re PR tree-optimization/44861 (internal compiler error: in vectorizable_load, at tree-vect-stmts.c:3812)

2010-07-08  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/44861
	* tree-vect-stmts.c (vectorizable_store): Preserve TBAA
	information when building MEM_REFs.
	(vectorizable_load): Likewise.
	* tree-vect-data-refs.c (vect_setup_realignment): Likewise.

	* g++.dg/vect/pr44861.cc: New testcase.

From-SVN: r161949