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From: "steven at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/21485] BYTEmark numsort: performance regression 3.4.3 -> 4.0.0 with -O3 optimization
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------- Additional Comments From steven at gcc dot gnu dot org  2005-05-10 10:22 -------
On AMD64 with GCC 4.0.1 (CVS 4.0 branch) I go from ~580 at -O3 
to ~930 at -O3 -fno-tree-pre. 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21485