[Bug tree-optimization/21332] [4.1 Regression] -ftree-vrp makes a loop doesn't execute a body

[pinskia at gcc dot gnu dot org]

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Bug 21332 depends on bug 18373, which changed state.

Bug 18373 Summary: [meta-bug] VRP Value Range Propagation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18373

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21332