[Bug tree-optimization/52445] [4.6/4.7 Regression] conditional store replacement causes segfault in generated code

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52445

--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-03-01 
10:47:25 UTC ---
Ok with

+      && TREE_CODE (TREE_OPERAND (exp, 0)) == SSA_NAME
+      && host_integerp (TREE_OPERAND (exp, 1), 0))

also checking that int_size_in_bytes does not return -1.