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authorH.J. Lu <hjl.tools@gmail.com>2017-10-22 07:55:49 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-10-22 07:57:50 -0700
commit5d15c9697577d2c342b5ade820bfd7b84a736b23 (patch)
treed16d35b14e05b635b9dc8d147fbd6c147852d446 /sysdeps/x86_64/fpu/multiarch/Makefile
parentb2f6137ea570933fb4be286574cc58b794eb5b5f (diff)
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x86-64: Add exp2f with FMA
For workload-spec2017.wrf, on Skylake, it improves performance by: Before After Improvement reciprocal-throughput 13.0291 11.2225 16% latency 44.5154 37.5766 18% * sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines): Add e_exp2f-fma. (CFLAGS-e_exp2f-fma.c): New. * sysdeps/x86_64/fpu/multiarch/e_exp2f-fma.c: New file. * sysdeps/x86_64/fpu/multiarch/e_exp2f.c: Likewise.
Diffstat (limited to 'sysdeps/x86_64/fpu/multiarch/Makefile')
-rw-r--r--sysdeps/x86_64/fpu/multiarch/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
index 92e91d7..71a3b33 100644
--- a/sysdeps/x86_64/fpu/multiarch/Makefile
+++ b/sysdeps/x86_64/fpu/multiarch/Makefile
@@ -37,8 +37,9 @@ CFLAGS-slowpow-fma.c = -mfma -mavx2
CFLAGS-s_sin-fma.c = -mfma -mavx2
CFLAGS-s_tan-fma.c = -mfma -mavx2
-libm-sysdep_routines += e_expf-fma
+libm-sysdep_routines += e_exp2f-fma e_expf-fma
+CFLAGS-e_exp2f-fma.c = -mfma -mavx2
CFLAGS-e_expf-fma.c = -mfma -mavx2
libm-sysdep_routines += e_exp-fma4 e_log-fma4 e_pow-fma4 s_atan-fma4 \