[Bug rtl-optimization/8613] [3.2/3.3/3.4 regression] -O2 optimization generates wrong code

[pinskia at gcc dot gnu dot org]

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           What    |Removed                     |Added
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   Target Milestone|---                         |3.1.x/3.2.x


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8613