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| author | Ulrich Drepper <drepper@gmail.com> | 2011-10-12 11:27:51 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-10-12 11:27:51 -0400 |
| commit | 0ac5ae2335292908f39031b1ea9fe8edce433c0f (patch) | |
| tree | f9d26c8abc0de39d18d4c13e70f6022cdc6b461f /sysdeps/x86_64/fpu/math_private.h | |
| parent | a843a204a3e8a0dd53584dad3668771abaec84ac (diff) | |
| download | glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.zip glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.tar.gz glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.tar.bz2 | |
Optimize libm
libm is now somewhat integrated with gcc's -ffinite-math-only option
and lots of the wrapper functions have been optimized.
Diffstat (limited to 'sysdeps/x86_64/fpu/math_private.h')
| -rw-r--r-- | sysdeps/x86_64/fpu/math_private.h | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/sysdeps/x86_64/fpu/math_private.h b/sysdeps/x86_64/fpu/math_private.h index 37357d3..523ec54 100644 --- a/sysdeps/x86_64/fpu/math_private.h +++ b/sysdeps/x86_64/fpu/math_private.h @@ -58,22 +58,35 @@ do { \ #endif #define __isnan(d) \ - ({ long int __di; EXTRACT_WORDS64 (__di, d); \ + ({ long int __di; EXTRACT_WORDS64 (__di, (double) d); \ (__di & 0x7fffffffffffffffl) > 0x7ff0000000000000l; }) #define __isnanf(d) \ - ({ int __di; GET_FLOAT_WORD (__di, d); \ + ({ int __di; GET_FLOAT_WORD (__di, (float) d); \ (__di & 0x7fffffff) > 0x7f800000; }) #define __isinf_ns(d) \ - ({ long int __di; EXTRACT_WORDS64 (__di, d); \ + ({ long int __di; EXTRACT_WORDS64 (__di, (double) d); \ (__di & 0x7fffffffffffffffl) == 0x7ff0000000000000l; }) #define __isinf_nsf(d) \ - ({ int __di; GET_FLOAT_WORD (__di, d); \ + ({ int __di; GET_FLOAT_WORD (__di, (float) d); \ (__di & 0x7fffffff) == 0x7f800000; }) #define __finite(d) \ - ({ long int __di; EXTRACT_WORDS64 (__di, d); \ + ({ long int __di; EXTRACT_WORDS64 (__di, (double) d); \ (__di & 0x7fffffffffffffffl) < 0x7ff0000000000000l; }) #define __finitef(d) \ - ({ int __di; GET_FLOAT_WORD (__di, d); \ + ({ int __di; GET_FLOAT_WORD (__di, (float) d); \ (__di & 0x7fffffff) < 0x7f800000; }) + +#define __ieee754_sqrt(d) \ + ({ double __res; \ + asm ("sqrtsd %1, %0" : "=x" (__res) : "xm" ((double) d)); \ + __res; }) +#define __ieee754_sqrtf(d) \ + ({ float __res; \ + asm ("sqrtss %1, %0" : "=x" (__res) : "xm" ((float) d)); \ + __res; }) +#define __ieee754_sqrtl(d) \ + ({ long double __res; \ + asm ("fsqrt" : "=t" (__res) : "0" ((long double) d)); \ + __res; }) |