diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_floor.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_floor.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_floor.c b/sysdeps/ieee754/dbl-64/s_floor.c index ce0c42bdb6..78325214f4 100644 --- a/sysdeps/ieee754/dbl-64/s_floor.c +++ b/sysdeps/ieee754/dbl-64/s_floor.c @@ -35,6 +35,7 @@ #include <math_private.h> #include <stdint.h> #include <libm-alias-double.h> +#include <math-use-builtins.h> /* * floor(x) @@ -47,6 +48,10 @@ double __floor (double x) { +#if USE_FLOOR_BUILTIN + return __builtin_floor (x); +#else + /* Use generic implementation. */ int64_t i0; EXTRACT_WORDS64 (i0, x); int32_t j0 = ((i0 >> 52) & 0x7ff) - 0x3ff; @@ -74,6 +79,7 @@ __floor (double x) else if (j0 == 0x400) return x + x; /* inf or NaN */ return x; +#endif /* ! USE_FLOOR_BUILTIN */ } #ifndef __floor libm_alias_double (__floor, floor) |