i386.md (mmx_isa): Rename x64, x64_noavx and x64_avx to sse, sse_noavx and avx.

i386.md (mmx_isa): Rename x64, x64_noavx and x64_avx to sse, sse_noavx and avx.

	* config/i386/i386.md (mmx_isa): Rename x64, x64_noavx and x64_avx
	to sse, sse_noavx and avx.  Update all uses.

	* config/i386/mmx.md (sse_movntq): Add "isa" attribute.
	(*mmx_<plusminus_insn><mode>3): Ditto.
	(*mmx_mulv4hi3"): Ditto.
	(*mmx_smulv4hi3_highpart): Ditto.
	(*mmx_umulv4hi3_highpart): Ditto.
	(*mmx_pmaddwd): Ditto.
	(*sse2_umulv1siv1di3): Ditto.
	(*mmx_<code>v4hi3): Ditto.
	(*mmx_<code>v8qi3): Ditto.
	(mmx_ashr<mode>3): Ditto.
	("mmx_<shift_insn><mode>3): Ditto.
	(*mmx_eq<mode>3): Ditto.
	(mmx_gt<mode>3): Ditto.
	(mmx_andnot<mode>3): Ditto.
	(*mmx_<code><mode>3): Ditto.
	(*mmx_pinsrw): Ditto.
	(*mmx_pextrw): Ditto.
	(mmx_pshufw_1): Ditto.
	(*mmx_uavgv8qi3): Ditto.
	(*mmx_uavgv4hi3): Ditto.
	("mmx_psadbw): Ditto.
	* config/i386/sse.md (sse_cvtps2pi): Ditto.
	(sse_cvttps2pi): Ditto.
	(ssse3_pmaddubsw): Ditto.
	(*ssse3_pmulhrswv4hi3): Ditto.
	(ssse3_psign<mode>3): Ditto.

From-SVN: r272834