1 //===------------ llvm/MC/MCDecoderOps.h - Decoder driver -------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // Disassembler decoder state machine driver. 9 //===----------------------------------------------------------------------===// 10 #ifndef LLVM_MC_MCDECODEROPS_H 11 #define LLVM_MC_MCDECODEROPS_H 12 13 namespace llvm::MCD { 14 15 // Disassembler state machine opcodes. 16 // nts_t is either uint16_t or uint24_t based on whether large decoder table is 17 // enabled. 18 enum DecoderOps { 19 OPC_ExtractField = 1, // OPC_ExtractField(uleb128 Start, uint8_t Len) 20 OPC_FilterValue, // OPC_FilterValue(uleb128 Val, nts_t NumToSkip) 21 OPC_FilterValueOrFail, // OPC_FilterValueOrFail(uleb128 Val) 22 OPC_CheckField, // OPC_CheckField(uleb128 Start, uint8_t Len, 23 // uleb128 Val, nts_t NumToSkip) 24 OPC_CheckFieldOrFail, // OPC_CheckFieldOrFail(uleb128 Start, uint8_t Len, 25 // uleb128 Val) 26 OPC_CheckPredicate, // OPC_CheckPredicate(uleb128 PIdx, nts_t NumToSkip) 27 OPC_CheckPredicateOrFail, // OPC_CheckPredicateOrFail(uleb128 PIdx) 28 OPC_Decode, // OPC_Decode(uleb128 Opcode, uleb128 DIdx) 29 OPC_TryDecode, // OPC_TryDecode(uleb128 Opcode, uleb128 DIdx, 30 // nts_t NumToSkip) 31 OPC_TryDecodeOrFail, // OPC_TryDecodeOrFail(uleb128 Opcode, uleb128 DIdx) 32 OPC_SoftFail, // OPC_SoftFail(uleb128 PMask, uleb128 NMask) 33 OPC_Fail // OPC_Fail() 34 }; 35 36 } // namespace llvm::MCD 37 38 #endif 39