[Bug tree-optimization/20100] [4.0 Regression] LIM is pulling out a pure function even though there is something which can modify global memory

[steven at gcc dot gnu dot org]

-- 
Bug 20100 depends on bug 20115, which changed state.

Bug 20115 Summary: [4.0 Regression] Pure functions are mishandled
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20115

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20100