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[Bug rtl-optimization/50078] [4.6/4.7 Regression] combine wrong code: volatile accesses optimized out
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 15 Aug 2011 09:13:40 +0000
- Subject: [Bug rtl-optimization/50078] [4.6/4.7 Regression] combine wrong code: volatile accesses optimized out
- Auto-submitted: auto-generated
- References: <bug-50078-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50078
--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-15 09:13:40 UTC ---
noop_move_p returns true for this - ignoding the side-effects.