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Add fmax and fmin inlines for x86-64

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Ulrich Drepper 2011-09-15 13:11:08 -04:00
parent ee4d03150a
commit 4c1a1f71c0
2 changed files with 46 additions and 5 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2011-09-15 Ulrich Drepper <drepper@gmail.com>
* sysdeps/x86_64/fpu/bits/mathinline.h: Add fmax and fmin optimizations
for __FINITE_MATH_ONLY__ == 1.
2011-09-14 Ulrich Drepper <drepper@gmail.com>
* sysdeps/x86_64/fpu/s_copysign.S [ELF]: Use correct section.

46
sysdeps/x86_64/fpu/bits/mathinline.h
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@ -64,8 +64,11 @@ __NTH (__signbitl (long double __x))
return (__u.__i[2] & 0x8000) != 0;
}
#ifdef __USE_ISOC99
__BEGIN_NAMESPACE_C99
/* Round to nearest integer. */
# if __WORDSIZE == 64 || defined __SSE_MATH__
# if __WORDSIZE == 64 || defined __SSE_MATH__
__MATH_INLINE long int
__NTH (lrintf (float __x))
{
@ -73,8 +76,8 @@ __NTH (lrintf (float __x))
asm ("cvtss2si %1, %0" : "=r" (__res) : "xm" (__x));
return __res;
}
# endif
# if __WORDSIZE == 64 || defined __SSE2_MATH__
# endif
# if __WORDSIZE == 64 || defined __SSE2_MATH__
__MATH_INLINE long int
__NTH (lrint (double __x))
{
@ -82,8 +85,8 @@ __NTH (lrint (double __x))
asm ("cvtsd2si %1, %0" : "=r" (__res) : "xm" (__x));
return __res;
}
# endif
# if __WORDSIZE == 64
# endif
# if __WORDSIZE == 64
__MATH_INLINE long long int
__NTH (llrintf (float __x))
{
@ -98,6 +101,39 @@ __NTH (llrint (double __x))
asm ("cvtsd2si %1, %0" : "=r" (__res) : "xm" (__x));
return __res;
}
# endif
# if __FINITE_MATH_ONLY__ == 1 && (__WORDSIZE == 64 || defined __SSE2_MATH__)
/* Determine maximum of two values. */
__MATH_INLINE float
__NTH (fmaxf (float __x, float __y))
{
asm ("maxss %1, %0" : "+x" (__x) : "xm" (__y));
return __x;
}
__MATH_INLINE double
__NTH (fmax (double __x, double __y))
{
asm ("maxsd %1, %0" : "+x" (__x) : "xm" (__y));
return __x;
}
/* Determine minimum of two values. */
__MATH_INLINE float
__NTH (fminf (float __x, float __y))
{
asm ("minss %1, %0" : "+x" (__x) : "xm" (__y));
return __x;
}
__MATH_INLINE double
__NTH (fmin (double __x, double __y))
{
asm ("minsd %1, %0" : "+x" (__x) : "xm" (__y));
return __x;
}
# endif
__END_NAMESPACE_C99
# endif
#endif