Support Intel MOVRS

Support Intel MOVRS

gcc/ChangeLog:

	* builtins.cc (expand_builtin_prefetch): Expand for
	prefetchrst2.
	* common/config/i386/cpuinfo.h (get_available_features): Detect movrs.
	* common/config/i386/i386-common.cc
	(OPTION_MASK_ISA2_MOVRS_SET): New.
	(OPTION_MASK_ISA2_MOVRS_UNSET): Ditto.
	(ix86_handle_option): Handle -mmovrs.
	* common/config/i386/i386-cpuinfo.h
	(enum processor_features): Add FEATURE_MOVRS.
	* common/config/i386/i386-isas.h: Add ISA_NAME_TABLE_ENTRY for movrs.
	* config.gcc: Add movrsintrin.h
	* config/i386/cpuid.h (bit_MOVRS): New.
	* config/i386/i386-builtin-types.def:
	Add DEF_FUNCTION_TYPE (CHAR, PCCHAR), (SHORT, PCSHORT), (INT, PCINT),
	(INT64, PCINT64).
	* config/i386/i386-builtin.def (BDESC): Add new builtins.
	* config/i386/i386-c.cc (ix86_target_macros_internal): Add
	__MOVRS__.
	* config/i386/i386-expand.cc (ix86_expand_special_args_builtin): Define
	__MOVRS__.
	* config/i386/i386-isa.def (MOVRS): Add DEF_PTA(MOVRS)
	* config/i386/i386-options.cc (ix86_valid_target_attribute_inner_p):
	Handle movrs.
	* config/i386/i386.md (movrs<mode>): New.
	* config/i386/i386.opt: Add option -mmovrs.
	* config/i386/i386.opt.urls: Regenerated.
	* config/i386/immintrin.h: Include movrsintrin.h
	* config/i386/sse.md (unspecv): Add UNSPEC_VMOVRS.
	(VI1248_AVX10_2): New.
	(avx10_2_movrs_vmovrs<ssemodesuffix><mode><mask_name>): New define_insn.
	* config/i386/xmmintrin.h: Add prefetchrst2.
	* doc/extend.texi: Document movrs.
	* doc/invoke.texi: Document -mmovrs.
	* doc/rtl.texi: Document extension of prefetchrst2.
	* doc/sourcebuild.texi: Document target movrs.
	* config/i386/movrsintrin.h: New.

gcc/testsuite/ChangeLog:

	* g++.dg/other/i386-2.C: Add -mmovrs.
	* g++.dg/other/i386-3.C: Ditto.
	* gcc.c-torture/execute/builtin-prefetch-1.c: Expand rws.
	* gcc.dg/builtin-prefetch-1.c: Ditto.
	* gcc.target/i386/avx-1.c: Ditto.
	* gcc.target/i386/avx-2.c: Ditto.
	* gcc.target/i386/funcspec-56.inc: Add new target attribute.
	* gcc.target/i386/sse-12.c: Add -mmovrs.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-14.c: Ditto.
	* gcc.target/i386/sse-22.c: Add movrs.
	* gcc.target/i386/sse-23.c: Ditto
	* gcc.target/i386/avx10_2-512-movrs-1.c: New test.
	* gcc.target/i386/avx10_2-movrs-1.c: Ditto.
	* gcc.target/i386/movrs-1.c: Ditto.

Co-authored-by: Haochen Jiang <haochen.jiang@intel.com>