re PR sanitizer/63813 ([UBSAN] ICE in ubsan_type_descriptor, at ubsan.c:346)

re PR sanitizer/63813 ([UBSAN] ICE in ubsan_type_descriptor, at ubsan.c:346)

	PR sanitizer/63813
	* c-ubsan.c (ubsan_maybe_instrument_reference_or_call): Change type
	argument to ptype, set type to TREE_TYPE (ptype).  Don't call
	get_pointer_alignment for non-pointers.  Use ptype, or if it is
	reference type, corresponding pointer type, as type of kind
	argument.
	(ubsan_maybe_instrument_reference,
	ubsan_maybe_instrument_member_call): Adjust callers.

	* g++.dg/ubsan/pr63813.C: New test.

From-SVN: r217741