nfp_swreg_to_rereg
reg->dst = nfp_swreg_to_rereg(dst, true, false, NULL);
reg->areg = nfp_swreg_to_rereg(rreg, false, has_imm8, ®->i8);
reg->breg = nfp_swreg_to_rereg(lreg, false, has_imm8, ®->i8);
reg->areg = nfp_swreg_to_rereg(lreg, false, has_imm8, ®->i8);
reg->breg = nfp_swreg_to_rereg(rreg, false, has_imm8, ®->i8);