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Use "generic" optimization instead of 686 as default for runtime-cpudetection 

if available. It promises to deliver optimal performance on a collection of
comtemporary CPUs.
patch by Zuxy Meng, zuxy.meng gmail com


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22906 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
diego 2007-04-03 13:16:46 +00:00
parent de222fac40
commit 2868cadfff
1 changed files with 4 additions and 3 deletions
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7
configure vendored
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@ -1767,10 +1767,10 @@ EOF
_optimizing="$proc"
fi
else # if test "$_runtime_cpudetection" = no
# i686 is probably the most common CPU - optimize for it
_mcpu="$cpuopt=i686"
_mcpu="$cpuopt=generic"
# at least i486 required, for bswap instruction
_march="-march=i486"
cc_check $_mcpu || _mcpu="$cpuopt=i686"
cc_check $_mcpu || _mcpu=""
cc_check $_march $_mcpu || _march=""
fi
@ -1889,7 +1889,8 @@ EOF
else # if test "$_runtime_cpudetection" = no
# x86-64 is an undocumented option, an intersection of k8 and nocona.
_march="-march=x86-64"
_mcpu="$cpuopt=x86-64"
_mcpu="$cpuopt=generic"
cc_check $_mcpu || _mcpu="x86-64"
cc_check $_mcpu || _mcpu=""
cc_check $_march $_mcpu || _march=""
fi