re PR tree-optimization/55079 (false positive -Warray-bounds (also seen at -O3 bootst...

re PR tree-optimization/55079 (false positive -Warray-bounds (also seen at -O3 bootstrap))

2012-12-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/55079
	* tree-vrp.c (extract_range_from_binary_expr_1): Handle MAX/MIN_EXPR
	for more cases.
	(register_edge_assert_for_2): Register asserts for post-in/decrement
	tests.
	(check_array_ref): Dump what expression we emit array bound
	warnings for.
	(search_for_addr_array): Likewise.

	* gcc.dg/Warray-bounds-9.c: New testcase.
	* gcc.dg/Warray-bounds-10.c: Likewise.
	* gcc.dg/tree-ssa/ssa-pre-1.c: Adjust.

From-SVN: r194388