diff options
Diffstat (limited to 'sysdeps/ieee754/flt-32/math_config.h')
| -rw-r--r-- | sysdeps/ieee754/flt-32/math_config.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sysdeps/ieee754/flt-32/math_config.h b/sysdeps/ieee754/flt-32/math_config.h index f869fbc66c..e5a830b442 100644 --- a/sysdeps/ieee754/flt-32/math_config.h +++ b/sysdeps/ieee754/flt-32/math_config.h @@ -21,6 +21,7 @@ #include <math.h> #include <math_private.h> +#include <nan-high-order-bit.h> #include <stdint.h> #ifndef WANT_ROUNDING @@ -90,6 +91,15 @@ asdouble (uint64_t i) return u.f; } +static inline int +issignalingf_inline (float x) +{ + uint32_t ix = asuint (x); + if (HIGH_ORDER_BIT_IS_SET_FOR_SNAN) + return (ix & 0x7fc00000) == 0x7fc00000; + return 2 * (ix ^ 0x00400000) > 2u * 0x7fc00000; +} + #define NOINLINE __attribute__ ((noinline)) attribute_hidden float __math_oflowf (unsigned long); @@ -134,4 +144,21 @@ extern const struct log2f_data double poly[LOG2F_POLY_ORDER]; } __log2f_data attribute_hidden; +#define POWF_LOG2_TABLE_BITS 4 +#define POWF_LOG2_POLY_ORDER 5 +#if TOINT_INTRINSICS +# define POWF_SCALE_BITS EXP2F_TABLE_BITS +#else +# define POWF_SCALE_BITS 0 +#endif +#define POWF_SCALE ((double) (1 << POWF_SCALE_BITS)) +extern const struct powf_log2_data +{ + struct + { + double invc, logc; + } tab[1 << POWF_LOG2_TABLE_BITS]; + double poly[POWF_LOG2_POLY_ORDER]; +} __powf_log2_data attribute_hidden; + #endif |