diff options
Diffstat (limited to 'libc/sysdeps/x86_64/fpu/dla.h')
| -rw-r--r-- | libc/sysdeps/x86_64/fpu/dla.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/libc/sysdeps/x86_64/fpu/dla.h b/libc/sysdeps/x86_64/fpu/dla.h new file mode 100644 index 000000000..fa2d52bbf --- /dev/null +++ b/libc/sysdeps/x86_64/fpu/dla.h @@ -0,0 +1,17 @@ +#include <features.h> + +#ifdef __FMA4__ +# if __GNUC_PREREQ (4, 6) +# define DLA_FMS(x,y,z) \ + __builtin_fma (x, y, -(z)) +# else +# define DLA_FMS(x,y,z) \ + ({ double __z; \ + asm ("vfmsubsd %3, %2, %1, %0" \ + : "=x" (__z) \ + : "x" ((double) (x)), "xm" ((double) (y)) , "x" ((double) (z))); \ + __z; }) +# endif +#endif + +#include "sysdeps/ieee754/dbl-64/dla.h" |