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[Bug target/23322] [4.1/4.2/4.3 regression] performance regression
- From: "hubicka at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Feb 2008 11:30:33 -0000
- Subject: [Bug target/23322] [4.1/4.2/4.3 regression] performance regression
- References: <bug-23322-10914@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- 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
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23322