diff options
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_expf.c | 5 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/math_config.h | 20 |
2 files changed, 16 insertions, 9 deletions
diff --git a/sysdeps/ieee754/flt-32/e_expf.c b/sysdeps/ieee754/flt-32/e_expf.c index f2238bfd74..384a586172 100644 --- a/sysdeps/ieee754/flt-32/e_expf.c +++ b/sysdeps/ieee754/flt-32/e_expf.c @@ -85,10 +85,7 @@ __expf (float x) #if TOINT_INTRINSICS kd = roundtoint (z); ki = converttoint (z); -#elif TOINT_RINT - kd = rint (z); - ki = (long) kd; -#elif TOINT_SHIFT +#else # define SHIFT __exp2f_data.shift kd = math_narrow_eval ((double) (z + SHIFT)); /* Needs to be double. */ ki = asuint64 (kd); diff --git a/sysdeps/ieee754/flt-32/math_config.h b/sysdeps/ieee754/flt-32/math_config.h index 9c4ef30173..8ca7532686 100644 --- a/sysdeps/ieee754/flt-32/math_config.h +++ b/sysdeps/ieee754/flt-32/math_config.h @@ -38,13 +38,23 @@ #endif #ifndef TOINT_INTRINSICS +/* When set, the roundtoint and converttoint functions are provided with + the semantics documented below. */ # define TOINT_INTRINSICS 0 #endif -#ifndef TOINT_RINT -# define TOINT_RINT 0 -#endif -#ifndef TOINT_SHIFT -# define TOINT_SHIFT 1 + +#if TOINT_INTRINSICS +/* Round x to nearest int in all rounding modes, ties have to be rounded + consistently with converttoint so the results match. If the result + would be outside of [-2^31, 2^31-1] then the semantics is unspecified. */ +static inline double_t +roundtoint (double_t x); + +/* Convert x to nearest int in all rounding modes, ties have to be rounded + consistently with roundtoint. If the result is not representible in an + int32_t then the semantics is unspecified. */ +static inline int32_t +converttoint (double_t x); #endif static inline uint32_t |