[Bug target/23322] [4.1/4.2/4.3 regression] performance regression

hubicka at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Wed Feb 6 11:31:00 GMT 2008



------- Comment #25 from hubicka at gcc dot gnu dot org  2008-02-06 11:30 -------
Hmm, sorry. IS_STACK_MODE obviously return false for SSE math, per Paolo's
commit.  Since it is not used except for the hacks to avoid constant hoisting,
I guess it is OK.  I will commit only the patch for pertial memory write and
give it a try making this heuristic less active.

The code is question is simple loop initializing array with a constant.  This
seems like something we ought to get right


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23322



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