[Bug middle-end/45720] [4.6 regression] Revision 164367 miscompiled SPEC CPU 2K

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45720
Bug 45720 depends on bug 43432, which changed state.

Bug 43432 Summary: Missed vectorization: "complicated access pattern" for 
increasing and decreasing data indexing
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43432

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