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powerpc: Convert __ieee754_sqrt{,f} from macros to inlines.

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This commit is contained in:
Richard Henderson 2012-03-07 09:16:59 -08:00
parent 15194b4b3d
commit 67bb6da679
2 changed files with 41 additions and 70 deletions
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5
ChangeLog
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@ -1,5 +1,10 @@
2012-03-08 Richard Henderson <rth@twiddle.net>
* sysdeps/powerpc/fpu/math_private.h (__ieee754_sqrt): Convert
from macro to inline function; merge with the
!__LIBC_INTERNAL_MATH_INLINES version.
(__ieee754_sqrtf): Likewise.
* sysdeps/x86_64/fpu/math_private.h (__rint): Convert from macro
to inline function.
(__rintf, __floor, __floorf): Likewise.

106
sysdeps/powerpc/fpu/math_private.h
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@ -23,35 +23,49 @@
#include <sysdep.h>
#include <ldsodefs.h>
#include <dl-procinfo.h>
#include <math/math_private.h>
# if __WORDSIZE == 64 || defined _ARCH_PWR4
# define __CPU_HAS_FSQRT 1
#ifndef __ieee754_sqrt
# define __ieee754_sqrt(x) \
({ double __z; \
__asm __volatile ( \
" fsqrt %0,%1\n" \
: "=f" (__z) \
: "f"(x)); \
__z; })
#endif
#ifndef __ieee754_sqrtf
# define __ieee754_sqrtf(x) \
({ float __z; \
__asm __volatile ( \
" fsqrts %0,%1\n" \
: "=f" (__z) \
: "f"(x)); \
__z; })
#endif
# else
# define __CPU_HAS_FSQRT ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0)
# endif // __WORDSIZE == 64 || defined _ARCH_PWR4
# endif
extern double __slow_ieee754_sqrt (double);
extern __always_inline double
__ieee754_sqrt (double __x)
{
double __z;
if (__CPU_HAS_FSQRT)
{
/* Volatile is required to prevent the compiler from moving the
fsqrt instruction above the branch. */
__asm __volatile ("fsqrt %0,%1" : "=f" (__z) : "f" (__x));
}
else
__z = __slow_ieee754_sqrt(__x);
return __z;
}
extern float __slow_ieee754_sqrtf (float);
extern __always_inline float
__ieee754_sqrtf (float __x)
{
float __z;
if (__CPU_HAS_FSQRT)
{
/* Volatile is required to prevent the compiler from moving the
fsqrts instruction above the branch. */
__asm __volatile ("fsqrts %0,%1" : "=f" (__z) : "f" (__x));
}
else
__z = __slow_ieee754_sqrtf(__x);
return __z;
}
#if defined _ARCH_PWR5X
@ -162,52 +176,4 @@
#endif /* defined _ARCH_PWR6 */
# ifndef __LIBC_INTERNAL_MATH_INLINES
extern double __slow_ieee754_sqrt (double);
__inline double
__ieee754_sqrt (double __x)
{
double __z;
/* If the CPU is 64-bit we can use the optional FP instructions. */
if (__CPU_HAS_FSQRT)
{
/* Volatile is required to prevent the compiler from moving the
fsqrt instruction above the branch. */
__asm __volatile (
" fsqrt %0,%1\n"
: "=f" (__z)
: "f" (__x));
}
else
__z = __slow_ieee754_sqrt(__x);
return __z;
}
extern float __slow_ieee754_sqrtf (float);
__inline float
__ieee754_sqrtf (float __x)
{
float __z;
/* If the CPU is 64-bit we can use the optional FP instructions. */
if (__CPU_HAS_FSQRT)
{
/* Volatile is required to prevent the compiler from moving the
fsqrts instruction above the branch. */
__asm __volatile (
" fsqrts %0,%1\n"
: "=f" (__z)
: "f" (__x));
}
else
__z = __slow_ieee754_sqrtf(__x);
return __z;
}
#endif /* __LIBC_INTERNAL_MATH_INLINES */
#endif /* _PPC_MATH_PRIVATE_H_ */