AVX-512. Extend gather insn patterns.

AVX-512. Extend gather insn patterns.

gcc/
	* config/i386/sse.md
	(define_expand "<avx512>_gathersi<mode>"): Rename from
	"avx512f_gathersi<mode>".
	(define_insn "*avx512f_gathersi<mode>"): Use VI48F.
	(define_insn "*avx512f_gathersi<mode>_2"): Ditto.
	(define_expand "<avx512>_gatherdi<mode>"): Rename from
	"avx512f_gatherdi<mode>".
	(define_insn "*avx512f_gatherdi<mode>"): Use VI48F.
	(define_insn "*avx512f_gatherdi<mode>_2"): Use VI48F, add 128/256-bit
	wide versions.
	(define_expand "<avx512>_scattersi<mode>"): Rename from
	"avx512f_scattersi<mode>".
	(define_insn "*avx512f_scattersi<mode>"): Use VI48F.
	(define_expand "<avx512>_scatterdi<mode>"): Rename from
	"avx512f_scatterdi<mode>".
	(define_insn "*avx512f_scatterdi<mode>"): Use VI48F.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215201 138bc75d-0d04-0410-961f-82ee72b054a4