gcc/
	* config/m68k/m68k.c (m68k_get_function_kind): Assert we're never
	given a non-function.
	(m68k_ok_for_sibcall_p): Only sibcall functions of the same kind.

gcc/testsuite/
	* gcc.target/m68k/interrupt-1.c: New.

Co-Authored-By: Kazu Hirata <kazu@codesourcery.com>

From-SVN: r127880