* gas/macros/macros.exp: xfail powerpc-*-aix.

	* gas/macros/macros.exp: xfail powerpc-*-aix.
	* gas/ppc/astest64.s: New.
	* gas/ppc/astest64.d: New.
	* gas/ppc/astest2_64.s: New.
	* gas/ppc/astest2_64.d: New.
	* gas/ppc/test1elf.asm: New.
	* gas/ppc/test1xcoff.asm: New.
	* gas/ppc/generate.sh: New. Generate new files below from above .asm
	* gas/ppc/test1elf32.s: New.
	* gas/ppc/test1elf32.d: New.
	* gas/ppc/test1elf64.s: New.
	* gas/ppc/test1elf64.d: New.
	* gas/ppc/test1xcoff32.s: New.
	* gas/ppc/test1xcoff32.d: New.
	* gas/ppc/ppc.exp: Run new tests.
	* gas/ppc/simpshft.s: Tweak align now that we get nops.