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* sysdeps/powerpc/fpu/e_sqrt.c: Avoid call to fetestexcept. 

* sysdeps/powerpc/fpu/e_sqrtf.c: Likewise.
This commit is contained in:
Ulrich Drepper 2008-04-12 03:39:30 +00:00
parent 3cc56f9208
commit c3a0ead420
3 changed files with 13 additions and 6 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2008-04-11 Ulrich Drepper <drepper@redhat.com> 2008-04-11 Ulrich Drepper <drepper@redhat.com>
* sysdeps/powerpc/fpu/e_sqrt.c: Avoid call to fetestexcept.
* sysdeps/powerpc/fpu/e_sqrtf.c: Likewise.
* scripts/data/localplt-powerpc64-linux-gnu.data: New file. * scripts/data/localplt-powerpc64-linux-gnu.data: New file.
* sysdeps/powerpc/fpu/fenv_libc.h: Add libm_hidden_proto for * sysdeps/powerpc/fpu/fenv_libc.h: Add libm_hidden_proto for

8
sysdeps/powerpc/fpu/e_sqrt.c
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@ -1,5 +1,5 @@
/* Double-precision floating point square root. /* Double-precision floating point square root.
Copyright (C) 1997, 2002, 2003, 2004 Free Software Foundation, Inc. Copyright (C) 1997, 2002, 2003, 2004, 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -150,7 +150,9 @@ __slow_ieee754_sqrt (x)
FE_INVALID_SQRT. */ FE_INVALID_SQRT. */
#ifdef FE_INVALID_SQRT #ifdef FE_INVALID_SQRT
feraiseexcept (FE_INVALID_SQRT); feraiseexcept (FE_INVALID_SQRT);
if (!fetestexcept (FE_INVALID))
fenv_union_t u = { .fenv = fegetenv_register () };
if ((u.l[1] & FE_INVALID) == 0)
#endif #endif
feraiseexcept (FE_INVALID); feraiseexcept (FE_INVALID);
x = a_nan.value; x = a_nan.value;
@ -172,7 +174,7 @@ __ieee754_sqrt (x)
/* If the CPU is 64-bit we can use the optional FP instructions. */ /* If the CPU is 64-bit we can use the optional FP instructions. */
if (__CPU_HAS_FSQRT) if (__CPU_HAS_FSQRT)
{ {
/* Volatile is required to prevent the compiler from moving the /* Volatile is required to prevent the compiler from moving the
fsqrt instruction above the branch. */ fsqrt instruction above the branch. */
__asm __volatile (" fsqrt %0,%1\n" __asm __volatile (" fsqrt %0,%1\n"
:"=f" (z):"f" (x)); :"=f" (z):"f" (x));

8
sysdeps/powerpc/fpu/e_sqrtf.c
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@ -1,5 +1,5 @@
/* Single-precision floating point square root. /* Single-precision floating point square root.
Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc. Copyright (C) 1997, 2003, 2004, 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -126,7 +126,9 @@ __slow_ieee754_sqrtf (x)
FE_INVALID_SQRT. */ FE_INVALID_SQRT. */
#ifdef FE_INVALID_SQRT #ifdef FE_INVALID_SQRT
feraiseexcept (FE_INVALID_SQRT); feraiseexcept (FE_INVALID_SQRT);
if (!fetestexcept (FE_INVALID))
fenv_union_t u = { .fenv = fegetenv_register () };
if ((u.l[1] & FE_INVALID) == 0)
#endif #endif
feraiseexcept (FE_INVALID); feraiseexcept (FE_INVALID);
x = a_nan.value; x = a_nan.value;
@ -149,7 +151,7 @@ __ieee754_sqrtf (x)
/* If the CPU is 64-bit we can use the optional FP instructions. */ /* If the CPU is 64-bit we can use the optional FP instructions. */
if (__CPU_HAS_FSQRT) if (__CPU_HAS_FSQRT)
{ {
/* Volatile is required to prevent the compiler from moving the /* Volatile is required to prevent the compiler from moving the
fsqrt instruction above the branch. */ fsqrt instruction above the branch. */
__asm __volatile (" fsqrts %0,%1\n" __asm __volatile (" fsqrts %0,%1\n"
:"=f" (z):"f" (x)); :"=f" (z):"f" (x));