target-supports.exp (check_effective_target_powerpc_spe_nocache): New function.

	* lib/target-supports.exp (check_effective_target_powerpc_spe_nocache):
	New function.
	* gcc.target/powerpc/20030218-1.c: Skip if not powerpc_spe_nocache
	and use consistent CFLAGS.
	* gcc.target/powerpc/20030505.c: Likewise.
	* gcc.target/powerpc/20081204-1.c: Likewise.
	* gcc.target/powerpc/ppc-spe.c: Likewise.
	* gcc.target/powerpc/spe1.c: Likewise.
	* g++.dg/ext/spe1.C: Likewise.
	* g++.dg/other/opaque-1.C: Likewise.
	* g++.dg/other/opaque-2.C: Likewise.
	* g++.dg/other/opaque-3.C: Likewise.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>
Co-Authored-By: Nathan Froyd <froydnj@codesourcery.com>

From-SVN: r143379