r177847 - in /trunk/gcc: ChangeLog expr.c tree-...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Aug 18 08:33:21 2011
New Revision: 177847

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177847
Log:
2011-08-18  Richard Guenther  <rguenther@suse.de>

	* expr.c (get_inner_reference): Sign-extend the constant
	twos-complement offset before doing arbitrary precision
	arithmetic on it.
	* tree-ssa-structalias.c (get_constraint_for_ptr_offset): Likewise.
	(get_constraint_for_1): Pass the offset of a MEM_REF unchanged
	to get_constraint_for_ptr_offset.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/expr.c
    trunk/gcc/tree-ssa-structalias.c