* gcc.dg/tree-ssa/stdarg-2.c, gcc.dg/tree-ssa/stdarg-4.c:
	Condition PowerPC tests for saving FPRs on powerpc_fprs.
	* gcc.target/powerpc/compress-float-ppc.c,
	gcc.target/powerpc/compress-float-ppc-pic.c: Only test if
	powerpc_fprs.
	* gcc.target/powerpc/rs6000-power2-2.c: Only test if powerpc_fprs;
	do not pass -mhard-float.

From-SVN: r118912