[Bug tree-optimization/46315] [4.5 Regression] gcc-4.5.1 -O2 -fno-strict-overflow causes bad code generation

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46315

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-05 
16:47:12 UTC ---
ipa-cp triggers this but is not neccessarily at fault.  Workaround:
-fno-ipa-cp.