* gcc.dg/pr42629.c: Add dg-require-effective-target int32plus
	* gcc.c-torture/execute/cmpsi-2.c: Ditto
	* gcc.c-torture/execute/pr45262.c: Ditto
	* gcc.dg/torture/pr43165.c: Ditto.
	* gcc.dg/torture/pr47228.c: Ditto.
	* gcc.dg/tree-ssa/pr45144.c: Ditto.
	* gcc.dg/ipa/pr45644.c: Ditto.
	* gcc.c-torture/compile/pr43191.c: Ditto. Remove dg-skip-if for
	PDP11.

From-SVN: r172757