2535     default: return NULL;  in csr_name()
2604             default: op = rv_op_c_addi; break;  in decode_inst_opcode()
2631             default: op = rv_op_c_lui; break;  in decode_inst_opcode()
2696                 default: op = rv_op_c_mv; break;  in decode_inst_opcode()
2704                     default: op = rv_op_c_jalr; break;  in decode_inst_opcode()
2707                 default: op = rv_op_c_add; break;  in decode_inst_opcode()
2910                     default:  in decode_inst_opcode()
3160                 default: op = rv_op_pack; break;  in decode_inst_opcode()
3227                 default: op = rv_op_packw; break;  in decode_inst_opcode()
5052         default: break;  in check_constraints()
5202             default:  in format_inst()
5310             default:  in format_inst()
5319         default:  in format_inst()
5505         default:  in print_insn_riscv()