[Bug rtl-optimization/20945] about 2x perfomance regression in comparision with 3.4.2

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2005-06-25 11:38 -------
And FWIW, yes there are a number of known issues with optimizing for mgrid 
on ia32.  Try e.g. -fno-tree-pre, this used to be a major win for mgrid. 
What can you expect, when the hot loop has 11 integer register candidates 
that GCC all puts in GIMPLE registers, but your silly target only has 6 
registers.  Long live AMD64! 
 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20945