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| author | Ulrich Drepper <drepper@gmail.com> | 2010-10-19 12:56:42 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2010-10-19 12:56:42 -0400 |
| commit | 18edac4857531b4b034eef37a07e3b03117de2bf (patch) | |
| tree | 76ab66c435d997cdcb07a559e3c7e313945436bf /sysdeps/x86_64 | |
| parent | d20501241ea423e477b357d93147530987e0d89e (diff) | |
| download | glibc-18edac4857531b4b034eef37a07e3b03117de2bf.tar.gz glibc-18edac4857531b4b034eef37a07e3b03117de2bf.tar.xz glibc-18edac4857531b4b034eef37a07e3b03117de2bf.zip | |
Provide FP_FAST_FMA{,F,L} definitions for x86/x86-64.
Diffstat (limited to 'sysdeps/x86_64')
| -rw-r--r-- | sysdeps/x86_64/bits/mathdef.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/sysdeps/x86_64/bits/mathdef.h b/sysdeps/x86_64/bits/mathdef.h index 7b16189590..91463921b1 100644 --- a/sysdeps/x86_64/bits/mathdef.h +++ b/sysdeps/x86_64/bits/mathdef.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2001, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2001, 2004, 2010 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -45,4 +45,18 @@ typedef long double double_t; /* `double' expressions are evaluated as # define FP_ILOGB0 (-2147483647 - 1) # define FP_ILOGBNAN (-2147483647 - 1) +/* 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 */ |