rs6000.c (rs6000_function_arg): If a float argument does not fit fully into floating...

rs6000.c (rs6000_function_arg): If a float argument does not fit fully into floating-point registers...

gcc/

	* config/rs6000/rs6000.c (rs6000_function_arg): If a float argument
	does not fit fully into floating-point registers, and there is still
	space in the register parameter area, issue -Wpsabi note that the ABI
	will change in a future GCC release.

gcc/testsuite/

	* gcc.target/powerpc/ppc64-abi-warn-1.c: New test.

From-SVN: r213023