[Bug tree-optimization/23286] Missed code hoisting optimization

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23286
Bug 23286 depends on bug 5738, which changed state.

Bug 5738 Summary: Missed code hoisting opportunity
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=5738

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED