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Fix x86_64 bits/mathinline.h for -m32 compilation.

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Jakub Jelinek 2009-09-01 15:30:12 -07:00 committed by Ulrich Drepper
parent c2735e958a
commit 240441038f
2 changed files with 17 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2009-09-01 Jakub Jelinek <jakub@redhat.com>
* sysdeps/x86_64/fpu/bits/mathinline.h: Include bits/wordsize.h.
(__signbitf, __signbit): Only use SSE inline asm for 64-bit.
2009-08-31 Andreas Schwab <schwab@redhat.com> 2009-08-31 Andreas Schwab <schwab@redhat.com>
* sysdeps/x86_64/fpu/bits/mathinline.h: Use __asm instead of asm. * sysdeps/x86_64/fpu/bits/mathinline.h: Use __asm instead of asm.

12
sysdeps/x86_64/fpu/bits/mathinline.h
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@ -22,6 +22,8 @@
# error "Never use <bits/mathinline.h> directly; include <math.h> instead." # error "Never use <bits/mathinline.h> directly; include <math.h> instead."
#endif #endif
#include <bits/wordsize.h>
#ifndef __extern_inline #ifndef __extern_inline
# define __MATH_INLINE __inline # define __MATH_INLINE __inline
#else #else
@ -35,16 +37,26 @@
__MATH_INLINE int __MATH_INLINE int
__NTH (__signbitf (float __x)) __NTH (__signbitf (float __x))
{ {
#if __WORDSIZE == 32
__extension__ union { float __f; int __i; } __u = { __f: __x };
return __u.__i < 0;
#else
int __m; int __m;
__asm ("pmovmskb %1, %0" : "=r" (__m) : "x" (__x)); __asm ("pmovmskb %1, %0" : "=r" (__m) : "x" (__x));
return __m & 0x8; return __m & 0x8;
#endif
} }
__MATH_INLINE int __MATH_INLINE int
__NTH (__signbit (double __x)) __NTH (__signbit (double __x))
{ {
#if __WORDSIZE == 32
__extension__ union { double __d; int __i[2]; } __u = { __d: __x };
return __u.__i[1] < 0;
#else
int __m; int __m;
__asm ("pmovmskb %1, %0" : "=r" (__m) : "x" (__x)); __asm ("pmovmskb %1, %0" : "=r" (__m) : "x" (__x));
return __m & 0x80; return __m & 0x80;
#endif
} }
__MATH_INLINE int __MATH_INLINE int
__NTH (__signbitl (long double __x)) __NTH (__signbitl (long double __x))