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[Bug tree-optimization/32824] Missed reduction vectorizer after store to global is LIM'd
- From: "dorit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Jul 2007 08:59:33 -0000
- Subject: [Bug tree-optimization/32824] Missed reduction vectorizer after store to global is LIM'd
- References: <bug-32824-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from dorit at gcc dot gnu dot org 2007-07-24 08:59 -------
Just for the record - as we discussed last week, there are two ways to solve
this problem - either have LIM leave behind it cleaner code (smthing like
copy-prop + dce to eliminate the extra copy stmts), or improve the reduction
detection code in the vectorizer, which is something we want to do anyway.
Actually this looks like a duplicate of PR25621.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32824