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| author | Jakub Jelinek <jakub@redhat.com> | 2009-09-01 15:30:12 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-09-01 15:30:12 -0700 |
| commit | 240441038f2d2b1a32d4239270c7f76531a484f3 (patch) | |
| tree | 0118c5e89428ef38129e1f3cd5d2d364ef0c51b0 /sysdeps | |
| parent | c2735e958acc6a69daab71fdc463564860f20794 (diff) | |
| download | glibc-240441038f2d2b1a32d4239270c7f76531a484f3.tar.gz glibc-240441038f2d2b1a32d4239270c7f76531a484f3.tar.xz glibc-240441038f2d2b1a32d4239270c7f76531a484f3.zip | |
Fix x86_64 bits/mathinline.h for -m32 compilation.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/x86_64/fpu/bits/mathinline.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/bits/mathinline.h b/sysdeps/x86_64/fpu/bits/mathinline.h index ece0f02678..dc58f67d6c 100644 --- a/sysdeps/x86_64/fpu/bits/mathinline.h +++ b/sysdeps/x86_64/fpu/bits/mathinline.h @@ -22,6 +22,8 @@ # error "Never use <bits/mathinline.h> directly; include <math.h> instead." #endif +#include <bits/wordsize.h> + #ifndef __extern_inline # define __MATH_INLINE __inline #else @@ -35,16 +37,26 @@ __MATH_INLINE int __NTH (__signbitf (float __x)) { +#if __WORDSIZE == 32 + __extension__ union { float __f; int __i; } __u = { __f: __x }; + return __u.__i < 0; +#else int __m; __asm ("pmovmskb %1, %0" : "=r" (__m) : "x" (__x)); return __m & 0x8; +#endif } __MATH_INLINE int __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; __asm ("pmovmskb %1, %0" : "=r" (__m) : "x" (__x)); return __m & 0x80; +#endif } __MATH_INLINE int __NTH (__signbitl (long double __x)) |