[Bug tree-optimization/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks

[pinskia at gcc dot gnu dot org]

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           What    |Removed                     |Added
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          Component|c                           |tree-optimization
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445