r125844 - in /branches/gcc-4_2-branch/gcc: Chan...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Jun 19 09:24:35 2007
New Revision: 125844

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125844
Log:
2007-06-19  Richard Guenther  <rguenther@suse.de>
	Michael Matz  <matz@suse.de>

	PR tree-optimization/30252
	* tree-ssa-structalias.c (solution_set_add): Make sure to
	preserve all relevant vars.
	(handle_ptr_arith): Make sure to only handle positive
	offsets.
	(push_fields_onto_fieldstack): Create fields for empty
	bases.

	* g++.dg/opt/pr30252.C: New testcase.

Added:
    branches/gcc-4_2-branch/gcc/testsuite/g++.dg/opt/pr30252.C
Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_2-branch/gcc/tree-ssa-structalias.c