Add a general mapping from internal fns to target insns

Several existing internal functions map directly to an instruction
defined in target-insns.def.  This patch makes it easier to define
more such functions in future.

This should help to reduce cut-&-paste, but more importantly, it allows
the difference between optab functions and target-insns.def functions
to be abstracted away; both are now treated as “directly-mapped”.

gcc/
	* internal-fn.def (DEF_INTERNAL_INSN_FN): New macro.
	(GOMP_SIMT_ENTER_ALLOC, GOMP_SIMT_EXIT, GOMP_SIMT_LANE)
	(GOMP_SIMT_LAST_LANE, GOMP_SIMT_ORDERED_PRED, GOMP_SIMT_VOTE_ANY)
	(GOMP_SIMT_XCHG_BFLY, GOMP_SIMT_XCHG_IDX): Use it.
	* internal-fn.h (direct_internal_fn_info::directly_mapped): New
	member variable.
	(direct_internal_fn_info::vectorizable): Reduce to 1 bit.
	(direct_internal_fn_p): Also return true for internal functions
	that map directly to instructions defined target-insns.def.
	(direct_internal_fn): Adjust comment accordingly.
	* internal-fn.cc (direct_insn, optab1, optab2, vectorizable_optab1)
	(vectorizable_optab2): New local macros.
	(not_direct): Initialize directly_mapped.
	(mask_load_direct, load_lanes_direct, mask_load_lanes_direct)
	(gather_load_direct, len_load_direct, mask_store_direct)
	(store_lanes_direct, mask_store_lanes_direct, vec_cond_mask_direct)
	(vec_cond_direct, scatter_store_direct, len_store_direct)
	(vec_set_direct, unary_direct, binary_direct, ternary_direct)
	(cond_unary_direct, cond_binary_direct, cond_ternary_direct)
	(while_direct, fold_extract_direct, fold_left_direct)
	(mask_fold_left_direct, check_ptrs_direct): Use the macros above.
	(expand_GOMP_SIMT_ENTER_ALLOC, expand_GOMP_SIMT_EXIT): Delete
	(expand_GOMP_SIMT_LANE, expand_GOMP_SIMT_LAST_LANE): Likewise;
	(expand_GOMP_SIMT_ORDERED_PRED, expand_GOMP_SIMT_VOTE_ANY): Likewise.
	(expand_GOMP_SIMT_XCHG_BFLY, expand_GOMP_SIMT_XCHG_IDX): Likewise.
	(direct_internal_fn_types): Handle functions that map to instructions
	defined in target-insns.def.
	(direct_internal_fn_types): Likewise.
	(direct_internal_fn_supported_p): Likewise.
	(internal_fn_expanders): Likewise.

0 files changed, 0 insertions, 0 deletions