* gcc.target/i386/sse-17.c: Include sse2-check.h.

	* gcc.target/i386/sse-17.c: Include sse2-check.h.
	(main): Change to void and rename to sse2_test.
	* gcc.dg/vect/costmodel/i386/i386-costmodel-vect.exp: Set
	dg-do-what-default to "compile" if SSE2 hardware is not available.
	* gcc.dg/vect/costmodel/i386/x86_64-costmodel-vect.exp: Ditto.
	* gcc.dg/vect/costmodel/x86_64/costmodel-vect-reduc-1char.c: Remove
	xfail vect_no_int_max from "vectorization not profitable" check.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@133504 138bc75d-0d04-0410-961f-82ee72b054a4