[Bug tree-optimization/46216] [4.6 Regression] ICE: SSA corruption

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46216

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-02 
16:58:47 UTC ---
Author: rguenth
Date: Tue Nov  2 16:58:40 2010
New Revision: 166203

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166203
Log:
2010-11-02  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/46216
    * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
    Check if we can propagate from a POINTER_PLUS_EXPR before doing so.

    * gcc.dg/torture/pr46216.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr46216.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c