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[Bug tree-optimization/50561] [4.7 regression] ICE when compiling zlib with -O2 -floop-flatten -floop-strip-mine
- From: "dominiq at lps dot ens.fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 08 Feb 2012 17:02:16 +0000
- Subject: [Bug tree-optimization/50561] [4.7 regression] ICE when compiling zlib with -O2 -floop-flatten -floop-strip-mine
- Auto-submitted: auto-generated
- References: <bug-50561-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50561
--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-02-08 17:02:16 UTC ---
I saw a similar ICE for the polyhedron test air.f90. The patch in comment #7
fixes the ICE. However it produces a wrong code for -O2 and above, unless I use
-fwhole-program.