[Bug c++/47541] [4.5/4.6 Regression] For integer pointers, the value of ++*p is not written back to memory

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47541

--- Comment #11 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-01 09:47:26 UTC ---
Author: rguenth
Date: Tue Feb  1 09:47:21 2011
New Revision: 169468

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169468
Log:
2011-02-01  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/47541
    * tree-ssa-structalias.c (push_fields_onto_fieldstack): Make
    sure to have a field at offset zero.

    * g++.dg/torture/pr47541.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr47541.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-structalias.c