> Could you try something like this? that should be more generic:
>
> (define_split
> [(set (match_operand:VB 0 "register_operand")
> (if_then_else:VB
> (unspec:VB
> [(match_operand:VB 1 "vector_all_trues_mask_operand")
> (match_operand 4 "vector_length_operand")
> (match_operand 5 "const_int_operand")
> (match_operand 6 "const_int_operand")
> (reg:SI VL_REGNUM)
> (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)
> (match_operand:VB 3 "vector_move_operand")
> (match_operand:VB 2 "vector_undef_operand")))]
> "TARGET_VECTOR && reload_completed"
Remove the reload_completed should work well, but you might need more
test, I didn't run full test on this change :P
> [(const_int 0)]
> {
> emit_insn (gen_pred_mov (<MODE>mode, operands[0], CONST1_RTX (<MODE>mode),
> RVV_VUNDEF (<MODE>mode), CONST0_RTX (<MODE>mode),
> operands[4], operands[5]));
> DONE;
> }
> )
