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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-12-07 10:11:02 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-12-07 10:11:16 -0800 |
| commit | 9d0ffa60ad88799b33ab6437ba0f29b39c019462 (patch) | |
| tree | 83ff13a7398d34ea00ab43c2b71a3826e47665e3 /NEWS | |
| parent | 9574c7b68ddc9f2b940d412dca87592414274b48 (diff) | |
| download | glibc-9d0ffa60ad88799b33ab6437ba0f29b39c019462.zip glibc-9d0ffa60ad88799b33ab6437ba0f29b39c019462.tar.gz glibc-9d0ffa60ad88799b33ab6437ba0f29b39c019462.tar.bz2 | |
x86-64: Add sinf with FMA
On Skylake, bench-sinf reports performance improvement:
Before After Improvement
max 153.996 100.094 54%
min 8.546 6.852 25%
mean 18.1223 11.802 54%
* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
Add s_sinf-sse2 and s_sinf-fma.
(CFLAGS-s_sinf-fma.c): New.
* sysdeps/x86_64/fpu/multiarch/s_sinf-fma.c: New file.
* sysdeps/x86_64/fpu/multiarch/s_sinf-sse2.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_sinf.c: Likewise.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -9,8 +9,8 @@ Version 2.27 Major new features: -* Optimized x86-64 asin, atan2, exp, expf, log, pow, atan, sin and tan - with FMA, contributed by Arjan van de Ven and H.J. Lu from Intel. +* Optimized x86-64 asin, atan2, exp, expf, log, pow, atan, sin, sinf and + tan with FMA, contributed by Arjan van de Ven and H.J. Lu from Intel. * Optimized x86-64 trunc and truncf for processors with SSE4.1. |