diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_rint.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_rint.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_rint.c b/sysdeps/ieee754/dbl-64/s_rint.c index 66c9196473..8604733ef9 100644 --- a/sysdeps/ieee754/dbl-64/s_rint.c +++ b/sysdeps/ieee754/dbl-64/s_rint.c @@ -23,16 +23,20 @@ #include <math.h> #include <math_private.h> #include <libm-alias-double.h> - -static const double -TWO52[2] = { - 4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */ - -4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */ -}; +#include <math-use-builtins.h> double __rint (double x) { +#if USE_RINT_BUILTIN + return __builtin_rint (x); +#else + /* Use generic implementation. */ + static const double + TWO52[2] = { + 4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */ + -4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */ + }; int64_t i0, sx; int32_t j0; EXTRACT_WORDS64 (i0, x); @@ -59,6 +63,7 @@ __rint (double x) } double w = TWO52[sx] + x; return w - TWO52[sx]; +#endif /* ! USE_RINT_BUILTIN */ } #ifndef __rint libm_alias_double (__rint, rint) |