[Bug tree-optimization/15678] [4.0 Regression] Compilation time increased by 10-20%

[pinskia at gcc dot gnu dot org]

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Bug 15678 depends on bug 17707, which changed state.

Bug 17707 Summary: [4.0 Regression] O(N^2) in cgraph_reset_static_var_maps
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17707

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15678