[Bug tree-optimization/49161] [4.5/4.6/4.7 Regression] Fix VRP on switch stmts

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49161

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-25 14:35:14 UTC ---
Ick.  The patch looks ok to me.