* gcc.target/mips/fix-r10000-6.c: Add dg-message to look for
	the note about changed semantics of NAND builtin.
	* gcc.target/mips/fix-r10000-6.c: Ditto.
	* gcc.target/mips/atomic-memory-1.c: Ditto.
	(main): Correct __sync_nand_and_fetch results.

From-SVN: r142564