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x86: drop -funroll-loops for csum_partial_64.c
authorAndi Kleen <andi@firstfloor.org>
Thu, 4 Sep 2008 11:46:11 +0000 (13:46 +0200)
committerH. Peter Anvin <hpa@zytor.com>
Thu, 4 Sep 2008 15:42:06 +0000 (08:42 -0700)
commitfb481dd56adf3c5b0993b8f052cc9ba966e3959d
tree22312cb77dbc8bf71bc54dff40efad7cf8e2d822tree | snapshot
parenta5444d15b611cf2ffe2bc52aaf11f2ac51882f89commit | diff
x86: drop -funroll-loops for csum_partial_64.c

Impact: performance optimization

I did some rebenchmarking with modern compilers and dropping
-funroll-loops makes the function consistently go faster by a few
percent.  So drop that flag.

Thanks to Richard Guenther for a hint.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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