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[Bug tree-optimization/38748] [4.4 Regression] Missed FRE because of VIEW_CONVERT_EXPR
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Jan 2009 23:16:36 -0000
- Subject: [Bug tree-optimization/38748] [4.4 Regression] Missed FRE because of VIEW_CONVERT_EXPR
- References: <bug-38748-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from pinskia at gcc dot gnu dot org 2009-01-15 23:16 -------
The CSE of the load is only valid at -O2 and above (strict aliasing turned on).
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38748