tree-vrp.c (VR_INITIALIZER): New define.

tree-vrp.c (VR_INITIALIZER): New define.

2012-06-14  Richard Guenther  <rguenther@suse.de>

	* tree-vrp.c (VR_INITIALIZER): New define.
	(ranges_from_anti_range): New function.
	(extract_range_from_binary_expr_1): Decompose operations on
	VR_ANTI_RANGEs to operations on VR_RANGE.
	(extract_range_from_unary_expr_1): Likewise.
	(extract_range_from_binary_expr_1, extract_range_from_binary_expr,
	extract_range_from_unary_expr_1, extract_range_from_unary_expr,
	extract_range_from_cond_expr, adjust_range_with_scev,
	vrp_visit_assignment_or_call, vrp_visit_phi_node,
	simplify_bit_ops_using_ranges): Use VR_INITIALIZER.

From-SVN: r188551