Enable Intel HRESET Instruction

Enable Intel HRESET Instruction

gcc/

	* common/config/i386/cpuinfo.h (get_available_features):
	Detect HRESET.
	* common/config/i386/i386-common.c (OPTION_MASK_ISA2_HRESET_SET,
	OPTION_MASK_ISA2_HRESET_UNSET): New macros.
	(ix86_handle_option): Handle -mhreset.
	* common/config/i386/i386-cpuinfo.h (enum processor_features):
	Add FEATURE_HRESET.
	* common/config/i386/i386-isas.h: Add ISA_NAMES_TABLE_ENTRY
	for hreset.
	* config.gcc: Add hresetintrin.h
	* config/i386/hresetintrin.h: New header file.
	* config/i386/x86gprintrin.h: Include hresetintrin.h.
	* config/i386/cpuid.h (bit_HRESET): New.
	* config/i386/i386-builtin.def: Add new builtin.
	* config/i386/i386-expand.c (ix86_expand_builtin):
	Handle new builtin.
	* config/i386/i386-c.c (ix86_target_macros_internal): Define
	__HRESET__.
	* config/i386/i386-options.c (isa2_opts): Add -mhreset.
	(ix86_valid_target_attribute_inner_p): Handle hreset.
	* config/i386/i386.h (TARGET_HRESET, TARGET_HRESET_P,
	PTA_HRESET): New.
	(PTA_ALDERLAKE): Add PTA_HRESET.
	* config/i386/i386.opt: Add option -mhreset.
	* config/i386/i386.md (UNSPECV_HRESET): New unspec.
	(hreset): New define_insn.
	* doc/invoke.texi: Document -mhreset.
	* doc/extend.texi: Document hreset.

gcc/testsuite/

	* gcc.target/i386/hreset-1.c: New test.
	* gcc.target/i386/funcspec-56.inc: Add new target attribute.
	* gcc.target/i386/x86gprintrin-1.c: Add -mhreset.
	* gcc.target/i386/x86gprintrin-2.c: Ditto.
	* gcc.target/i386/x86gprintrin-3.c: Ditto.
	* gcc.target/i386/x86gprintrin-4.c: Add mhreset.
	* gcc.target/i386/x86gprintrin-5.c: Ditto.