PR target/66560
	* config/i386/predicates.md (addsub_vm_operator): New predicate.
	(addsub_vs_operator): Ditto.
	(addsub_vs_parallel): Ditto.
	* config/i386/sse.md (ssedoublemode): Add V4SF and V2DF modes.
	(avx_addsubv4df3, avx_addsubv8sf3, sse3_addsubv2df3, sse3_addsubv4sf3):
	Put minus RTX before plus and adjust vec_merge selector.
	(*avx_addsubv4df3_1, *avx_addsubv4df3_1s, *sse3_addsubv2df3_1)
	(*sse_addsubv2df3_1s, *avx_addsubv8sf3_1, *avx_addsubv8sf3_1s)
	(*sse3_addsubv4sf3_1, *sse_addsubv4sf3_1s): Remove insn patterns.
	(addsub vec_merge splitters): New combiner splitters.
	(addsub vec_select/vec_concat splitters): Ditto.

testsuite/ChangeLog:

	PR target/66560
	* gcc.target/i386/pr66560-1.c: New test.
	* gcc.target/i386/pr66560-2.c: Ditto.
	* gcc.target/i386/pr66560-3.c: Ditto.
	* gcc.target/i386/pr66560-4.c: Ditto.

From-SVN: r224824