diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2025-10-31 13:08:54 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2025-11-04 04:14:01 -0300 |
| commit | f27a146409e633c73c8212ed8e38114102d9888c (patch) | |
| tree | ce4a20371e6a1ed3375285ab2c83420e42f3b7f4 /sysdeps/ieee754 | |
| parent | 0e1a1178ee22a25ff4568f51a2fec85451b17b04 (diff) | |
math: Remove the SVID error handling from sinhf
It improves latency for about 3-10% and throughput for about 5-15%.
Tested on x86_64-linux-gnu and i686-linux-gnu.
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_sinhf.c | 22 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/w_sinhf.c | 1 |
2 files changed, 14 insertions, 9 deletions
diff --git a/sysdeps/ieee754/flt-32/e_sinhf.c b/sysdeps/ieee754/flt-32/e_sinhf.c index 5e812c35af..687f75332e 100644 --- a/sysdeps/ieee754/flt-32/e_sinhf.c +++ b/sysdeps/ieee754/flt-32/e_sinhf.c @@ -24,15 +24,18 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +#include <errno.h> #include <math.h> #include <stdint.h> #include <libm-alias-finite.h> +#include <libm-alias-float.h> +#include <math-svid-compat.h> #include <math-narrow-eval.h> #include "math_config.h" #include "e_sincoshf_data.h" float -__ieee754_sinhf (float x) +__sinhf (float x) { static const struct { @@ -44,15 +47,9 @@ __ieee754_sinhf (float x) uint32_t ux = asuint (x) << 1; if (__glibc_unlikely (ux > 0x8565a9f8u)) { /* |x| >~ 89.4 */ - float sgn = copysignf (2.0f, x); if (ux >= 0xff000000u) - { - if (ux << 8) - return x + x; /* nan */ - return copysignf (INFINITY, x); /* +-inf */ - } - float r = math_narrow_eval (sgn * 0x1.fffffep127f); - return r; + return x + x;; + return __math_oflowf (x < 0); } if (__glibc_unlikely (ux < 0x7c000000u)) { /* |x| < 0.125 */ @@ -105,4 +102,11 @@ __ieee754_sinhf (float x) } return ub; } +strong_alias (__sinhf, __ieee754_sinhf) +#if LIBM_SVID_COMPAT +versioned_symbol (libm, __sinhf, sinhf, GLIBC_2_43); +libm_alias_float_other (__sinh, sinh) +#else +libm_alias_float (__sinh, sinh) +#endif libm_alias_finite (__ieee754_sinhf, __sinhf) diff --git a/sysdeps/ieee754/flt-32/w_sinhf.c b/sysdeps/ieee754/flt-32/w_sinhf.c new file mode 100644 index 0000000000..1cc8931700 --- /dev/null +++ b/sysdeps/ieee754/flt-32/w_sinhf.c @@ -0,0 +1 @@ +/* Not needed. */ |