2014-09-25  Andreas Arnez  <arnez@linux.vnet.ibm.com>

	PR 63300/debug
	* tree.c (check_base_type): New.
	(check_qualified_type): Exploit new helper function above.
	* tree.h (check_base_type): New prototype.
	* dwarf2out.c (get_nearest_type_subqualifiers): New.
	(modified_type_die): Fix handling for qualifiers.  Qualifiers to
	"peel off" are now determined using get_nearest_type_subqualifiers.

2014-09-25  Mark Wielaard  <mjw@redhat.com>

	PR 63300/debug
	* gcc.dg/debug/dwarf2/stacked-qualified-types-1.c: New testcase.
	* gcc.dg/debug/dwarf2/stacked-qualified-types-2.c: Likewise.
	* gcc.dg/guality/pr63300-const-volatile.c: New testcase.

From-SVN: r215582