[Bug rtl-optimization/46315] [4.5 regression] -O2 -fno-strict-overflow causes wrong code generation

[ebotcazou at gcc dot gnu.org]

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

--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-11-15 
23:44:08 UTC ---
Created attachment 22412
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22412
fix for the 4.5 branch

Not fully testes yet.