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[Bug tree-optimization/41879] [4.5 Regression] 172.mgrid regression, vectorizer prevents predictive commoning
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Nov 2009 15:17:33 -0000
- Subject: [Bug tree-optimization/41879] [4.5 Regression] 172.mgrid regression, vectorizer prevents predictive commoning
- References: <bug-41879-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from rguenth at gcc dot gnu dot org 2009-11-12 15:17 -------
The idea is to call predcom analysis and hook it into the vectorizer as another
vectorization form for the cost model.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41879