gcc/testsuite/ChangeLog:

	PR tree-optimization/80936
	* gcc.dg/Wnonnull-2.c: New test.
	* gcc.dg/Wnonnull-3.c: New test.
	* gcc.dg/nonnull-3.c: Expect more warnings.

gcc/ChangeLog:

	PR tree-optimization/80936
	* builtins.def (bcmp, bcopy, bzero): Declare nonnull.

From-SVN: r276491