https://wiki.eofnet.lt/w//index.php?action=history&feed=atom&title=GCC_Optimizacija_64bitGCC Optimizacija 64bit - Versijų istorija2026-04-21T08:35:41ZŠio puslapio versijų istorija projekteMediaWiki 1.35.1https://wiki.eofnet.lt/w//index.php?title=GCC_Optimizacija_64bit&diff=3233&oldid=prev\dev\null: straipsnis sukurtas2013-11-03T12:04:26Z<p>straipsnis sukurtas</p>
<p><b>Naujas puslapis</b></p><div><br />
== GCC kompiliatoriaus optimizacijos 64bit platformai ==<br />
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Straipsnis yra kaip pavyzdys ir nėra išbaigtas.<br />
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echo 'int main(){return 0;}' > test.c && gcc -v -Q -march=native -O2 test.c -o test && rm test.c test<br />
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CHOST="x86_64-pc-linux-gnu"<br />
CFLAGS="-march=athlon64 -O2 -pipe"<br />
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CFLAGS="-O2 -pipe -fomit-frame-pointer -march=native -mtune=native" <br />
CXXFLAGS="${CFLAGS}"<br />
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To find out what -march=native actually picks on the local hardware<br />
gcc -march=native -E -v - </dev/null 2>&1 | grep cc1<br />
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MAKEOPTS="-j3"<br />
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If you're having gcc-4.3+ and "pni" in flags, you may want to use -march=k8-sse3 instead of -march=k8. You can take out the -msse3 by doing this.<br />
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[[Category:Linux]]<br />
[[Category:Gentoo]]</div>\dev\null