Fix SSE bits dependencies.

Fix SSE bits dependencies.

gcc/
	PR target/82812
	* common/config/i386/i386-common.c
	(OPTION_MASK_ISA_GENERAL_REGS_ONLY_UNSET): Remove MPX from flag.
	(ix86_handle_option): Move MPX to isa_flags2 and GFNI to isa_flags.
	* config/i386/i386-c.c (ix86_target_macros_internal): Ditto.
	* config/i386/i386.opt: Ditto.
	* config/i386/i386.c (ix86_target_string): Ditto.
	(ix86_option_override_internal): Ditto.
	(ix86_init_mpx_builtins): Move MPX to args2.
	(ix86_expand_builtin): Special handling for OPTION_MASK_ISA_GFNI.
	* config/i386/i386-builtin.def (__builtin_ia32_vgf2p8affineinvqb_v64qi,
	__builtin_ia32_vgf2p8affineinvqb_v64qi_mask,
	__builtin_ia32_vgf2p8affineinvqb_v32qi,
	__builtin_ia32_vgf2p8affineinvqb_v32qi_mask,
	__builtin_ia32_vgf2p8affineinvqb_v16qi,
	__builtin_ia32_vgf2p8affineinvqb_v16qi_mask): Move to ARGS array.

From-SVN: r254507