diff options
| -rw-r--r-- | lib/msun/src/math.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/msun/src/math.h b/lib/msun/src/math.h index 2da3de700a30..754599e2ff04 100644 --- a/lib/msun/src/math.h +++ b/lib/msun/src/math.h @@ -34,15 +34,35 @@ extern const union __nan_un { float __uf; } __nan; +#if (defined(__GNUC__) && __GNUC__ >= 3) || defined(__INTEL_COMPILER) +#define __MATH_BUILTIN_CONSTANTS +#endif + +#if (defined(__GNUC__) && __GNUC__ >= 3) +#define __MATH_BUILTIN_RELOPS +#endif + +#ifdef __MATH_BUILTIN_CONSTANTS +#define HUGE_VAL __builtin_huge_val() +#else #define HUGE_VAL (__infinity.__ud) +#endif #if __ISO_C_VISIBLE >= 1999 #define FP_ILOGB0 (-__INT_MAX) #define FP_ILOGBNAN __INT_MAX + +#ifdef __MATH_BUILTIN_CONSTANTS +#define HUGE_VALF __builtin_huge_valf() +#define HUGE_VALL __builtin_huge_vall() +#define INFINITY __builtin_inf() +#define NAN __builtin_nan("") +#else #define HUGE_VALF (float)HUGE_VAL #define HUGE_VALL (long double)HUGE_VAL #define INFINITY HUGE_VALF #define NAN (__nan.__uf) +#endif /* __MATH_BUILTIN_CONSTANTS */ #define MATH_ERRNO 1 #define MATH_ERREXCEPT 2 @@ -64,6 +84,14 @@ extern const union __nan_un { #define isnan(x) (fpclassify(x) == FP_NAN) #define isnormal(x) (fpclassify(x) == FP_NORMAL) +#ifdef __MATH_BUILTIN_RELOPS +#define isgreater(x, y) __builtin_isgreater((x), (y)) +#define isgreaterequal(x, y) __builtin_isgreaterequal((x), (y)) +#define isless(x, y) __builtin_isless((x), (y)) +#define islessequal(x, y) __builtin_islessequal((x), (y)) +#define islessgreater(x, y) __builtin_islessgreater((x), (y)) +#define isunordered(x, y) __builtin_isunordered((x), (y)) +#else #define isgreater(x, y) (!isunordered((x), (y)) && (x) > (y)) #define isgreaterequal(x, y) (!isunordered((x), (y)) && (x) >= (y)) #define isless(x, y) (!isunordered((x), (y)) && (x) < (y)) @@ -71,6 +99,7 @@ extern const union __nan_un { #define islessgreater(x, y) (!isunordered((x), (y)) && \ ((x) > (y) || (y) > (x))) #define isunordered(x, y) (isnan(x) || isnan(y)) +#endif /* __MATH_BUILTIN_RELOPS */ #define signbit(x) __signbit(x) |