2017-03-07  Martin Liska  <mliska@suse.cz>

	PR middle-end/68270
	* tree-chkp.c (chkp_may_narrow_to_field): Add new argument ref.
	Use array_at_struct_end_p instead of DECL_CHAIN (field).
	(chkp_narrow_bounds_for_field): Likewise.
	(chkp_parse_array_and_component_ref): Pass one more argument to
	call.
2017-03-07  Martin Liska  <mliska@suse.cz>

	PR middle-end/68270
	* g++.dg/pr68270.C: New test.

From-SVN: r245951