[Bug target/41989] Code optimized for AMD Geode is slower than generic

ubizjak at gmail dot com gcc-bugzilla@gcc.gnu.org
Mon Nov 9 10:28:00 GMT 2009



------- Comment #11 from ubizjak at gmail dot com  2009-11-09 10:28 -------
OK, according to your benchmarks and documentation qoute, it looks we have to
split "geode-lx" out of generic "geode" option.

So, can you confirm, that the difference between generic geode and geode-lx is
presence of CMOV bit? According to your documentation quote, it should use i686
pipeline with 3dNow! features.

There is also geode NX, IIRC it represents itself as Athlon, but someone should
confirm this.

See also PR37179, geode LX does not implrement ffreep, so it is not Athlon.


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
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   Last reconfirmed|0000-00-00 00:00:00         |2009-11-09 10:28:03
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41989



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