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[Bug rtl-optimization/36712] Inefficient loop unrolling
- From: "bmei at broadcom dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 May 2009 14:17:38 -0000
- Subject: [Bug rtl-optimization/36712] Inefficient loop unrolling
- References: <bug-36712-15361@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from bmei at broadcom dot com 2009-05-20 14:17 -------
I implemented a tree-level loop-unrolling pass in our private porting, which
takes advantage of later tree ivopt pass. It produces much better code than
rtl-level loop unrolling in such scenarios. Not sure whether should submit for
4.5.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36712