[Bug tree-optimization/21923] [4.1 Regression] Ada compiler fails to build on gcc 4.1

[dnovillo at gcc dot gnu dot org]

-- 
Bug 21923 depends on bug 21959, which changed state.

Bug 21959 Summary: [4.1 Regression] vrp miscompiles Ada front-end, drops loop exit test in well-defined wrap-around circumstances
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21959

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21923