Support Intel AMX-COMPLEX

Support Intel AMX-COMPLEX

gcc/ChangeLog:

	* common/config/i386/cpuinfo.h (get_available_features):
	Detect AMX-COMPLEX.
	* common/config/i386/i386-common.cc
	(OPTION_MASK_ISA2_AMX_COMPLEX_SET,
	OPTION_MASK_ISA2_AMX_COMPLEX_UNSET): New.
	(ix86_handle_option): Handle -mamx-complex.
	* common/config/i386/i386-cpuinfo.h (enum processor_features):
	Add FEATURE_AMX_COMPLEX.
	* common/config/i386/i386-isas.h: Add ISA_NAME_TABLE_ENTRY for
	amx-complex.
	* config.gcc: Add amxcomplexintrin.h.
	* config/i386/cpuid.h (bit_AMX_COMPLEX): New.
	* config/i386/i386-c.cc (ix86_target_macros_internal): Define
	__AMX_COMPLEX__.
	* config/i386/i386-isa.def (AMX_COMPLEX): Add DEF_PTA(AMX_COMPLEX).
	* config/i386/i386-options.cc (ix86_valid_target_attribute_inner_p):
	Handle amx-complex.
	* config/i386/i386.opt: Add option -mamx-complex.
	* config/i386/immintrin.h: Include amxcomplexintrin.h.
	* doc/extend.texi: Document amx-complex.
	* doc/invoke.texi: Document -mamx-complex.
	* doc/sourcebuild.texi: Document target amx-complex.
	* config/i386/amxcomplexintrin.h: New file.

gcc/testsuite/ChangeLog:

	* g++.dg/other/i386-2.C: Add -mamx-complex.
	* g++.dg/other/i386-3.C: Ditto.
	* gcc.target/i386/amx-check.h: Add cpu check for AMX-COMPLEX.
	* gcc.target/i386/amx-helper.h: Add amx-complex support.
	* gcc.target/i386/funcspec-56.inc: Add new target attribute.
	* gcc.target/i386/sse-12.c: Add -mamx-complex.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-14.c: Ditto.
	* gcc.target/i386/sse-22.c: Add amx-complex.
	* gcc.target/i386/sse-23.c: Ditto.
	* lib/target-supports.exp (check_effective_target_amx_complex): New.
	* gcc.target/i386/amxcomplex-asmatt-1.c: New test.
	* gcc.target/i386/amxcomplex-asmintel-1.c: Ditto.
	* gcc.target/i386/amxcomplex-cmmimfp16ps-2.c: Ditto.
	* gcc.target/i386/amxcomplex-cmmrlfp16ps-2.c: Ditto.