[Bug tree-optimization/14847] [tree-ssa] combine "if (a & 1) goto there" and "if (a & 4) goto there"

[kazu at cs dot umass dot edu]

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Bug 14847 depends on bug 14846, which changed state.

Bug 14846 Summary: [tree-ssa] don't use a shift in A & CST_POWER_OF_2 == 0 until very late in tree-ssa optimizations
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14846

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14847