* gcc.misc-tests/i386-prefetch.exp: New.
	* gcc.misc-tests/i386-pf-3dnow-1.c: New test.
	* gcc.misc-tests/i386-pf-athlon-1.c: New test.
	* gcc.misc-tests/i386-pf-none-1.c: New test.
	* gcc.misc-tests/i386-pf-sse-1.c: New test.

From-SVN: r48876