[Bug tree-optimization/46590] long compile time with -O2 and many loops

[law at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46590
Bug 46590 depends on bug 61515, which changed state.

Bug 61515 Summary: [4.9 Regression] Extremely long compile time for generated 
code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61515

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