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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-11-08 17:38:40 -0800 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-11-08 19:22:33 -0800 |
| commit | 64b8b6516b3cba19dba4c8f4f9b97daa0556fd98 (patch) | |
| tree | 93e9e1c8bd54c3a10eb9c00db604bd74696adb10 /sysdeps/x86_64/dl-tlsdesc.h | |
| parent | 642933158e7cf072d873231b1a9bb03291f2b989 (diff) | |
| download | glibc-64b8b6516b3cba19dba4c8f4f9b97daa0556fd98.tar.gz glibc-64b8b6516b3cba19dba4c8f4f9b97daa0556fd98.tar.xz glibc-64b8b6516b3cba19dba4c8f4f9b97daa0556fd98.zip | |
x86: Add evex optimized functions for the wchar_t strcpy family
Implemented:
wcscat-evex (+ 905 bytes)
wcscpy-evex (+ 674 bytes)
wcpcpy-evex (+ 709 bytes)
wcsncpy-evex (+1358 bytes)
wcpncpy-evex (+1467 bytes)
wcsncat-evex (+1213 bytes)
Performance Changes:
Times are from N = 10 runs of the benchmark suite and are reported
as geometric mean of all ratios of New Implementation / Best Old
Implementation. Best Old Implementation was determined with the
highest ISA implementation.
wcscat-evex -> 0.991
wcscpy-evex -> 0.587
wcpcpy-evex -> 0.695
wcsncpy-evex -> 0.719
wcpncpy-evex -> 0.694
wcsncat-evex -> 0.979
Code Size Changes:
This change increase the size of libc.so by ~6.3kb bytes. For
reference the patch optimizing the normal strcpy family functions
decreases libc.so by ~5.7kb.
Full check passes on x86-64 and build succeeds for all ISA levels w/
and w/o multiarch.
Diffstat (limited to 'sysdeps/x86_64/dl-tlsdesc.h')
0 files changed, 0 insertions, 0 deletions