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authorOndrej Bilka <neleai@seznam.cz>2013-05-20 08:26:00 +0200
committerH.J. Lu <hjl.tools@gmail.com>2016-05-05 06:29:28 -0700
commit143ce75a4203a78d79549b00e570a5bb429c44cf (patch)
tree3aa10cda2b9d0d9f18d1e0df81162cbd98f11910 /sysdeps/ieee754/ldbl-opt/s_ccoshl.c
parent16e49ca0c878c5cef2638f828c85bbedfb95c83b (diff)
downloadglibc-hjl/2.17/memset.tar.gz
glibc-hjl/2.17/memset.tar.xz
glibc-hjl/2.17/memset.zip
Faster memset on x64 hjl/2.17/memset
This implementation speed up memset in several ways. First is
avoiding expensive computed jump. Second is using fact that arguments
of memset are most of time aligned to 8 bytes.

Benchmark results on:

kam.mff.cuni.cz/~ondra/benchmark_string/memset_profile_result27_04_13.tar.bz2

(cherry picked from commit b2b671b677d92429a3d41bf451668f476aa267ed)
Diffstat (limited to 'sysdeps/ieee754/ldbl-opt/s_ccoshl.c')
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