re PR sanitizer/55702 (ICE: in instrument_func_exit, at tsan.c:684 with -fsanitize=thread and __builtin_return())

	PR sanitizer/55702
	* tsan.c (instrument_func_exit): Allow BUILT_IN_RETURN
	functions.

	* gcc.dg/pr55702.c: New test.

From-SVN: r197430