. GCC -+ insists on sinking them below the branch, however; it seems like -+ they'd be better before the branch so that we can cover any latency -+ from storing the argument and loading its high word. Oh well. */ -+ -+ g = b * y; -+ h = 0.5 * y; -+ -+ /* Handle small numbers by scaling. */ -+ if (__builtin_expect ((u.parts.msw & 0x7ff00000) <= 0x02000000, 0)) -+ return __ieee754_sqrt (b * two108) * twom54; -+ -+#define FMADD(a_, c_, b_) \ -+ ({ double __r; \ -+ __asm__ ("fmadd %[r], %[a], %[c], %[b]\n" \ -+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ -+ __r;}) -+#define FNMSUB(a_, c_, b_) \ -+ ({ double __r; \ -+ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \ -+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ -+ __r;}) -+ -+ r = FNMSUB (g, h, half); -+ g = FMADD (g, r, g); -+ h = FMADD (h, r, h); -+ -+ r = FNMSUB (g, h, half); -+ g = FMADD (g, r, g); -+ h = FMADD (h, r, h); -+ -+ r = FNMSUB (g, h, half); -+ g = FMADD (g, r, g); -+ h = FMADD (h, r, h); -+ -+ /* g is now +/- 1ulp, or exactly equal to, the square root of b. */ -+ -+ /* Final refinement. */ -+ d = FNMSUB (g, g, b); -+ -+ fesetenv_register (fe); -+ return FMADD (d, h, g); -+ } -+ } -+ else if (b < 0) -+ { -+ /* For some reason, some PowerPC32 processors don't implement -+ FE_INVALID_SQRT. */ -+#ifdef FE_INVALID_SQRT -+ feraiseexcept (FE_INVALID_SQRT); -+ -+ fenv_union_t u = { .fenv = fegetenv_register () }; -+ if ((u.l[1] & FE_INVALID) == 0) -+#endif -+ feraiseexcept (FE_INVALID); -+ b = a_nan.value; -+ } -+ return f_wash (b); -+} -Index: libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c -=================================================================== ---- /dev/null -+++ libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c -@@ -0,0 +1,101 @@ -+/* Single-precision floating point square root. -+ Copyright (C) 2010 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 -+#include -+#include -+#include -+ -+#include -+#include -+ -+static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; -+static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; -+static const float threehalf = 1.5; -+ -+/* The method is based on the descriptions in: -+ -+ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5; -+ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9 -+ -+ We find the reciprocal square root and use that to compute the actual -+ square root. */ -+ -+#ifdef __STDC__ -+float -+__ieee754_sqrtf (float b) -+#else -+float -+__ieee754_sqrtf (b) -+ float b; -+#endif -+{ -+ if (__builtin_expect (b > 0, 1)) -+ { -+#define FMSUB(a_, c_, b_) \ -+ ({ double __r; \ -+ __asm__ ("fmsub %[r], %[a], %[c], %[b]\n" \ -+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ -+ __r;}) -+#define FNMSUB(a_, c_, b_) \ -+ ({ double __r; \ -+ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \ -+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ -+ __r;}) -+ -+ if (__builtin_expect (b != a_inf.value, 1)) -+ { -+ double y, x; -+ fenv_t fe; -+ -+ fe = fegetenv_register (); -+ -+ relax_fenv_state (); -+ -+ /* Compute y = 1.5 * b - b. Uses fewer constants than y = 0.5 * b. */ -+ y = FMSUB (threehalf, b, b); -+ -+ /* Initial estimate. */ -+ __asm__ ("frsqrte %[x], %[b]\n" : [x] "=f" (x) : [b] "f" (b)); -+ -+ /* Iterate. x_{n+1} = x_n * (1.5 - y * (x_n * x_n)). */ -+ x = x * FNMSUB (y, x * x, threehalf); -+ x = x * FNMSUB (y, x * x, threehalf); -+ x = x * FNMSUB (y, x * x, threehalf); -+ -+ /* All done. */ -+ fesetenv_register (fe); -+ return x * b; -+ } -+ } -+ else if (b < 0) -+ { -+ /* For some reason, some PowerPC32 processors don't implement -+ FE_INVALID_SQRT. */ -+#ifdef FE_INVALID_SQRT -+ feraiseexcept (FE_INVALID_SQRT); -+ -+ fenv_union_t u = { .fenv = fegetenv_register () }; -+ if ((u.l[1] & FE_INVALID) == 0) -+#endif -+ feraiseexcept (FE_INVALID); -+ b = a_nan.value; -+ } -+ return f_washf (b); -+} -Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/fpu/Implies -=================================================================== ---- /dev/null -+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/fpu/Implies -@@ -0,0 +1 @@ -+powerpc/powerpc32/603e/fpu -Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/fpu/Implies -=================================================================== ---- /dev/null -+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/fpu/Implies -@@ -0,0 +1 @@ -+powerpc/powerpc32/603e/fpu -Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/fpu/Implies -=================================================================== ---- /dev/null -+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/fpu/Implies -@@ -0,0 +1 @@ -+powerpc/powerpc32/603e/fpu -Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/e5500/fpu/Implies -=================================================================== ---- /dev/null -+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/e5500/fpu/Implies -@@ -0,0 +1 @@ -+powerpc/powerpc64/e5500/fpu -Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e5500/fpu/Implies -=================================================================== ---- /dev/null -+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e5500/fpu/Implies -@@ -0,0 +1 @@ -+powerpc/powerpc32/603e/fpu +Upstream-Status: Pending + +2011-03-22 Joseph Myers + + Merge from SG++ 2.11: + + 2010-10-05 Nathan Froyd + + Issue #9382 + + * sysdeps/powerpc/powerpc32/603e/: New directory. + * sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/: New directory. + * sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/: New directory. + * sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/: New directory. + * sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c: Update. + * sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c: Update. + * sysdeps/powerpc/powerpc64/e5500/fpu/Implies: New file. + +Index: libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrt.c +=================================================================== +--- /dev/null ++++ libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrt.c +@@ -0,0 +1,134 @@ ++/* Double-precision floating point square root. ++ Copyright (C) 2010 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 ++#include ++#include ++#include ++ ++#include ++#include ++ ++static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; ++static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; ++static const float two108 = 3.245185536584267269e+32; ++static const float twom54 = 5.551115123125782702e-17; ++static const float half = 0.5; ++ ++/* The method is based on the descriptions in: ++ ++ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5; ++ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9 ++ ++ We find the actual square root and half of its reciprocal ++ simultaneously. */ ++ ++#ifdef __STDC__ ++double ++__ieee754_sqrt (double b) ++#else ++double ++__ieee754_sqrt (b) ++ double b; ++#endif ++{ ++ if (__builtin_expect (b > 0, 1)) ++ { ++ double y, g, h, d, r; ++ ieee_double_shape_type u; ++ ++ if (__builtin_expect (b != a_inf.value, 1)) ++ { ++ fenv_t fe; ++ ++ fe = fegetenv_register (); ++ ++ u.value = b; ++ ++ relax_fenv_state (); ++ ++ __asm__ ("frsqrte %[estimate], %[x]\n" ++ : [estimate] "=f" (y) : [x] "f" (b)); ++ ++ /* Following Muller et al, page 168, equation 5.20. ++ ++ h goes to 1/(2*sqrt(b)) ++ g goes to sqrt(b). ++ ++ We need three iterations to get within 1ulp. */ ++ ++ /* Indicate that these can be performed prior to the branch. GCC ++ insists on sinking them below the branch, however; it seems like ++ they'd be better before the branch so that we can cover any latency ++ from storing the argument and loading its high word. Oh well. */ ++ ++ g = b * y; ++ h = 0.5 * y; ++ ++ /* Handle small numbers by scaling. */ ++ if (__builtin_expect ((u.parts.msw & 0x7ff00000) <= 0x02000000, 0)) ++ return __ieee754_sqrt (b * two108) * twom54; ++ ++#define FMADD(a_, c_, b_) \ ++ ({ double __r; \ ++ __asm__ ("fmadd %[r], %[a], %[c], %[b]\n" \ ++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ ++ __r;}) ++#define FNMSUB(a_, c_, b_) \ ++ ({ double __r; \ ++ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \ ++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ ++ __r;}) ++ ++ r = FNMSUB (g, h, half); ++ g = FMADD (g, r, g); ++ h = FMADD (h, r, h); ++ ++ r = FNMSUB (g, h, half); ++ g = FMADD (g, r, g); ++ h = FMADD (h, r, h); ++ ++ r = FNMSUB (g, h, half); ++ g = FMADD (g, r, g); ++ h = FMADD (h, r, h); ++ ++ /* g is now +/- 1ulp, or exactly equal to, the square root of b. */ ++ ++ /* Final refinement. */ ++ d = FNMSUB (g, g, b); ++ ++ fesetenv_register (fe); ++ return FMADD (d, h, g); ++ } ++ } ++ else if (b < 0) ++ { ++ /* For some reason, some PowerPC32 processors don't implement ++ FE_INVALID_SQRT. */ ++#ifdef FE_INVALID_SQRT ++ feraiseexcept (FE_INVALID_SQRT); ++ ++ fenv_union_t u = { .fenv = fegetenv_register () }; ++ if ((u.l[1] & FE_INVALID) == 0) ++#endif ++ feraiseexcept (FE_INVALID); ++ b = a_nan.value; ++ } ++ return f_wash (b); ++} +Index: libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrtf.c +=================================================================== +--- /dev/null ++++ libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrtf.c +@@ -0,0 +1,101 @@ ++/* Single-precision floating point square root. ++ Copyright (C) 2010 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 ++#include ++#include ++#include ++ ++#include ++#include ++ ++static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; ++static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; ++static const float threehalf = 1.5; ++ ++/* The method is based on the descriptions in: ++ ++ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5; ++ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9 ++ ++ We find the reciprocal square root and use that to compute the actual ++ square root. */ ++ ++#ifdef __STDC__ ++float ++__ieee754_sqrtf (float b) ++#else ++float ++__ieee754_sqrtf (b) ++ float b; ++#endif ++{ ++ if (__builtin_expect (b > 0, 1)) ++ { ++#define FMSUB(a_, c_, b_) \ ++ ({ double __r; \ ++ __asm__ ("fmsub %[r], %[a], %[c], %[b]\n" \ ++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ ++ __r;}) ++#define FNMSUB(a_, c_, b_) \ ++ ({ double __r; \ ++ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \ ++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ ++ __r;}) ++ ++ if (__builtin_expect (b != a_inf.value, 1)) ++ { ++ double y, x; ++ fenv_t fe; ++ ++ fe = fegetenv_register (); ++ ++ relax_fenv_state (); ++ ++ /* Compute y = 1.5 * b - b. Uses fewer constants than y = 0.5 * b. */ ++ y = FMSUB (threehalf, b, b); ++ ++ /* Initial estimate. */ ++ __asm__ ("frsqrte %[x], %[b]\n" : [x] "=f" (x) : [b] "f" (b)); ++ ++ /* Iterate. x_{n+1} = x_n * (1.5 - y * (x_n * x_n)). */ ++ x = x * FNMSUB (y, x * x, threehalf); ++ x = x * FNMSUB (y, x * x, threehalf); ++ x = x * FNMSUB (y, x * x, threehalf); ++ ++ /* All done. */ ++ fesetenv_register (fe); ++ return x * b; ++ } ++ } ++ else if (b < 0) ++ { ++ /* For some reason, some PowerPC32 processors don't implement ++ FE_INVALID_SQRT. */ ++#ifdef FE_INVALID_SQRT ++ feraiseexcept (FE_INVALID_SQRT); ++ ++ fenv_union_t u = { .fenv = fegetenv_register () }; ++ if ((u.l[1] & FE_INVALID) == 0) ++#endif ++ feraiseexcept (FE_INVALID); ++ b = a_nan.value; ++ } ++ return f_washf (b); ++} +Index: libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c +=================================================================== +--- /dev/null ++++ libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c +@@ -0,0 +1,134 @@ ++/* Double-precision floating point square root. ++ Copyright (C) 2010 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 ++#include ++#include ++#include ++ ++#include ++#include ++ ++static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; ++static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; ++static const float two108 = 3.245185536584267269e+32; ++static const float twom54 = 5.551115123125782702e-17; ++static const float half = 0.5; ++ ++/* The method is based on the descriptions in: ++ ++ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5; ++ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9 ++ ++ We find the actual square root and half of its reciprocal ++ simultaneously. */ ++ ++#ifdef __STDC__ ++double ++__ieee754_sqrt (double b) ++#else ++double ++__ieee754_sqrt (b) ++ double b; ++#endif ++{ ++ if (__builtin_expect (b > 0, 1)) ++ { ++ double y, g, h, d, r; ++ ieee_double_shape_type u; ++ ++ if (__builtin_expect (b != a_inf.value, 1)) ++ { ++ fenv_t fe; ++ ++ fe = fegetenv_register (); ++ ++ u.value = b; ++ ++ relax_fenv_state (); ++ ++ __asm__ ("frsqrte %[estimate], %[x]\n" ++ : [estimate] "=f" (y) : [x] "f" (b)); ++ ++ /* Following Muller et al, page 168, equation 5.20. ++ ++ h goes to 1/(2*sqrt(b)) ++ g goes to sqrt(b). ++ ++ We need three iterations to get within 1ulp. */ ++ ++ /* Indicate that these can be performed prior to the branch. GCC ++ insists on sinking them below the branch, however; it seems like ++ they'd be better before the branch so that we can cover any latency ++ from storing the argument and loading its high word. Oh well. */ ++ ++ g = b * y; ++ h = 0.5 * y; ++ ++ /* Handle small numbers by scaling. */ ++ if (__builtin_expect ((u.parts.msw & 0x7ff00000) <= 0x02000000, 0)) ++ return __ieee754_sqrt (b * two108) * twom54; ++ ++#define FMADD(a_, c_, b_) \ ++ ({ double __r; \ ++ __asm__ ("fmadd %[r], %[a], %[c], %[b]\n" \ ++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ ++ __r;}) ++#define FNMSUB(a_, c_, b_) \ ++ ({ double __r; \ ++ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \ ++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ ++ __r;}) ++ ++ r = FNMSUB (g, h, half); ++ g = FMADD (g, r, g); ++ h = FMADD (h, r, h); ++ ++ r = FNMSUB (g, h, half); ++ g = FMADD (g, r, g); ++ h = FMADD (h, r, h); ++ ++ r = FNMSUB (g, h, half); ++ g = FMADD (g, r, g); ++ h = FMADD (h, r, h); ++ ++ /* g is now +/- 1ulp, or exactly equal to, the square root of b. */ ++ ++ /* Final refinement. */ ++ d = FNMSUB (g, g, b); ++ ++ fesetenv_register (fe); ++ return FMADD (d, h, g); ++ } ++ } ++ else if (b < 0) ++ { ++ /* For some reason, some PowerPC32 processors don't implement ++ FE_INVALID_SQRT. */ ++#ifdef FE_INVALID_SQRT ++ feraiseexcept (FE_INVALID_SQRT); ++ ++ fenv_union_t u = { .fenv = fegetenv_register () }; ++ if ((u.l[1] & FE_INVALID) == 0) ++#endif ++ feraiseexcept (FE_INVALID); ++ b = a_nan.value; ++ } ++ return f_wash (b); ++} +Index: libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c +=================================================================== +--- /dev/null ++++ libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c +@@ -0,0 +1,101 @@ ++/* Single-precision floating point square root. ++ Copyright (C) 2010 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 ++#include ++#include ++#include ++ ++#include ++#include ++ ++static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; ++static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; ++static const float threehalf = 1.5; ++ ++/* The method is based on the descriptions in: ++ ++ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5; ++ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9 ++ ++ We find the reciprocal square root and use that to compute the actual ++ square root. */ ++ ++#ifdef __STDC__ ++float ++__ieee754_sqrtf (float b) ++#else ++float ++__ieee754_sqrtf (b) ++ float b; ++#endif ++{ ++ if (__builtin_expect (b > 0, 1)) ++ { ++#define FMSUB(a_, c_, b_) \ ++ ({ double __r; \ ++ __asm__ ("fmsub %[r], %[a], %[c], %[b]\n" \ ++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ ++ __r;}) ++#define FNMSUB(a_, c_, b_) \ ++ ({ double __r; \ ++ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \ ++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \ ++ __r;}) ++ ++ if (__builtin_expect (b != a_inf.value, 1)) ++ { ++ double y, x; ++ fenv_t fe; ++ ++ fe = fegetenv_register (); ++ ++ relax_fenv_state (); ++ ++ /* Compute y = 1.5 * b - b. Uses fewer constants than y = 0.5 * b. */ ++ y = FMSUB (threehalf, b, b); ++ ++ /* Initial estimate. */ ++ __asm__ ("frsqrte %[x], %[b]\n" : [x] "=f" (x) : [b] "f" (b)); ++ ++ /* Iterate. x_{n+1} = x_n * (1.5 - y * (x_n * x_n)). */ ++ x = x * FNMSUB (y, x * x, threehalf); ++ x = x * FNMSUB (y, x * x, threehalf); ++ x = x * FNMSUB (y, x * x, threehalf); ++ ++ /* All done. */ ++ fesetenv_register (fe); ++ return x * b; ++ } ++ } ++ else if (b < 0) ++ { ++ /* For some reason, some PowerPC32 processors don't implement ++ FE_INVALID_SQRT. */ ++#ifdef FE_INVALID_SQRT ++ feraiseexcept (FE_INVALID_SQRT); ++ ++ fenv_union_t u = { .fenv = fegetenv_register () }; ++ if ((u.l[1] & FE_INVALID) == 0) ++#endif ++ feraiseexcept (FE_INVALID); ++ b = a_nan.value; ++ } ++ return f_washf (b); ++} +Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/fpu/Implies +=================================================================== +--- /dev/null ++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/fpu/Implies +@@ -0,0 +1 @@ ++powerpc/powerpc32/603e/fpu +Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/fpu/Implies +=================================================================== +--- /dev/null ++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/fpu/Implies +@@ -0,0 +1 @@ ++powerpc/powerpc32/603e/fpu +Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/fpu/Implies +=================================================================== +--- /dev/null ++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/fpu/Implies +@@ -0,0 +1 @@ ++powerpc/powerpc32/603e/fpu +Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/e5500/fpu/Implies +=================================================================== +--- /dev/null ++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/e5500/fpu/Implies +@@ -0,0 +1 @@ ++powerpc/powerpc64/e5500/fpu +Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e5500/fpu/Implies +=================================================================== +--- /dev/null ++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e5500/fpu/Implies +@@ -0,0 +1 @@ ++powerpc/powerpc32/603e/fpu -- cgit v1.2.3-54-g00ecf