glibc/sysdeps/x86_64/fpu/dla.h

#include <features.h>

#ifdef __FMA4__
# define DLA_FMS(x,y,z) \
  __builtin_fma (x, y, -(z))
#endif

#include "sysdeps/ieee754/dbl-64/dla.h"
Better DLA_FMS It's better to use __builtin_fma if it works. Use it for gcc 4.6 and higher. Move the x86-64 dla.h to the correct place. 2011-10-25 02:11:21 +00:00			`#include <features.h>`

Use inline asm for DLA_FMS because of broken old compilers 2011-10-25 01:17:10 +00:00			`#ifdef __FMA4__`
Remove x86_64 __GNUC_PREREQ (4, 6) conditional. This patch removes a conditional on __GNUC_PREREQ (4, 6) in x86_64 code. Tested for x86_64 that installed shared libraries are unchanged by this patch. Committed (I think this file reasonably comes under math maintainership). * sysdeps/x86_64/fpu/dla.h [__FMA4__ && __GNUC_PREREQ (4, 6)] (DLA_FMS): Make definition conditional only on [__FMA4__]. [__FMA4__ && !__GNUC_PREREQ (4, 6)] (DLA_FMS): Remove conditional definition. 2014-11-14 18:53:07 +00:00			`# define DLA_FMS(x,y,z) \`
Better DLA_FMS It's better to use __builtin_fma if it works. Use it for gcc 4.6 and higher. Move the x86-64 dla.h to the correct place. 2011-10-25 02:11:21 +00:00			`__builtin_fma (x, y, -(z))`
Clean up last dla.h change 2011-10-23 16:50:28 +00:00			`#endif`

			`#include "sysdeps/ieee754/dbl-64/dla.h"`