RISC-V: Refactor and clean expand_cond_len_{unop,binop,ternop}

This patch refactors the codes of expand_cond_len_{unop,binop,ternop}.
Introduces a new unified function expand_cond_len_op to do the main thing.
The expand_cond_len_{unop,binop,ternop} functions only care about how
to pass the operands to the intrinsic patterns.

gcc/ChangeLog:

	* config/riscv/autovec.md: Adjust
	* config/riscv/riscv-protos.h (RVV_VUNDEF): Clean.
	(get_vlmax_rtx): Exported.
	* config/riscv/riscv-v.cc (emit_nonvlmax_fp_ternary_tu_insn): Deleted.
	(emit_vlmax_masked_gather_mu_insn): Adjust.
	(get_vlmax_rtx): New func.
	(expand_load_store): Adjust.
	(expand_cond_len_unop): Call expand_cond_len_op.
	(expand_cond_len_op): New subroutine.
	(expand_cond_len_binop): Call expand_cond_len_op.
	(expand_cond_len_ternop): Call expand_cond_len_op.
	(expand_lanes_load_store): Adjust.

0 files changed, 0 insertions, 0 deletions