[Bug rtl-optimization/48695] [4.6/4.7 Regression] Runtime with an array of std::vectors

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48695

--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-04-20 
13:11:12 UTC ---
Author: rguenth
Date: Wed Apr 20 13:11:06 2011
New Revision: 172768

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=172768
Log:
2011-04-20  Richard Guenther  <rguent...@suse.de>

    PR middle-end/48695
    * tree-ssa-alias.c (aliasing_component_refs_p): Compute base
    objects and types here.  Adjust for their offset before
    comparing.

    * g++.dg/torture/pr48695.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr48695.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-alias.c