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author | H.J. Lu <hjl.tools@gmail.com> | 2017-10-22 07:49:36 -0700 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2017-10-22 07:49:55 -0700 |
commit | e1f59bebd885c442c14df3554da9fe08792ce7ce (patch) | |
tree | 2a8d4b88a4373cc77e4085d050d806b7bd216549 /sysdeps/i386/fpu/e_expf.S | |
parent | a159b53fa059947cc2548e3b0d5bdcf7b9630ba8 (diff) | |
download | glibc-e1f59bebd885c442c14df3554da9fe08792ce7ce.tar.gz glibc-e1f59bebd885c442c14df3554da9fe08792ce7ce.tar.xz glibc-e1f59bebd885c442c14df3554da9fe08792ce7ce.zip |
x86-64: Replace assembly versions of e_expf with generic e_expf.c
This patch replaces x86-64 assembly versions of e_expf with generic e_expf.c. For workload-spec2017.wrf, on Nehalem, it improves performance by: Before After Improvement reciprocal-throughput 36.039 20.7749 73% latency 58.8096 40.8715 43% On Skylake, it improves Before After Improvement reciprocal-throughput 18.4436 11.1693 65% latency 47.5162 37.5411 26% * sysdeps/x86_64/fpu/e_expf.S: Removed. * sysdeps/x86_64/fpu/multiarch/e_expf-fma.S: Likewise. * sysdeps/x86_64/fpu/w_expf.c: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Updated for generic e_expf.c. * sysdeps/x86_64/fpu/multiarch/Makefile (CFLAGS-e_expf-fma.c): New. * sysdeps/x86_64/fpu/multiarch/e_expf-fma.c: New file. * sysdeps/x86_64/fpu/multiarch/e_expf.c (__redirect_ieee754_expf): Renamed to ... (__redirect_expf): This. (SYMBOL_NAME): Changed to expf. (__ieee754_expf): Renamed to ... (__expf): This. (__GI___expf): This. (__ieee754_expf): Add strong_alias. (__expf_finite): Likewise. (__expf): New. Include <sysdeps/ieee754/flt-32/e_expf.c>.
Diffstat (limited to 'sysdeps/i386/fpu/e_expf.S')
0 files changed, 0 insertions, 0 deletions