fold-const.c (get_pointer_modulus_and_residue): New parameter allow_func_align.

fold-const.c (get_pointer_modulus_and_residue): New parameter allow_func_align.

2009-03-28  Martin Jambor  <mjambor@suse.cz>

	* fold-const.c (get_pointer_modulus_and_residue): New parameter
	allow_func_align.
	(fold_binary): Allow function decl aligment consideration is the
	second argument is integer constant one.
	* tree-ssa-forwprop.c (simplify_bitwise_and): New function.
	(tree_ssa_forward_propagate_single_use_vars): Handle assing statements
	with BIT_AND_EXPR on the RHS by calling simplify_bitwise_and.

	* g++.dg/tree-ssa/fwprop-align.C: New test.

From-SVN: r145203