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| author |   Michael Meissner <meissner@linux.vnet.ibm.com> | 2010-10-19 12:49:05 -0400 |
|---|---|---|
| committer |   Ulrich Drepper <drepper@gmail.com> | 2010-10-19 12:49:05 -0400 |
| commit | d20501241ea423e477b357d93147530987e0d89e (patch) | |
| tree | d3f6778111be8ffde5964e2c2903a8b6fe697cdf /bits/mathdef.h | |
| parent | Merge branch 'master' of ssh://sourceware.org/git/glibc (diff) | |
| download | glibc-d20501241ea423e477b357d93147530987e0d89e.tar.gz glibc-d20501241ea423e477b357d93147530987e0d89e.tar.bz2 glibc-d20501241ea423e477b357d93147530987e0d89e.zip | |
Add C99 FP_FAST_FMA{,F,L} macros to math.h
Diffstat (limited to 'bits/mathdef.h')
| -rw-r--r-- | bits/mathdef.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/bits/mathdef.h b/bits/mathdef.h index 00c67241a0..973438097e 100644 --- a/bits/mathdef.h +++ b/bits/mathdef.h @@ -34,6 +34,20 @@ typedef double double_t; /* `double' expressions are evaluated as # define FP_ILOGB0 (-2147483647) # define FP_ILOGBNAN 2147483647 +/* The GCC 4.6 compiler will define __FP_FAST_FMA{,F,L} if the fma{,f,l} + builtins are supported. */ +#if __FP_FAST_FMA +# define FP_FAST_FMA 1 +#endif + +#if __FP_FAST_FMAF +# define FP_FAST_FMAF 1 +#endif + +#if __FP_FAST_FMAL +# define FP_FAST_FMAL 1 +#endif + #endif /* ISO C99 */ #ifndef __NO_LONG_DOUBLE_MATH |