Support Intel AMX-MOVRS

Support Intel AMX-MOVRS

gcc/ChangeLog:

	* common/config/i386/cpuinfo.h (get_available_features):
	Detect AMX-MOVRS.
	* common/config/i386/i386-common.cc
	(OPTION_MASK_ISA2_AMX_MOVRS_SET): New.
	(OPTION_MASK_ISA2_AMX_MOVRS_UNSET): Ditto.
	(ix86_handle_option): Handle -mamx-movrs.
	* common/config/i386/i386-cpuinfo.h (enum processor_features):
	Add FEATURE_AMX_MOVRS.
	* common/config/i386/i386-isas.h: Add ISA_NAME_TABLE_ENTRY for
	amx-movrs.
	* config.gcc: Add amxmovrsintrin.h.
	* config/i386/cpuid.h (bit_AMX_MOVRS): New.
	* config/i386/i386-c.cc (ix86_target_macros_internal):
	Define __AMX_MOVRS__.
	* config/i386/i386-isa.def (AMX_MOVRS): Add DEF_PTA(AMX_MOVRS).
	* config/i386/i386-options.cc (ix86_valid_target_attribute_inner_p):
	Handle amx-movrs.
	* config/i386/i386.opt: Add option -mamx-movrs.
	* config/i386/i386.opt.urls: Regenerated.
	* config/i386/immintrin.h: Include amxmovrsintrin.h
	* doc/extend.texi: Document amx-movrs.
	* doc/invoke.texi: Document -mamx-movrs.
	* doc/sourcebuild.texi: Document target amx-movrs.
	* config/i386/amxmovrsintrin.h: New file.

gcc/testsuite/ChangeLog:

	* g++.dg/other/i386-2.C: Add -mamx-movrs.
	* g++.dg/other/i386-3.C: Ditto.
	* gcc.target/i386/amx-check.h: Add new check for amx-movrs.
	* gcc.target/i386/funcspec-56.inc: Add new target attribute.
	* gcc.target/i386/sse-12.c: Add -mamx-movrs.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-14.c: Ditto.
	* gcc.target/i386/sse-22.c: Add amx-movrs.
	* gcc.target/i386/sse-23.c: Ditto.
	* lib/target-supports.exp (check_effective_target_amx_movrs): New.
	* gcc.target/i386/amxmovrs-asmatt-1.c: New test.
	* gcc.target/i386/amxmovrs-asmintel-1.c: Ditto.
	* gcc.target/i386/amxmovrs-t2rpntlvw-2.c: Ditto.
	* gcc.target/i386/amxmovrs-tileloaddrs-2.c: Ditto.