[Bug c++/53364] [4.7/4.8 Regression] Wrong code generation

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53364

--- Comment #4 from Marc Glisse <glisse at gcc dot gnu.org> 2012-05-16 07:11:35 
UTC ---
Looking at -fdump-tree-all, 081t.phicprop1 is still the same for -O1 and -O2,
but O82t.dse1 is missing the memory writes for -O2.