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Conditionally define FP_FAST_FMA* for ARM.

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Joseph Myers 2010-10-19 20:09:24 +00:00
parent 16d6bc0bff
commit c6d5d85ccb
2 changed files with 20 additions and 1 deletions
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ChangeLog.arm
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@ -1,3 +1,8 @@
2010-10-19 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/bits/mathdef.h (FP_FAST_FMA, FP_FAST_FMAF,
FP_FAST_FMAL): Define if associated GCC macros are defined.
2010-10-11 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/eabi/feupdateenv.c (feupdateenv): Add

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sysdeps/arm/bits/mathdef.h
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@ -1,4 +1,4 @@
/* Copyright (C) 1999, 2000, 2004, 2006, 2007
/* Copyright (C) 1999, 2000, 2004, 2006, 2007, 2010
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@ -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