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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 /sysdeps | |
| parent | 9574c7b68ddc9f2b940d412dca87592414274b48 (diff) | |
| download | glibc-9d0ffa60ad88799b33ab6437ba0f29b39c019462.tar glibc-9d0ffa60ad88799b33ab6437ba0f29b39c019462.tar.gz glibc-9d0ffa60ad88799b33ab6437ba0f29b39c019462.tar.bz2 glibc-9d0ffa60ad88799b33ab6437ba0f29b39c019462.zip | |
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 'sysdeps')
| -rw-r--r-- | sysdeps/x86_64/fpu/multiarch/Makefile | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/multiarch/s_sinf-fma.c | 2 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/multiarch/s_sinf-sse2.c | 2 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/multiarch/s_sinf.c | 28 |
4 files changed, 36 insertions, 1 deletions
diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile index c78624b47d..cab84bff3a 100644 --- a/sysdeps/x86_64/fpu/multiarch/Makefile +++ b/sysdeps/x86_64/fpu/multiarch/Makefile @@ -37,14 +37,17 @@ CFLAGS-slowpow-fma.c = -mfma -mavx2 CFLAGS-s_sin-fma.c = -mfma -mavx2 CFLAGS-s_tan-fma.c = -mfma -mavx2 +libm-sysdep_routines += s_sinf-sse2 + libm-sysdep_routines += e_exp2f-fma e_expf-fma e_log2f-fma e_logf-fma \ - e_powf-fma + e_powf-fma s_sinf-fma CFLAGS-e_exp2f-fma.c = -mfma -mavx2 CFLAGS-e_expf-fma.c = -mfma -mavx2 CFLAGS-e_log2f-fma.c = -mfma -mavx2 CFLAGS-e_logf-fma.c = -mfma -mavx2 CFLAGS-e_powf-fma.c = -mfma -mavx2 +CFLAGS-s_sinf-fma.c = -mfma -mavx2 libm-sysdep_routines += e_exp-fma4 e_log-fma4 e_pow-fma4 s_atan-fma4 \ e_asin-fma4 e_atan2-fma4 s_sin-fma4 s_tan-fma4 \ diff --git a/sysdeps/x86_64/fpu/multiarch/s_sinf-fma.c b/sysdeps/x86_64/fpu/multiarch/s_sinf-fma.c new file mode 100644 index 0000000000..34440ebf4a --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_sinf-fma.c @@ -0,0 +1,2 @@ +#define SINF __sinf_fma +#include <sysdeps/ieee754/flt-32/s_sinf.c> diff --git a/sysdeps/x86_64/fpu/multiarch/s_sinf-sse2.c b/sysdeps/x86_64/fpu/multiarch/s_sinf-sse2.c new file mode 100644 index 0000000000..74e32c98db --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_sinf-sse2.c @@ -0,0 +1,2 @@ +#define SINF __sinf_sse2 +#include <sysdeps/ieee754/flt-32/s_sinf.c> diff --git a/sysdeps/x86_64/fpu/multiarch/s_sinf.c b/sysdeps/x86_64/fpu/multiarch/s_sinf.c new file mode 100644 index 0000000000..831bc6f131 --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_sinf.c @@ -0,0 +1,28 @@ +/* Multiple versions of sinf. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <libm-alias-float.h> + +extern float __redirect_sinf (float); + +#define SYMBOL_NAME sinf +#include "ifunc-fma.h" + +libc_ifunc_redirected (__redirect_sinf, __sinf, IFUNC_SELECTOR ()); + +libm_alias_float (__sin, sin) |