[Bug tree-optimization/53163] [4.7/4.8 Regression] crash due to null ptr deref

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53163

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-05-02 09:56:43 UTC ---
Author: jakub
Date: Wed May  2 09:56:39 2012
New Revision: 187039

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187039
Log:
    PR tree-optimization/53163
    * tree-ssa-phiopt.c (cond_if_else_store_replacement): Don't ignore
    return value from compute_all_dependences.

    * gcc.c-torture/compile/pr53163.c: New test.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/gcc.c-torture/compile/pr53163.c
Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_7-branch/gcc/tree-ssa-phiopt.c