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author | Joseph Myers <joseph@codesourcery.com> | 2017-08-25 11:33:04 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2017-08-25 11:33:04 +0000 |
commit | bba5c930947e2b440b7d1eafdd3c9e7ff2d28978 (patch) | |
tree | 8cad09406dad17a6a12d7ccfdcd87a978970e407 /sysdeps/powerpc | |
parent | 3d7b66f66cb223e899a7ebc0f4c20f13e711c9e0 (diff) | |
download | glibc-bba5c930947e2b440b7d1eafdd3c9e7ff2d28978.tar.gz glibc-bba5c930947e2b440b7d1eafdd3c9e7ff2d28978.tar.xz glibc-bba5c930947e2b440b7d1eafdd3c9e7ff2d28978.zip |
Remove powerpc32 sqrt wrappers.
This patch removes the powerpc32-specific wrappers for sqrt and sqrtf. These wrappers, by adding architecture-specific uses of _LIB_VERSION and __kernel_standard, unnecessarily complicate cleanups of libm error handling. They also do not serve a useful optimization purpose. GCC knows about sqrt as a built-in function, and can generate direct calls to a hardware square root instruction, either on its own, in the -fno-math-errno case, or together with an inline check for the argument being negative and a call to the out-of-line sqrt function for error handling only in that case (and has been able to do so for a long time). Thus in practice the wrapper will only be called only in the case of negative arguments, which is not a case it is useful to optimize for. Tested with build-many-glibcs.py for powerpc-linux-gnu-power4. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-power5.S: Remove file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-power5.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S: Likewise. * sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S: Likewise. * sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile (libm-sysdep-routines): Remove w_sqrt_compat-power5, w_sqrt_compat-ppc32, w_sqrtf_compat-power5 and w_sqrtf_compat-ppc32.
Diffstat (limited to 'sysdeps/powerpc')
11 files changed, 0 insertions, 604 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile index 5afbade15f..4e85021d50 100644 --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile @@ -9,8 +9,6 @@ sysdep_routines += s_isnan-power7 s_isnan-power6 s_isnan-power5 s_isnan-ppc32 \ libm-sysdep_routines += s_llrintf-power6 s_llrintf-ppc32 s_llrint-power6 \ s_llrint-ppc32 s_llround-power6 s_llround-power5+ \ s_llround-ppc32 s_isnan-power7 \ - w_sqrt_compat-power5 w_sqrt_compat-ppc32 \ - w_sqrtf_compat-power5 w_sqrtf_compat-ppc32 \ s_isnan-power6 s_isnan-power5 s_isnan-ppc32 \ s_isnanf-power6 s_isnanf-power5 s_isinf-power7 \ s_isinf-ppc32 s_isinff-ppc32 s_finite-power7 \ diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-power5.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-power5.S deleted file mode 100644 index 7c5a504177..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-power5.S +++ /dev/null @@ -1,31 +0,0 @@ -/* sqrt function. PowerPC32/POWER5 version. - Copyright (C) 2013-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> - -#undef weak_alias -#define weak_alias(a,b) -#undef strong_alias -#define strong_alias(a,b) -#undef compat_symbol -#define compat_symbol(a,b,c,d) - -#define __sqrt __sqrt_power5 - -#include <sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S> diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-ppc32.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-ppc32.S deleted file mode 100644 index 534e934ac9..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-ppc32.S +++ /dev/null @@ -1,31 +0,0 @@ -/* sqrt function. PowerPC32 default version. - Copyright (C) 2013-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> - -#undef weak_alias -#define weak_alias(a,b) -#undef strong_alias -#define strong_alias(a,b) -#undef compat_symbol -#define compat_symbol(a,b,c,d) - -#define __sqrt __sqrt_ppc32 - -#include <sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S> diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat.c deleted file mode 100644 index 1e1892034e..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat.c +++ /dev/null @@ -1,40 +0,0 @@ -/* Multiple versions of sqrt. - Copyright (C) 2013-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <math.h> -#include <math_ldbl_opt.h> -#include <shlib-compat.h> -#include "init-arch.h" - -extern __typeof (__sqrt) __sqrt_ppc32 attribute_hidden; -extern __typeof (__sqrt) __sqrt_power5 attribute_hidden; - -libc_ifunc (__sqrt, - (hwcap & PPC_FEATURE_POWER5) - ? __sqrt_power5 - : __sqrt_ppc32); - -weak_alias (__sqrt, sqrt) - -#ifdef NO_LONG_DOUBLE -strong_alias (__sqrt, __sqrtl) -weak_alias (__sqrt, sqrtl) -#endif -#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) -compat_symbol (libm, __sqrt, sqrtl, GLIBC_2_0); -#endif diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-power5.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-power5.S deleted file mode 100644 index eacc042850..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-power5.S +++ /dev/null @@ -1,26 +0,0 @@ -/* sqrtf function. PowerPC32/POWER5 version. - Copyright (C) 2013-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - -#undef weak_alias -#define weak_alias(a,b) - -#define __sqrtf __sqrtf_power5 - -#include <sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S> diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-ppc32.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-ppc32.S deleted file mode 100644 index 72191fc9a5..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-ppc32.S +++ /dev/null @@ -1,26 +0,0 @@ -/* sqrtf function. PowerPC32 default version. - Copyright (C) 2013-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - -#undef weak_alias -#define weak_alias(a,b) - -#define __sqrtf __sqrtf_ppc32 - -#include <sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S> diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat.c deleted file mode 100644 index bbab4d4f93..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat.c +++ /dev/null @@ -1,32 +0,0 @@ -/* Multiple versions of sqrtf. - Copyright (C) 2013-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <math.h> -#include <math_ldbl_opt.h> -#include <shlib-compat.h> -#include "init-arch.h" - -extern __typeof (__sqrtf) __sqrtf_ppc32 attribute_hidden; -extern __typeof (__sqrtf) __sqrtf_power5 attribute_hidden; - -libc_ifunc (__sqrtf, - (hwcap & PPC_FEATURE_POWER5) - ? __sqrtf_power5 - : __sqrtf_ppc32); - -weak_alias (__sqrtf, sqrtf) diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S b/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S deleted file mode 100644 index 82e3baffd4..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S +++ /dev/null @@ -1,109 +0,0 @@ -/* sqrt function. PowerPC32 version. - Copyright (C) 2007-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> -#include <math-svid-compat.h> - -/* double [fp1] sqrt (double x [fp1]) - Power4 (ISA V2.0) and above implement sqrt in hardware (not optional). - The fsqrt instruction generates the correct value for all inputs and - sets the appropriate floating point exceptions. Extended checking is - only needed to set errno (via __kernel_standard) if the input value - is negative. - - The fsqrt will set FPCC and FU (Floating Point Unordered or NaN - to indicated that the input value was negative or NaN. Use Move to - Condition Register from FPSCR to copy the FPCC field to cr1. The - branch on summary overflow transfers control to w_sqrt to process - any error conditions. Otherwise we can return the result directly. - - This part of the function is a leaf routine, so no need to stack a - frame or execute prologue/epilogue code. This means it is safe to - transfer directly to w_sqrt as long as the input value (f1) is - preserved. Putting the sqrt result into f2 (double parameter 2) - allows passing both the input value and sqrt result into the extended - wrapper so there is no need to recompute. - - This tactic avoids the overhead of stacking a frame for the normal - (non-error) case. Until gcc supports prologue shrink-wrapping - this is the best we can do. */ - - .section ".text" - .machine power4 -EALIGN (__sqrt, 5, 0) - fsqrt fp2,fp1 - mcrfs cr1,4 - bso- cr1,.Lw_sqrt - fmr fp1,fp2 - blr - .align 4 -.Lw_sqrt: - mflr r0 - stwu r1,-16(r1) - cfi_adjust_cfa_offset(16) - fmr fp12,fp2 - stw r0,20(r1) - stw r30,8(r1) - cfi_offset(lr,20-16) - cfi_offset(r30,8-16) -#ifdef SHARED - SETUP_GOT_ACCESS(r30,got_label) - addis r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@ha - addi r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@l - lwz r9,_LIB_VERSION@got(30) - lwz r0,0(r9) -#else - lis r9,_LIB_VERSION@ha - lwz r0,_LIB_VERSION@l(r9) -#endif -/* if (_LIB_VERSION == _IEEE_) return z; */ - cmpwi cr7,r0,-1 - beq- cr7,.L4 -/* if (x != x) return z; !isnan*/ - fcmpu cr7,fp1,fp1 - bne- cr7,.L4 -/* if (x < 0.0) - return __kernel_standard (x, x, 26) */ - fmr fp2,fp1 - fabs fp0,fp1 - li r3,26 - fcmpu cr7,fp1,fp0 - bne- cr7,.L11 -.L4: - lwz r0,20(r1) - fmr fp1,fp12 - lwz r30,8(r1) - addi r1,r1,16 - mtlr r0 - blr -.L11: - bl __kernel_standard@plt - fmr fp12,fp1 - b .L4 - END (__sqrt) - -weak_alias (__sqrt, sqrt) - -#ifdef NO_LONG_DOUBLE -weak_alias (__sqrt, sqrtl) -strong_alias (__sqrt, __sqrtl) -#endif -#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) -compat_symbol (libm, __sqrt, sqrtl, GLIBC_2_0) -#endif diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S b/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S deleted file mode 100644 index 0c663529e9..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S +++ /dev/null @@ -1,101 +0,0 @@ -/* sqrtf function. PowerPC32 version. - Copyright (C) 2007-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> -#include <math-svid-compat.h> - -/* float [fp1] sqrts (float x [fp1]) - Power4 (ISA V2.0) and above implement sqrt in hardware (not optional). - The fsqrts instruction generates the correct value for all inputs and - sets the appropriate floating point exceptions. Extended checking is - only needed to set errno (via __kernel_standard) if the input value - is negative. - - The fsqrts will set FPCC and FU (Floating Point Unordered or NaN - to indicated that the input value was negative or NaN. Use Move to - Condition Register from FPSCR to copy the FPCC field to cr1. The - branch on summary overflow transfers control to w_sqrt to process - any error conditions. Otherwise we can return the result directly. - - This part of the function is a leaf routine, so no need to stack a - frame or execute prologue/epilogue code. This means it is safe to - transfer directly to w_sqrt as long as the input value (f1) is - preserved. Putting the sqrt result into f2 (float parameter 2) - allows passing both the input value and sqrt result into the extended - wrapper so there is no need to recompute. - - This tactic avoids the overhead of stacking a frame for the normal - (non-error) case. Until gcc supports prologue shrink-wrapping - this is the best we can do. */ - - .section ".text" - .machine power4 -EALIGN (__sqrtf, 5, 0) - fsqrts fp2,fp1 - mcrfs cr1,4 - bso- cr1,.Lw_sqrtf - fmr fp1,fp2 - blr - .align 4 -.Lw_sqrtf: - mflr r0 - stwu r1,-16(r1) - cfi_adjust_cfa_offset(16) - fmr fp12,fp2 - stw r0,20(r1) - stw r30,8(r1) - cfi_offset(lr,20-16) - cfi_offset(r30,8-16) -#ifdef SHARED - SETUP_GOT_ACCESS(r30,got_label) - addis r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@ha - addi r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@l - lwz r9,_LIB_VERSION@got(30) - lwz r0,0(r9) -#else - lis r9,_LIB_VERSION@ha - lwz r0,_LIB_VERSION@l(r9) -#endif -/* if (_LIB_VERSION == _IEEE_) return z; */ - cmpwi cr7,r0,-1 - beq- cr7,.L4 -/* if (x != x, 0) return z; !isnan */ - fcmpu cr7,fp1,fp1 - bne- cr7,.L4 -/* if (x < 0.0) - return __kernel_standard (x, x, 126) */ - fmr fp2,fp1 - fabs fp0,fp1 - li r3,126 - fcmpu cr7,1,0 - bne- cr7,.L11 -.L4: - lwz r0,20(r1) - fmr fp1,fp12 - lwz r30,8(r1) - addi r1,r1,16 - mtlr r0 - blr -.L11: - bl __kernel_standard@plt - fmr fp12,fp1 - b .L4 - END (__sqrtf) - -weak_alias (__sqrtf, sqrtf) diff --git a/sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S b/sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S deleted file mode 100644 index ecefdc3283..0000000000 --- a/sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S +++ /dev/null @@ -1,107 +0,0 @@ -/* sqrt function. PowerPC32 version. - Copyright (C) 2007-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> -#include <math-svid-compat.h> - -/* double [fp1] sqrt (double x [fp1]) - Power4 (ISA V2.0) and above implement sqrt in hardware (not optional). - The fsqrt instruction generates the correct value for all inputs and - sets the appropriate floating point exceptions. Extended checking is - only needed to set errno (via __kernel_standard) if the input value - is negative. - - So compare the input value against the absolute value of itself. - This will compare equal unless the value is negative (EDOM) or a NAN, - in which case we branch to the extend wrapper. If equal we can return - the result directly. - - This part of the function looks like a leaf routine, so no need to - stack a frame or execute prologue/epilogue code. It is safe to - branch directly to w_sqrt as long as the input value (f1) is - preserved. Putting the sqrt result into f2 (float parameter 2) - allows passing both the input value and sqrt result into the extended - wrapper so there is no need to recompute. - - This tactic avoids the overhead of stacking a frame for the normal - (non-error) case. Until gcc supports prologue shrink-wrapping - this is the best we can do. */ - - .section ".text" - .machine power4 -EALIGN (__sqrt, 5, 0) - fabs fp0,fp1 - fsqrt fp2,fp1 - fcmpu cr1,fp0,fp1 - bne- cr1,.Lw_sqrt - fmr fp1,fp2 - blr - .align 4 -.Lw_sqrt: - mflr r0 - stwu r1,-16(r1) - cfi_adjust_cfa_offset(16) - fmr fp12,fp2 - stw r0,20(r1) - stw r30,8(r1) - cfi_offset(lr,20-16) - cfi_offset(r30,8-16) -#ifdef SHARED - SETUP_GOT_ACCESS(r30,got_label) - addis r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@ha - addi r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@l - lwz r9,_LIB_VERSION@got(30) - lwz r0,0(r9) -#else - lis r9,_LIB_VERSION@ha - lwz r0,_LIB_VERSION@l(r9) -#endif -/* if (_LIB_VERSION == _IEEE_) return z; */ - cmpwi cr7,r0,-1 - beq- cr7,.L4 -/* if (x != x) return z; !isnan*/ - fcmpu cr7,fp1,fp1 - bne- cr7,.L4 -/* if (x < 0.0) - return __kernel_standard (x, x, 26) */ - fmr fp2,fp1 - li r3,26 - bne- cr1,.L11 -.L4: - lwz r0,20(r1) - fmr fp1,fp12 - lwz r30,8(r1) - addi r1,r1,16 - mtlr r0 - blr -.L11: - bl __kernel_standard@plt - fmr fp12,fp1 - b .L4 - END (__sqrt) - -weak_alias (__sqrt, sqrt) - -#ifdef NO_LONG_DOUBLE -weak_alias (__sqrt, sqrtl) -strong_alias (__sqrt, __sqrtl) -#endif -#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) -compat_symbol (libm, __sqrt, sqrtl, GLIBC_2_0) -#endif diff --git a/sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S b/sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S deleted file mode 100644 index 9ae0c5f47d..0000000000 --- a/sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S +++ /dev/null @@ -1,99 +0,0 @@ -/* sqrtf function. PowerPC32 version. - Copyright (C) 2007-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> -#include <math-svid-compat.h> - -/* float [fp1] sqrts (float x [fp1]) - Power4 (ISA V2.0) and above implement sqrt in hardware (not optional). - The fsqrts instruction generates the correct value for all inputs and - sets the appropriate floating point exceptions. Extended checking is - only needed to set errno (via __kernel_standard) if the input value - is negative. - - So compare the input value against the absolute value of itself. - This will compare equal unless the value is negative (EDOM) or a NAN, - in which case we branch to the extend wrapper. If equal we can return - the result directly. - - This part of the function looks like a leaf routine, so no need to - stack a frame or execute prologue/epilogue code. It is safe to - branch directly to w_sqrt as long as the input value (f1) is - preserved. Putting the sqrt result into f2 (float parameter 2) - allows passing both the input value and sqrt result into the extended - wrapper so there is no need to recompute. - - This tactic avoids the overhead of stacking a frame for the normal - (non-error) case. Until gcc supports prologue shrink-wrapping - this is the best we can do. */ - - .section ".text" - .machine power4 -EALIGN (__sqrtf, 5, 0) - fabs fp0,fp1 - fsqrts fp2,fp1 - fcmpu cr1,fp0,fp1 - bne- cr1,.Lw_sqrtf - fmr fp1,fp2 - blr - .align 4 -.Lw_sqrtf: - mflr r0 - stwu r1,-16(r1) - cfi_adjust_cfa_offset(16) - fmr fp12,fp2 - stw r0,20(r1) - stw r30,8(r1) - cfi_offset(lr,20-16) - cfi_offset(r30,8-16) -#ifdef SHARED - SETUP_GOT_ACCESS(r30,got_label) - addis r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@ha - addi r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@l - lwz r9,_LIB_VERSION@got(30) - lwz r0,0(r9) -#else - lis r9,_LIB_VERSION@ha - lwz r0,_LIB_VERSION@l(r9) -#endif -/* if (_LIB_VERSION == _IEEE_) return z; */ - cmpwi cr7,r0,-1 - beq- cr7,.L4 -/* if (x != x, 0) return z; !isnan */ - fcmpu cr7,fp1,fp1 - bne- cr7,.L4 -/* if (x < 0.0) - return __kernel_standard (x, x, 126) */ - fmr fp2,fp1 - li r3,126 - bne- cr1,.L11 -.L4: - lwz r0,20(r1) - fmr fp1,fp12 - lwz r30,8(r1) - addi r1,r1,16 - mtlr r0 - blr -.L11: - bl __kernel_standard@plt - fmr fp12,fp1 - b .L4 - END (__sqrtf) - -weak_alias (__sqrtf, sqrtf) |