| //===- X86RecognizableInstr.cpp - Disassembler instruction spec --*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is part of the X86 Disassembler Emitter. |
| // It contains the implementation of a single recognizable instruction. |
| // Documentation for the disassembler emitter in general can be found in |
| // X86DisassemblerEmitter.h. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "X86RecognizableInstr.h" |
| #include "X86DisassemblerShared.h" |
| #include "X86ModRMFilters.h" |
| #include "llvm/Support/ErrorHandling.h" |
| #include <string> |
| |
| using namespace llvm; |
| using namespace X86Disassembler; |
| |
| /// byteFromBitsInit - Extracts a value at most 8 bits in width from a BitsInit. |
| /// Useful for switch statements and the like. |
| /// |
| /// @param init - A reference to the BitsInit to be decoded. |
| /// @return - The field, with the first bit in the BitsInit as the lowest |
| /// order bit. |
| static uint8_t byteFromBitsInit(BitsInit &init) { |
| int width = init.getNumBits(); |
| |
| assert(width <= 8 && "Field is too large for uint8_t!"); |
| |
| int index; |
| uint8_t mask = 0x01; |
| |
| uint8_t ret = 0; |
| |
| for (index = 0; index < width; index++) { |
| if (cast<BitInit>(init.getBit(index))->getValue()) |
| ret |= mask; |
| |
| mask <<= 1; |
| } |
| |
| return ret; |
| } |
| |
| /// byteFromRec - Extract a value at most 8 bits in with from a Record given the |
| /// name of the field. |
| /// |
| /// @param rec - The record from which to extract the value. |
| /// @param name - The name of the field in the record. |
| /// @return - The field, as translated by byteFromBitsInit(). |
| static uint8_t byteFromRec(const Record* rec, const std::string &name) { |
| BitsInit* bits = rec->getValueAsBitsInit(name); |
| return byteFromBitsInit(*bits); |
| } |
| |
| RecognizableInstr::RecognizableInstr(DisassemblerTables &tables, |
| const CodeGenInstruction &insn, |
| InstrUID uid) { |
| UID = uid; |
| |
| Rec = insn.TheDef; |
| Name = Rec->getName(); |
| Spec = &tables.specForUID(UID); |
| |
| if (!Rec->isSubClassOf("X86Inst")) { |
| ShouldBeEmitted = false; |
| return; |
| } |
| |
| OpPrefix = byteFromRec(Rec, "OpPrefixBits"); |
| OpMap = byteFromRec(Rec, "OpMapBits"); |
| Opcode = byteFromRec(Rec, "Opcode"); |
| Form = byteFromRec(Rec, "FormBits"); |
| Encoding = byteFromRec(Rec, "OpEncBits"); |
| |
| OpSize = byteFromRec(Rec, "OpSizeBits"); |
| AdSize = byteFromRec(Rec, "AdSizeBits"); |
| HasREX_WPrefix = Rec->getValueAsBit("hasREX_WPrefix"); |
| HasVEX_4V = Rec->getValueAsBit("hasVEX_4V"); |
| VEX_WPrefix = byteFromRec(Rec,"VEX_WPrefix"); |
| IgnoresVEX_L = Rec->getValueAsBit("ignoresVEX_L"); |
| HasEVEX_L2Prefix = Rec->getValueAsBit("hasEVEX_L2"); |
| HasEVEX_K = Rec->getValueAsBit("hasEVEX_K"); |
| HasEVEX_KZ = Rec->getValueAsBit("hasEVEX_Z"); |
| HasEVEX_B = Rec->getValueAsBit("hasEVEX_B"); |
| IsCodeGenOnly = Rec->getValueAsBit("isCodeGenOnly"); |
| ForceDisassemble = Rec->getValueAsBit("ForceDisassemble"); |
| CD8_Scale = byteFromRec(Rec, "CD8_Scale"); |
| |
| Name = Rec->getName(); |
| |
| Operands = &insn.Operands.OperandList; |
| |
| HasVEX_LPrefix = Rec->getValueAsBit("hasVEX_L"); |
| |
| EncodeRC = HasEVEX_B && |
| (Form == X86Local::MRMDestReg || Form == X86Local::MRMSrcReg); |
| |
| // Check for 64-bit inst which does not require REX |
| Is32Bit = false; |
| Is64Bit = false; |
| // FIXME: Is there some better way to check for In64BitMode? |
| std::vector<Record*> Predicates = Rec->getValueAsListOfDefs("Predicates"); |
| for (unsigned i = 0, e = Predicates.size(); i != e; ++i) { |
| if (Predicates[i]->getName().find("Not64Bit") != Name.npos || |
| Predicates[i]->getName().find("In32Bit") != Name.npos) { |
| Is32Bit = true; |
| break; |
| } |
| if (Predicates[i]->getName().find("In64Bit") != Name.npos) { |
| Is64Bit = true; |
| break; |
| } |
| } |
| |
| if (Form == X86Local::Pseudo || (IsCodeGenOnly && !ForceDisassemble)) { |
| ShouldBeEmitted = false; |
| return; |
| } |
| |
| // Special case since there is no attribute class for 64-bit and VEX |
| if (Name == "VMASKMOVDQU64") { |
| ShouldBeEmitted = false; |
| return; |
| } |
| |
| ShouldBeEmitted = true; |
| } |
| |
| void RecognizableInstr::processInstr(DisassemblerTables &tables, |
| const CodeGenInstruction &insn, |
| InstrUID uid) |
| { |
| // Ignore "asm parser only" instructions. |
| if (insn.TheDef->getValueAsBit("isAsmParserOnly")) |
| return; |
| |
| RecognizableInstr recogInstr(tables, insn, uid); |
| |
| if (recogInstr.shouldBeEmitted()) { |
| recogInstr.emitInstructionSpecifier(); |
| recogInstr.emitDecodePath(tables); |
| } |
| } |
| |
| #define EVEX_KB(n) (HasEVEX_KZ && HasEVEX_B ? n##_KZ_B : \ |
| (HasEVEX_K && HasEVEX_B ? n##_K_B : \ |
| (HasEVEX_KZ ? n##_KZ : \ |
| (HasEVEX_K? n##_K : (HasEVEX_B ? n##_B : n))))) |
| |
| InstructionContext RecognizableInstr::insnContext() const { |
| InstructionContext insnContext; |
| |
| if (Encoding == X86Local::EVEX) { |
| if (HasVEX_LPrefix && HasEVEX_L2Prefix) { |
| errs() << "Don't support VEX.L if EVEX_L2 is enabled: " << Name << "\n"; |
| llvm_unreachable("Don't support VEX.L if EVEX_L2 is enabled"); |
| } |
| // VEX_L & VEX_W |
| if (!EncodeRC && HasVEX_LPrefix && (VEX_WPrefix == X86Local::VEX_W1 || |
| VEX_WPrefix == X86Local::VEX_W1X)) { |
| if (OpPrefix == X86Local::PD) |
| insnContext = EVEX_KB(IC_EVEX_L_W_OPSIZE); |
| else if (OpPrefix == X86Local::XS) |
| insnContext = EVEX_KB(IC_EVEX_L_W_XS); |
| else if (OpPrefix == X86Local::XD) |
| insnContext = EVEX_KB(IC_EVEX_L_W_XD); |
| else if (OpPrefix == X86Local::PS) |
| insnContext = EVEX_KB(IC_EVEX_L_W); |
| else { |
| errs() << "Instruction does not use a prefix: " << Name << "\n"; |
| llvm_unreachable("Invalid prefix"); |
| } |
| } else if (!EncodeRC && HasVEX_LPrefix) { |
| // VEX_L |
| if (OpPrefix == X86Local::PD) |
| insnContext = EVEX_KB(IC_EVEX_L_OPSIZE); |
| else if (OpPrefix == X86Local::XS) |
| insnContext = EVEX_KB(IC_EVEX_L_XS); |
| else if (OpPrefix == X86Local::XD) |
| insnContext = EVEX_KB(IC_EVEX_L_XD); |
| else if (OpPrefix == X86Local::PS) |
| insnContext = EVEX_KB(IC_EVEX_L); |
| else { |
| errs() << "Instruction does not use a prefix: " << Name << "\n"; |
| llvm_unreachable("Invalid prefix"); |
| } |
| } else if (!EncodeRC && HasEVEX_L2Prefix && |
| (VEX_WPrefix == X86Local::VEX_W1 || |
| VEX_WPrefix == X86Local::VEX_W1X)) { |
| // EVEX_L2 & VEX_W |
| if (OpPrefix == X86Local::PD) |
| insnContext = EVEX_KB(IC_EVEX_L2_W_OPSIZE); |
| else if (OpPrefix == X86Local::XS) |
| insnContext = EVEX_KB(IC_EVEX_L2_W_XS); |
| else if (OpPrefix == X86Local::XD) |
| insnContext = EVEX_KB(IC_EVEX_L2_W_XD); |
| else if (OpPrefix == X86Local::PS) |
| insnContext = EVEX_KB(IC_EVEX_L2_W); |
| else { |
| errs() << "Instruction does not use a prefix: " << Name << "\n"; |
| llvm_unreachable("Invalid prefix"); |
| } |
| } else if (!EncodeRC && HasEVEX_L2Prefix) { |
| // EVEX_L2 |
| if (OpPrefix == X86Local::PD) |
| insnContext = EVEX_KB(IC_EVEX_L2_OPSIZE); |
| else if (OpPrefix == X86Local::XD) |
| insnContext = EVEX_KB(IC_EVEX_L2_XD); |
| else if (OpPrefix == X86Local::XS) |
| insnContext = EVEX_KB(IC_EVEX_L2_XS); |
| else if (OpPrefix == X86Local::PS) |
| insnContext = EVEX_KB(IC_EVEX_L2); |
| else { |
| errs() << "Instruction does not use a prefix: " << Name << "\n"; |
| llvm_unreachable("Invalid prefix"); |
| } |
| } |
| else if (VEX_WPrefix == X86Local::VEX_W1 || |
| VEX_WPrefix == X86Local::VEX_W1X) { |
| // VEX_W |
| if (OpPrefix == X86Local::PD) |
| insnContext = EVEX_KB(IC_EVEX_W_OPSIZE); |
| else if (OpPrefix == X86Local::XS) |
| insnContext = EVEX_KB(IC_EVEX_W_XS); |
| else if (OpPrefix == X86Local::XD) |
| insnContext = EVEX_KB(IC_EVEX_W_XD); |
| else if (OpPrefix == X86Local::PS) |
| insnContext = EVEX_KB(IC_EVEX_W); |
| else { |
| errs() << "Instruction does not use a prefix: " << Name << "\n"; |
| llvm_unreachable("Invalid prefix"); |
| } |
| } |
| // No L, no W |
| else if (OpPrefix == X86Local::PD) |
| insnContext = EVEX_KB(IC_EVEX_OPSIZE); |
| else if (OpPrefix == X86Local::XD) |
| insnContext = EVEX_KB(IC_EVEX_XD); |
| else if (OpPrefix == X86Local::XS) |
| insnContext = EVEX_KB(IC_EVEX_XS); |
| else if (OpPrefix == X86Local::PS) |
| insnContext = EVEX_KB(IC_EVEX); |
| else { |
| errs() << "Instruction does not use a prefix: " << Name << "\n"; |
| llvm_unreachable("Invalid prefix"); |
| } |
| /// eof EVEX |
| } else if (Encoding == X86Local::VEX || Encoding == X86Local::XOP) { |
| if (HasVEX_LPrefix && (VEX_WPrefix == X86Local::VEX_W1 || |
| VEX_WPrefix == X86Local::VEX_W1X)) { |
| if (OpPrefix == X86Local::PD) |
| insnContext = IC_VEX_L_W_OPSIZE; |
| else if (OpPrefix == X86Local::XS) |
| insnContext = IC_VEX_L_W_XS; |
| else if (OpPrefix == X86Local::XD) |
| insnContext = IC_VEX_L_W_XD; |
| else if (OpPrefix == X86Local::PS) |
| insnContext = IC_VEX_L_W; |
| else { |
| errs() << "Instruction does not use a prefix: " << Name << "\n"; |
| llvm_unreachable("Invalid prefix"); |
| } |
| } else if (OpPrefix == X86Local::PD && HasVEX_LPrefix) |
| insnContext = IC_VEX_L_OPSIZE; |
| else if (OpPrefix == X86Local::PD && (VEX_WPrefix == X86Local::VEX_W1 || |
| VEX_WPrefix == X86Local::VEX_W1X)) |
| insnContext = IC_VEX_W_OPSIZE; |
| else if (OpPrefix == X86Local::PD) |
| insnContext = IC_VEX_OPSIZE; |
| else if (HasVEX_LPrefix && OpPrefix == X86Local::XS) |
| insnContext = IC_VEX_L_XS; |
| else if (HasVEX_LPrefix && OpPrefix == X86Local::XD) |
| insnContext = IC_VEX_L_XD; |
| else if ((VEX_WPrefix == X86Local::VEX_W1 || |
| VEX_WPrefix == X86Local::VEX_W1X) && OpPrefix == X86Local::XS) |
| insnContext = IC_VEX_W_XS; |
| else if ((VEX_WPrefix == X86Local::VEX_W1 || |
| VEX_WPrefix == X86Local::VEX_W1X) && OpPrefix == X86Local::XD) |
| insnContext = IC_VEX_W_XD; |
| else if ((VEX_WPrefix == X86Local::VEX_W1 || |
| VEX_WPrefix == X86Local::VEX_W1X) && OpPrefix == X86Local::PS) |
| insnContext = IC_VEX_W; |
| else if (HasVEX_LPrefix && OpPrefix == X86Local::PS) |
| insnContext = IC_VEX_L; |
| else if (OpPrefix == X86Local::XD) |
| insnContext = IC_VEX_XD; |
| else if (OpPrefix == X86Local::XS) |
| insnContext = IC_VEX_XS; |
| else if (OpPrefix == X86Local::PS) |
| insnContext = IC_VEX; |
| else { |
| errs() << "Instruction does not use a prefix: " << Name << "\n"; |
| llvm_unreachable("Invalid prefix"); |
| } |
| } else if (Is64Bit || HasREX_WPrefix || AdSize == X86Local::AdSize64) { |
| if (HasREX_WPrefix && (OpSize == X86Local::OpSize16 || OpPrefix == X86Local::PD)) |
| insnContext = IC_64BIT_REXW_OPSIZE; |
| else if (HasREX_WPrefix && AdSize == X86Local::AdSize32) |
| insnContext = IC_64BIT_REXW_ADSIZE; |
| else if (OpSize == X86Local::OpSize16 && OpPrefix == X86Local::XD) |
| insnContext = IC_64BIT_XD_OPSIZE; |
| else if (OpSize == X86Local::OpSize16 && OpPrefix == X86Local::XS) |
| insnContext = IC_64BIT_XS_OPSIZE; |
| else if (AdSize == X86Local::AdSize32 && OpPrefix == X86Local::PD) |
| insnContext = IC_64BIT_OPSIZE_ADSIZE; |
| else if (OpSize == X86Local::OpSize16 && AdSize == X86Local::AdSize32) |
| insnContext = IC_64BIT_OPSIZE_ADSIZE; |
| else if (OpSize == X86Local::OpSize16 || OpPrefix == X86Local::PD) |
| insnContext = IC_64BIT_OPSIZE; |
| else if (AdSize == X86Local::AdSize32) |
| insnContext = IC_64BIT_ADSIZE; |
| else if (HasREX_WPrefix && OpPrefix == X86Local::XS) |
| insnContext = IC_64BIT_REXW_XS; |
| else if (HasREX_WPrefix && OpPrefix == X86Local::XD) |
| insnContext = IC_64BIT_REXW_XD; |
| else if (OpPrefix == X86Local::XD) |
| insnContext = IC_64BIT_XD; |
| else if (OpPrefix == X86Local::XS) |
| insnContext = IC_64BIT_XS; |
| else if (HasREX_WPrefix) |
| insnContext = IC_64BIT_REXW; |
| else |
| insnContext = IC_64BIT; |
| } else { |
| if (OpSize == X86Local::OpSize16 && OpPrefix == X86Local::XD) |
| insnContext = IC_XD_OPSIZE; |
| else if (OpSize == X86Local::OpSize16 && OpPrefix == X86Local::XS) |
| insnContext = IC_XS_OPSIZE; |
| else if (AdSize == X86Local::AdSize16 && OpPrefix == X86Local::XD) |
| insnContext = IC_XD_ADSIZE; |
| else if (AdSize == X86Local::AdSize16 && OpPrefix == X86Local::XS) |
| insnContext = IC_XS_ADSIZE; |
| else if (AdSize == X86Local::AdSize16 && OpPrefix == X86Local::PD) |
| insnContext = IC_OPSIZE_ADSIZE; |
| else if (OpSize == X86Local::OpSize16 && AdSize == X86Local::AdSize16) |
| insnContext = IC_OPSIZE_ADSIZE; |
| else if (OpSize == X86Local::OpSize16 || OpPrefix == X86Local::PD) |
| insnContext = IC_OPSIZE; |
| else if (AdSize == X86Local::AdSize16) |
| insnContext = IC_ADSIZE; |
| else if (OpPrefix == X86Local::XD) |
| insnContext = IC_XD; |
| else if (OpPrefix == X86Local::XS) |
| insnContext = IC_XS; |
| else |
| insnContext = IC; |
| } |
| |
| return insnContext; |
| } |
| |
| void RecognizableInstr::adjustOperandEncoding(OperandEncoding &encoding) { |
| // The scaling factor for AVX512 compressed displacement encoding is an |
| // instruction attribute. Adjust the ModRM encoding type to include the |
| // scale for compressed displacement. |
| if ((encoding != ENCODING_RM && encoding != ENCODING_VSIB) ||CD8_Scale == 0) |
| return; |
| encoding = (OperandEncoding)(encoding + Log2_32(CD8_Scale)); |
| assert(((encoding >= ENCODING_RM && encoding <= ENCODING_RM_CD64) || |
| (encoding >= ENCODING_VSIB && encoding <= ENCODING_VSIB_CD64)) && |
| "Invalid CDisp scaling"); |
| } |
| |
| void RecognizableInstr::handleOperand(bool optional, unsigned &operandIndex, |
| unsigned &physicalOperandIndex, |
| unsigned numPhysicalOperands, |
| const unsigned *operandMapping, |
| OperandEncoding (*encodingFromString) |
| (const std::string&, |
| uint8_t OpSize)) { |
| if (optional) { |
| if (physicalOperandIndex >= numPhysicalOperands) |
| return; |
| } else { |
| assert(physicalOperandIndex < numPhysicalOperands); |
| } |
| |
| while (operandMapping[operandIndex] != operandIndex) { |
| Spec->operands[operandIndex].encoding = ENCODING_DUP; |
| Spec->operands[operandIndex].type = |
| (OperandType)(TYPE_DUP0 + operandMapping[operandIndex]); |
| ++operandIndex; |
| } |
| |
| StringRef typeName = (*Operands)[operandIndex].Rec->getName(); |
| |
| OperandEncoding encoding = encodingFromString(typeName, OpSize); |
| // Adjust the encoding type for an operand based on the instruction. |
| adjustOperandEncoding(encoding); |
| Spec->operands[operandIndex].encoding = encoding; |
| Spec->operands[operandIndex].type = typeFromString(typeName, |
| HasREX_WPrefix, OpSize); |
| |
| ++operandIndex; |
| ++physicalOperandIndex; |
| } |
| |
| void RecognizableInstr::emitInstructionSpecifier() { |
| Spec->name = Name; |
| |
| Spec->insnContext = insnContext(); |
| |
| const std::vector<CGIOperandList::OperandInfo> &OperandList = *Operands; |
| |
| unsigned numOperands = OperandList.size(); |
| unsigned numPhysicalOperands = 0; |
| |
| // operandMapping maps from operands in OperandList to their originals. |
| // If operandMapping[i] != i, then the entry is a duplicate. |
| unsigned operandMapping[X86_MAX_OPERANDS]; |
| assert(numOperands <= X86_MAX_OPERANDS && "X86_MAX_OPERANDS is not large enough"); |
| |
| for (unsigned operandIndex = 0; operandIndex < numOperands; ++operandIndex) { |
| if (!OperandList[operandIndex].Constraints.empty()) { |
| const CGIOperandList::ConstraintInfo &Constraint = |
| OperandList[operandIndex].Constraints[0]; |
| if (Constraint.isTied()) { |
| operandMapping[operandIndex] = operandIndex; |
| operandMapping[Constraint.getTiedOperand()] = operandIndex; |
| } else { |
| ++numPhysicalOperands; |
| operandMapping[operandIndex] = operandIndex; |
| } |
| } else { |
| ++numPhysicalOperands; |
| operandMapping[operandIndex] = operandIndex; |
| } |
| } |
| |
| #define HANDLE_OPERAND(class) \ |
| handleOperand(false, \ |
| operandIndex, \ |
| physicalOperandIndex, \ |
| numPhysicalOperands, \ |
| operandMapping, \ |
| class##EncodingFromString); |
| |
| #define HANDLE_OPTIONAL(class) \ |
| handleOperand(true, \ |
| operandIndex, \ |
| physicalOperandIndex, \ |
| numPhysicalOperands, \ |
| operandMapping, \ |
| class##EncodingFromString); |
| |
| // operandIndex should always be < numOperands |
| unsigned operandIndex = 0; |
| // physicalOperandIndex should always be < numPhysicalOperands |
| unsigned physicalOperandIndex = 0; |
| |
| #ifndef NDEBUG |
| // Given the set of prefix bits, how many additional operands does the |
| // instruction have? |
| unsigned additionalOperands = 0; |
| if (HasVEX_4V) |
| ++additionalOperands; |
| if (HasEVEX_K) |
| ++additionalOperands; |
| #endif |
| |
| switch (Form) { |
| default: llvm_unreachable("Unhandled form"); |
| case X86Local::RawFrmSrc: |
| HANDLE_OPERAND(relocation); |
| return; |
| case X86Local::RawFrmDst: |
| HANDLE_OPERAND(relocation); |
| return; |
| case X86Local::RawFrmDstSrc: |
| HANDLE_OPERAND(relocation); |
| HANDLE_OPERAND(relocation); |
| return; |
| case X86Local::RawFrm: |
| // Operand 1 (optional) is an address or immediate. |
| assert(numPhysicalOperands <= 1 && |
| "Unexpected number of operands for RawFrm"); |
| HANDLE_OPTIONAL(relocation) |
| break; |
| case X86Local::RawFrmMemOffs: |
| // Operand 1 is an address. |
| HANDLE_OPERAND(relocation); |
| break; |
| case X86Local::AddRegFrm: |
| // Operand 1 is added to the opcode. |
| // Operand 2 (optional) is an address. |
| assert(numPhysicalOperands >= 1 && numPhysicalOperands <= 2 && |
| "Unexpected number of operands for AddRegFrm"); |
| HANDLE_OPERAND(opcodeModifier) |
| HANDLE_OPTIONAL(relocation) |
| break; |
| case X86Local::MRMDestReg: |
| // Operand 1 is a register operand in the R/M field. |
| // - In AVX512 there may be a mask operand here - |
| // Operand 2 is a register operand in the Reg/Opcode field. |
| // - In AVX, there is a register operand in the VEX.vvvv field here - |
| // Operand 3 (optional) is an immediate. |
| assert(numPhysicalOperands >= 2 + additionalOperands && |
| numPhysicalOperands <= 3 + additionalOperands && |
| "Unexpected number of operands for MRMDestRegFrm"); |
| |
| HANDLE_OPERAND(rmRegister) |
| if (HasEVEX_K) |
| HANDLE_OPERAND(writemaskRegister) |
| |
| if (HasVEX_4V) |
| // FIXME: In AVX, the register below becomes the one encoded |
| // in ModRMVEX and the one above the one in the VEX.VVVV field |
| HANDLE_OPERAND(vvvvRegister) |
| |
| HANDLE_OPERAND(roRegister) |
| HANDLE_OPTIONAL(immediate) |
| break; |
| case X86Local::MRMDestMem: |
| // Operand 1 is a memory operand (possibly SIB-extended) |
| // Operand 2 is a register operand in the Reg/Opcode field. |
| // - In AVX, there is a register operand in the VEX.vvvv field here - |
| // Operand 3 (optional) is an immediate. |
| assert(numPhysicalOperands >= 2 + additionalOperands && |
| numPhysicalOperands <= 3 + additionalOperands && |
| "Unexpected number of operands for MRMDestMemFrm with VEX_4V"); |
| |
| HANDLE_OPERAND(memory) |
| |
| if (HasEVEX_K) |
| HANDLE_OPERAND(writemaskRegister) |
| |
| if (HasVEX_4V) |
| // FIXME: In AVX, the register below becomes the one encoded |
| // in ModRMVEX and the one above the one in the VEX.VVVV field |
| HANDLE_OPERAND(vvvvRegister) |
| |
| HANDLE_OPERAND(roRegister) |
| HANDLE_OPTIONAL(immediate) |
| break; |
| case X86Local::MRMSrcReg: |
| // Operand 1 is a register operand in the Reg/Opcode field. |
| // Operand 2 is a register operand in the R/M field. |
| // - In AVX, there is a register operand in the VEX.vvvv field here - |
| // Operand 3 (optional) is an immediate. |
| // Operand 4 (optional) is an immediate. |
| |
| assert(numPhysicalOperands >= 2 + additionalOperands && |
| numPhysicalOperands <= 4 + additionalOperands && |
| "Unexpected number of operands for MRMSrcRegFrm"); |
| |
| HANDLE_OPERAND(roRegister) |
| |
| if (HasEVEX_K) |
| HANDLE_OPERAND(writemaskRegister) |
| |
| if (HasVEX_4V) |
| // FIXME: In AVX, the register below becomes the one encoded |
| // in ModRMVEX and the one above the one in the VEX.VVVV field |
| HANDLE_OPERAND(vvvvRegister) |
| |
| HANDLE_OPERAND(rmRegister) |
| HANDLE_OPTIONAL(immediate) |
| HANDLE_OPTIONAL(immediate) // above might be a register in 7:4 |
| break; |
| case X86Local::MRMSrcReg4VOp3: |
| assert(numPhysicalOperands == 3 && |
| "Unexpected number of operands for MRMSrcReg4VOp3Frm"); |
| HANDLE_OPERAND(roRegister) |
| HANDLE_OPERAND(rmRegister) |
| HANDLE_OPERAND(vvvvRegister) |
| break; |
| case X86Local::MRMSrcRegOp4: |
| assert(numPhysicalOperands >= 4 && numPhysicalOperands <= 5 && |
| "Unexpected number of operands for MRMSrcRegOp4Frm"); |
| HANDLE_OPERAND(roRegister) |
| HANDLE_OPERAND(vvvvRegister) |
| HANDLE_OPERAND(immediate) // Register in imm[7:4] |
| HANDLE_OPERAND(rmRegister) |
| HANDLE_OPTIONAL(immediate) |
| break; |
| case X86Local::MRMSrcMem: |
| // Operand 1 is a register operand in the Reg/Opcode field. |
| // Operand 2 is a memory operand (possibly SIB-extended) |
| // - In AVX, there is a register operand in the VEX.vvvv field here - |
| // Operand 3 (optional) is an immediate. |
| |
| assert(numPhysicalOperands >= 2 + additionalOperands && |
| numPhysicalOperands <= 4 + additionalOperands && |
| "Unexpected number of operands for MRMSrcMemFrm"); |
| |
| HANDLE_OPERAND(roRegister) |
| |
| if (HasEVEX_K) |
| HANDLE_OPERAND(writemaskRegister) |
| |
| if (HasVEX_4V) |
| // FIXME: In AVX, the register below becomes the one encoded |
| // in ModRMVEX and the one above the one in the VEX.VVVV field |
| HANDLE_OPERAND(vvvvRegister) |
| |
| HANDLE_OPERAND(memory) |
| HANDLE_OPTIONAL(immediate) |
| HANDLE_OPTIONAL(immediate) // above might be a register in 7:4 |
| break; |
| case X86Local::MRMSrcMem4VOp3: |
| assert(numPhysicalOperands == 3 && |
| "Unexpected number of operands for MRMSrcMem4VOp3Frm"); |
| HANDLE_OPERAND(roRegister) |
| HANDLE_OPERAND(memory) |
| HANDLE_OPERAND(vvvvRegister) |
| break; |
| case X86Local::MRMSrcMemOp4: |
| assert(numPhysicalOperands >= 4 && numPhysicalOperands <= 5 && |
| "Unexpected number of operands for MRMSrcMemOp4Frm"); |
| HANDLE_OPERAND(roRegister) |
| HANDLE_OPERAND(vvvvRegister) |
| HANDLE_OPERAND(immediate) // Register in imm[7:4] |
| HANDLE_OPERAND(memory) |
| HANDLE_OPTIONAL(immediate) |
| break; |
| case X86Local::MRMXr: |
| case X86Local::MRM0r: |
| case X86Local::MRM1r: |
| case X86Local::MRM2r: |
| case X86Local::MRM3r: |
| case X86Local::MRM4r: |
| case X86Local::MRM5r: |
| case X86Local::MRM6r: |
| case X86Local::MRM7r: |
| // Operand 1 is a register operand in the R/M field. |
| // Operand 2 (optional) is an immediate or relocation. |
| // Operand 3 (optional) is an immediate. |
| assert(numPhysicalOperands >= 0 + additionalOperands && |
| numPhysicalOperands <= 3 + additionalOperands && |
| "Unexpected number of operands for MRMnr"); |
| |
| if (HasVEX_4V) |
| HANDLE_OPERAND(vvvvRegister) |
| |
| if (HasEVEX_K) |
| HANDLE_OPERAND(writemaskRegister) |
| HANDLE_OPTIONAL(rmRegister) |
| HANDLE_OPTIONAL(relocation) |
| HANDLE_OPTIONAL(immediate) |
| break; |
| case X86Local::MRMXm: |
| case X86Local::MRM0m: |
| case X86Local::MRM1m: |
| case X86Local::MRM2m: |
| case X86Local::MRM3m: |
| case X86Local::MRM4m: |
| case X86Local::MRM5m: |
| case X86Local::MRM6m: |
| case X86Local::MRM7m: |
| // Operand 1 is a memory operand (possibly SIB-extended) |
| // Operand 2 (optional) is an immediate or relocation. |
| assert(numPhysicalOperands >= 1 + additionalOperands && |
| numPhysicalOperands <= 2 + additionalOperands && |
| "Unexpected number of operands for MRMnm"); |
| |
| if (HasVEX_4V) |
| HANDLE_OPERAND(vvvvRegister) |
| if (HasEVEX_K) |
| HANDLE_OPERAND(writemaskRegister) |
| HANDLE_OPERAND(memory) |
| HANDLE_OPTIONAL(relocation) |
| break; |
| case X86Local::RawFrmImm8: |
| // operand 1 is a 16-bit immediate |
| // operand 2 is an 8-bit immediate |
| assert(numPhysicalOperands == 2 && |
| "Unexpected number of operands for X86Local::RawFrmImm8"); |
| HANDLE_OPERAND(immediate) |
| HANDLE_OPERAND(immediate) |
| break; |
| case X86Local::RawFrmImm16: |
| // operand 1 is a 16-bit immediate |
| // operand 2 is a 16-bit immediate |
| HANDLE_OPERAND(immediate) |
| HANDLE_OPERAND(immediate) |
| break; |
| #define MAP(from, to) case X86Local::MRM_##from: |
| X86_INSTR_MRM_MAPPING |
| #undef MAP |
| HANDLE_OPTIONAL(relocation) |
| break; |
| } |
| |
| #undef HANDLE_OPERAND |
| #undef HANDLE_OPTIONAL |
| } |
| |
| void RecognizableInstr::emitDecodePath(DisassemblerTables &tables) const { |
| // Special cases where the LLVM tables are not complete |
| |
| #define MAP(from, to) \ |
| case X86Local::MRM_##from: |
| |
| llvm::Optional<OpcodeType> opcodeType; |
| switch (OpMap) { |
| default: llvm_unreachable("Invalid map!"); |
| case X86Local::OB: opcodeType = ONEBYTE; break; |
| case X86Local::TB: opcodeType = TWOBYTE; break; |
| case X86Local::T8: opcodeType = THREEBYTE_38; break; |
| case X86Local::TA: opcodeType = THREEBYTE_3A; break; |
| case X86Local::XOP8: opcodeType = XOP8_MAP; break; |
| case X86Local::XOP9: opcodeType = XOP9_MAP; break; |
| case X86Local::XOPA: opcodeType = XOPA_MAP; break; |
| case X86Local::ThreeDNow: opcodeType = THREEDNOW_MAP; break; |
| } |
| |
| std::unique_ptr<ModRMFilter> filter; |
| switch (Form) { |
| default: llvm_unreachable("Invalid form!"); |
| case X86Local::Pseudo: llvm_unreachable("Pseudo should not be emitted!"); |
| case X86Local::RawFrm: |
| case X86Local::AddRegFrm: |
| case X86Local::RawFrmMemOffs: |
| case X86Local::RawFrmSrc: |
| case X86Local::RawFrmDst: |
| case X86Local::RawFrmDstSrc: |
| case X86Local::RawFrmImm8: |
| case X86Local::RawFrmImm16: |
| filter = llvm::make_unique<DumbFilter>(); |
| break; |
| case X86Local::MRMDestReg: |
| case X86Local::MRMSrcReg: |
| case X86Local::MRMSrcReg4VOp3: |
| case X86Local::MRMSrcRegOp4: |
| case X86Local::MRMXr: |
| filter = llvm::make_unique<ModFilter>(true); |
| break; |
| case X86Local::MRMDestMem: |
| case X86Local::MRMSrcMem: |
| case X86Local::MRMSrcMem4VOp3: |
| case X86Local::MRMSrcMemOp4: |
| case X86Local::MRMXm: |
| filter = llvm::make_unique<ModFilter>(false); |
| break; |
| case X86Local::MRM0r: case X86Local::MRM1r: |
| case X86Local::MRM2r: case X86Local::MRM3r: |
| case X86Local::MRM4r: case X86Local::MRM5r: |
| case X86Local::MRM6r: case X86Local::MRM7r: |
| filter = llvm::make_unique<ExtendedFilter>(true, Form - X86Local::MRM0r); |
| break; |
| case X86Local::MRM0m: case X86Local::MRM1m: |
| case X86Local::MRM2m: case X86Local::MRM3m: |
| case X86Local::MRM4m: case X86Local::MRM5m: |
| case X86Local::MRM6m: case X86Local::MRM7m: |
| filter = llvm::make_unique<ExtendedFilter>(false, Form - X86Local::MRM0m); |
| break; |
| X86_INSTR_MRM_MAPPING |
| filter = llvm::make_unique<ExactFilter>(0xC0 + Form - X86Local::MRM_C0); |
| break; |
| } // switch (Form) |
| |
| uint8_t opcodeToSet = Opcode; |
| |
| unsigned AddressSize = 0; |
| switch (AdSize) { |
| case X86Local::AdSize16: AddressSize = 16; break; |
| case X86Local::AdSize32: AddressSize = 32; break; |
| case X86Local::AdSize64: AddressSize = 64; break; |
| } |
| |
| assert(opcodeType && "Opcode type not set"); |
| assert(filter && "Filter not set"); |
| |
| if (Form == X86Local::AddRegFrm) { |
| assert(((opcodeToSet & 7) == 0) && |
| "ADDREG_FRM opcode not aligned"); |
| |
| uint8_t currentOpcode; |
| |
| for (currentOpcode = opcodeToSet; |
| currentOpcode < opcodeToSet + 8; |
| ++currentOpcode) |
| tables.setTableFields(*opcodeType, insnContext(), currentOpcode, *filter, |
| UID, Is32Bit, OpPrefix == 0, |
| IgnoresVEX_L || EncodeRC, |
| VEX_WPrefix == X86Local::VEX_WIG, AddressSize); |
| } else { |
| tables.setTableFields(*opcodeType, insnContext(), opcodeToSet, *filter, UID, |
| Is32Bit, OpPrefix == 0, IgnoresVEX_L || EncodeRC, |
| VEX_WPrefix == X86Local::VEX_WIG, AddressSize); |
| } |
| |
| #undef MAP |
| } |
| |
| #define TYPE(str, type) if (s == str) return type; |
| OperandType RecognizableInstr::typeFromString(const std::string &s, |
| bool hasREX_WPrefix, |
| uint8_t OpSize) { |
| if(hasREX_WPrefix) { |
| // For instructions with a REX_W prefix, a declared 32-bit register encoding |
| // is special. |
| TYPE("GR32", TYPE_R32) |
| } |
| if(OpSize == X86Local::OpSize16) { |
| // For OpSize16 instructions, a declared 16-bit register or |
| // immediate encoding is special. |
| TYPE("GR16", TYPE_Rv) |
| } else if(OpSize == X86Local::OpSize32) { |
| // For OpSize32 instructions, a declared 32-bit register or |
| // immediate encoding is special. |
| TYPE("GR32", TYPE_Rv) |
| } |
| TYPE("i16mem", TYPE_M) |
| TYPE("i16imm", TYPE_IMM) |
| TYPE("i16i8imm", TYPE_IMM) |
| TYPE("GR16", TYPE_R16) |
| TYPE("i32mem", TYPE_M) |
| TYPE("i32imm", TYPE_IMM) |
| TYPE("i32i8imm", TYPE_IMM) |
| TYPE("GR32", TYPE_R32) |
| TYPE("GR32orGR64", TYPE_R32) |
| TYPE("i64mem", TYPE_M) |
| TYPE("i64i32imm", TYPE_IMM) |
| TYPE("i64i8imm", TYPE_IMM) |
| TYPE("GR64", TYPE_R64) |
| TYPE("i8mem", TYPE_M) |
| TYPE("i8imm", TYPE_IMM) |
| TYPE("u8imm", TYPE_UIMM8) |
| TYPE("i32u8imm", TYPE_UIMM8) |
| TYPE("GR8", TYPE_R8) |
| TYPE("VR128", TYPE_XMM) |
| TYPE("VR128X", TYPE_XMM) |
| TYPE("f128mem", TYPE_M) |
| TYPE("f256mem", TYPE_M) |
| TYPE("f512mem", TYPE_M) |
| TYPE("FR128", TYPE_XMM) |
| TYPE("FR64", TYPE_XMM) |
| TYPE("FR64X", TYPE_XMM) |
| TYPE("f64mem", TYPE_M) |
| TYPE("sdmem", TYPE_M) |
| TYPE("FR32", TYPE_XMM) |
| TYPE("FR32X", TYPE_XMM) |
| TYPE("f32mem", TYPE_M) |
| TYPE("ssmem", TYPE_M) |
| TYPE("RST", TYPE_ST) |
| TYPE("RSTi", TYPE_ST) |
| TYPE("i128mem", TYPE_M) |
| TYPE("i256mem", TYPE_M) |
| TYPE("i512mem", TYPE_M) |
| TYPE("i64i32imm_pcrel", TYPE_REL) |
| TYPE("i16imm_pcrel", TYPE_REL) |
| TYPE("i32imm_pcrel", TYPE_REL) |
| TYPE("SSECC", TYPE_IMM3) |
| TYPE("XOPCC", TYPE_IMM3) |
| TYPE("AVXCC", TYPE_IMM5) |
| TYPE("AVX512ICC", TYPE_AVX512ICC) |
| TYPE("AVX512RC", TYPE_IMM) |
| TYPE("brtarget32", TYPE_REL) |
| TYPE("brtarget16", TYPE_REL) |
| TYPE("brtarget8", TYPE_REL) |
| TYPE("f80mem", TYPE_M) |
| TYPE("lea64_32mem", TYPE_M) |
| TYPE("lea64mem", TYPE_M) |
| TYPE("VR64", TYPE_MM64) |
| TYPE("i64imm", TYPE_IMM) |
| TYPE("anymem", TYPE_M) |
| TYPE("opaquemem", TYPE_M) |
| TYPE("SEGMENT_REG", TYPE_SEGMENTREG) |
| TYPE("DEBUG_REG", TYPE_DEBUGREG) |
| TYPE("CONTROL_REG", TYPE_CONTROLREG) |
| TYPE("srcidx8", TYPE_SRCIDX) |
| TYPE("srcidx16", TYPE_SRCIDX) |
| TYPE("srcidx32", TYPE_SRCIDX) |
| TYPE("srcidx64", TYPE_SRCIDX) |
| TYPE("dstidx8", TYPE_DSTIDX) |
| TYPE("dstidx16", TYPE_DSTIDX) |
| TYPE("dstidx32", TYPE_DSTIDX) |
| TYPE("dstidx64", TYPE_DSTIDX) |
| TYPE("offset16_8", TYPE_MOFFS) |
| TYPE("offset16_16", TYPE_MOFFS) |
| TYPE("offset16_32", TYPE_MOFFS) |
| TYPE("offset32_8", TYPE_MOFFS) |
| TYPE("offset32_16", TYPE_MOFFS) |
| TYPE("offset32_32", TYPE_MOFFS) |
| TYPE("offset32_64", TYPE_MOFFS) |
| TYPE("offset64_8", TYPE_MOFFS) |
| TYPE("offset64_16", TYPE_MOFFS) |
| TYPE("offset64_32", TYPE_MOFFS) |
| TYPE("offset64_64", TYPE_MOFFS) |
| TYPE("VR256", TYPE_YMM) |
| TYPE("VR256X", TYPE_YMM) |
| TYPE("VR512", TYPE_ZMM) |
| TYPE("VK1", TYPE_VK) |
| TYPE("VK1WM", TYPE_VK) |
| TYPE("VK2", TYPE_VK) |
| TYPE("VK2WM", TYPE_VK) |
| TYPE("VK4", TYPE_VK) |
| TYPE("VK4WM", TYPE_VK) |
| TYPE("VK8", TYPE_VK) |
| TYPE("VK8WM", TYPE_VK) |
| TYPE("VK16", TYPE_VK) |
| TYPE("VK16WM", TYPE_VK) |
| TYPE("VK32", TYPE_VK) |
| TYPE("VK32WM", TYPE_VK) |
| TYPE("VK64", TYPE_VK) |
| TYPE("VK64WM", TYPE_VK) |
| TYPE("vx64mem", TYPE_MVSIBX) |
| TYPE("vx128mem", TYPE_MVSIBX) |
| TYPE("vx256mem", TYPE_MVSIBX) |
| TYPE("vy128mem", TYPE_MVSIBY) |
| TYPE("vy256mem", TYPE_MVSIBY) |
| TYPE("vx64xmem", TYPE_MVSIBX) |
| TYPE("vx128xmem", TYPE_MVSIBX) |
| TYPE("vx256xmem", TYPE_MVSIBX) |
| TYPE("vy128xmem", TYPE_MVSIBY) |
| TYPE("vy256xmem", TYPE_MVSIBY) |
| TYPE("vy512xmem", TYPE_MVSIBY) |
| TYPE("vz256mem", TYPE_MVSIBZ) |
| TYPE("vz512mem", TYPE_MVSIBZ) |
| TYPE("BNDR", TYPE_BNDR) |
| errs() << "Unhandled type string " << s << "\n"; |
| llvm_unreachable("Unhandled type string"); |
| } |
| #undef TYPE |
| |
| #define ENCODING(str, encoding) if (s == str) return encoding; |
| OperandEncoding |
| RecognizableInstr::immediateEncodingFromString(const std::string &s, |
| uint8_t OpSize) { |
| if(OpSize != X86Local::OpSize16) { |
| // For instructions without an OpSize prefix, a declared 16-bit register or |
| // immediate encoding is special. |
| ENCODING("i16imm", ENCODING_IW) |
| } |
| ENCODING("i32i8imm", ENCODING_IB) |
| ENCODING("SSECC", ENCODING_IB) |
| ENCODING("XOPCC", ENCODING_IB) |
| ENCODING("AVXCC", ENCODING_IB) |
| ENCODING("AVX512ICC", ENCODING_IB) |
| ENCODING("AVX512RC", ENCODING_IRC) |
| ENCODING("i16imm", ENCODING_Iv) |
| ENCODING("i16i8imm", ENCODING_IB) |
| ENCODING("i32imm", ENCODING_Iv) |
| ENCODING("i64i32imm", ENCODING_ID) |
| ENCODING("i64i8imm", ENCODING_IB) |
| ENCODING("i8imm", ENCODING_IB) |
| ENCODING("u8imm", ENCODING_IB) |
| ENCODING("i32u8imm", ENCODING_IB) |
| // This is not a typo. Instructions like BLENDVPD put |
| // register IDs in 8-bit immediates nowadays. |
| ENCODING("FR32", ENCODING_IB) |
| ENCODING("FR64", ENCODING_IB) |
| ENCODING("FR128", ENCODING_IB) |
| ENCODING("VR128", ENCODING_IB) |
| ENCODING("VR256", ENCODING_IB) |
| ENCODING("FR32X", ENCODING_IB) |
| ENCODING("FR64X", ENCODING_IB) |
| ENCODING("VR128X", ENCODING_IB) |
| ENCODING("VR256X", ENCODING_IB) |
| ENCODING("VR512", ENCODING_IB) |
| errs() << "Unhandled immediate encoding " << s << "\n"; |
| llvm_unreachable("Unhandled immediate encoding"); |
| } |
| |
| OperandEncoding |
| RecognizableInstr::rmRegisterEncodingFromString(const std::string &s, |
| uint8_t OpSize) { |
| ENCODING("RST", ENCODING_FP) |
| ENCODING("RSTi", ENCODING_FP) |
| ENCODING("GR16", ENCODING_RM) |
| ENCODING("GR32", ENCODING_RM) |
| ENCODING("GR32orGR64", ENCODING_RM) |
| ENCODING("GR64", ENCODING_RM) |
| ENCODING("GR8", ENCODING_RM) |
| ENCODING("VR128", ENCODING_RM) |
| ENCODING("VR128X", ENCODING_RM) |
| ENCODING("FR128", ENCODING_RM) |
| ENCODING("FR64", ENCODING_RM) |
| ENCODING("FR32", ENCODING_RM) |
| ENCODING("FR64X", ENCODING_RM) |
| ENCODING("FR32X", ENCODING_RM) |
| ENCODING("VR64", ENCODING_RM) |
| ENCODING("VR256", ENCODING_RM) |
| ENCODING("VR256X", ENCODING_RM) |
| ENCODING("VR512", ENCODING_RM) |
| ENCODING("VK1", ENCODING_RM) |
| ENCODING("VK2", ENCODING_RM) |
| ENCODING("VK4", ENCODING_RM) |
| ENCODING("VK8", ENCODING_RM) |
| ENCODING("VK16", ENCODING_RM) |
| ENCODING("VK32", ENCODING_RM) |
| ENCODING("VK64", ENCODING_RM) |
| ENCODING("BNDR", ENCODING_RM) |
| errs() << "Unhandled R/M register encoding " << s << "\n"; |
| llvm_unreachable("Unhandled R/M register encoding"); |
| } |
| |
| OperandEncoding |
| RecognizableInstr::roRegisterEncodingFromString(const std::string &s, |
| uint8_t OpSize) { |
| ENCODING("GR16", ENCODING_REG) |
| ENCODING("GR32", ENCODING_REG) |
| ENCODING("GR32orGR64", ENCODING_REG) |
| ENCODING("GR64", ENCODING_REG) |
| ENCODING("GR8", ENCODING_REG) |
| ENCODING("VR128", ENCODING_REG) |
| ENCODING("FR128", ENCODING_REG) |
| ENCODING("FR64", ENCODING_REG) |
| ENCODING("FR32", ENCODING_REG) |
| ENCODING("VR64", ENCODING_REG) |
| ENCODING("SEGMENT_REG", ENCODING_REG) |
| ENCODING("DEBUG_REG", ENCODING_REG) |
| ENCODING("CONTROL_REG", ENCODING_REG) |
| ENCODING("VR256", ENCODING_REG) |
| ENCODING("VR256X", ENCODING_REG) |
| ENCODING("VR128X", ENCODING_REG) |
| ENCODING("FR64X", ENCODING_REG) |
| ENCODING("FR32X", ENCODING_REG) |
| ENCODING("VR512", ENCODING_REG) |
| ENCODING("VK1", ENCODING_REG) |
| ENCODING("VK2", ENCODING_REG) |
| ENCODING("VK4", ENCODING_REG) |
| ENCODING("VK8", ENCODING_REG) |
| ENCODING("VK16", ENCODING_REG) |
| ENCODING("VK32", ENCODING_REG) |
| ENCODING("VK64", ENCODING_REG) |
| ENCODING("VK1WM", ENCODING_REG) |
| ENCODING("VK2WM", ENCODING_REG) |
| ENCODING("VK4WM", ENCODING_REG) |
| ENCODING("VK8WM", ENCODING_REG) |
| ENCODING("VK16WM", ENCODING_REG) |
| ENCODING("VK32WM", ENCODING_REG) |
| ENCODING("VK64WM", ENCODING_REG) |
| ENCODING("BNDR", ENCODING_REG) |
| errs() << "Unhandled reg/opcode register encoding " << s << "\n"; |
| llvm_unreachable("Unhandled reg/opcode register encoding"); |
| } |
| |
| OperandEncoding |
| RecognizableInstr::vvvvRegisterEncodingFromString(const std::string &s, |
| uint8_t OpSize) { |
| ENCODING("GR32", ENCODING_VVVV) |
| ENCODING("GR64", ENCODING_VVVV) |
| ENCODING("FR32", ENCODING_VVVV) |
| ENCODING("FR128", ENCODING_VVVV) |
| ENCODING("FR64", ENCODING_VVVV) |
| ENCODING("VR128", ENCODING_VVVV) |
| ENCODING("VR256", ENCODING_VVVV) |
| ENCODING("FR32X", ENCODING_VVVV) |
| ENCODING("FR64X", ENCODING_VVVV) |
| ENCODING("VR128X", ENCODING_VVVV) |
| ENCODING("VR256X", ENCODING_VVVV) |
| ENCODING("VR512", ENCODING_VVVV) |
| ENCODING("VK1", ENCODING_VVVV) |
| ENCODING("VK2", ENCODING_VVVV) |
| ENCODING("VK4", ENCODING_VVVV) |
| ENCODING("VK8", ENCODING_VVVV) |
| ENCODING("VK16", ENCODING_VVVV) |
| ENCODING("VK32", ENCODING_VVVV) |
| ENCODING("VK64", ENCODING_VVVV) |
| errs() << "Unhandled VEX.vvvv register encoding " << s << "\n"; |
| llvm_unreachable("Unhandled VEX.vvvv register encoding"); |
| } |
| |
| OperandEncoding |
| RecognizableInstr::writemaskRegisterEncodingFromString(const std::string &s, |
| uint8_t OpSize) { |
| ENCODING("VK1WM", ENCODING_WRITEMASK) |
| ENCODING("VK2WM", ENCODING_WRITEMASK) |
| ENCODING("VK4WM", ENCODING_WRITEMASK) |
| ENCODING("VK8WM", ENCODING_WRITEMASK) |
| ENCODING("VK16WM", ENCODING_WRITEMASK) |
| ENCODING("VK32WM", ENCODING_WRITEMASK) |
| ENCODING("VK64WM", ENCODING_WRITEMASK) |
| errs() << "Unhandled mask register encoding " << s << "\n"; |
| llvm_unreachable("Unhandled mask register encoding"); |
| } |
| |
| OperandEncoding |
| RecognizableInstr::memoryEncodingFromString(const std::string &s, |
| uint8_t OpSize) { |
| ENCODING("i16mem", ENCODING_RM) |
| ENCODING("i32mem", ENCODING_RM) |
| ENCODING("i64mem", ENCODING_RM) |
| ENCODING("i8mem", ENCODING_RM) |
| ENCODING("ssmem", ENCODING_RM) |
| ENCODING("sdmem", ENCODING_RM) |
| ENCODING("f128mem", ENCODING_RM) |
| ENCODING("f256mem", ENCODING_RM) |
| ENCODING("f512mem", ENCODING_RM) |
| ENCODING("f64mem", ENCODING_RM) |
| ENCODING("f32mem", ENCODING_RM) |
| ENCODING("i128mem", ENCODING_RM) |
| ENCODING("i256mem", ENCODING_RM) |
| ENCODING("i512mem", ENCODING_RM) |
| ENCODING("f80mem", ENCODING_RM) |
| ENCODING("lea64_32mem", ENCODING_RM) |
| ENCODING("lea64mem", ENCODING_RM) |
| ENCODING("anymem", ENCODING_RM) |
| ENCODING("opaquemem", ENCODING_RM) |
| ENCODING("vx64mem", ENCODING_VSIB) |
| ENCODING("vx128mem", ENCODING_VSIB) |
| ENCODING("vx256mem", ENCODING_VSIB) |
| ENCODING("vy128mem", ENCODING_VSIB) |
| ENCODING("vy256mem", ENCODING_VSIB) |
| ENCODING("vx64xmem", ENCODING_VSIB) |
| ENCODING("vx128xmem", ENCODING_VSIB) |
| ENCODING("vx256xmem", ENCODING_VSIB) |
| ENCODING("vy128xmem", ENCODING_VSIB) |
| ENCODING("vy256xmem", ENCODING_VSIB) |
| ENCODING("vy512xmem", ENCODING_VSIB) |
| ENCODING("vz256mem", ENCODING_VSIB) |
| ENCODING("vz512mem", ENCODING_VSIB) |
| errs() << "Unhandled memory encoding " << s << "\n"; |
| llvm_unreachable("Unhandled memory encoding"); |
| } |
| |
| OperandEncoding |
| RecognizableInstr::relocationEncodingFromString(const std::string &s, |
| uint8_t OpSize) { |
| if(OpSize != X86Local::OpSize16) { |
| // For instructions without an OpSize prefix, a declared 16-bit register or |
| // immediate encoding is special. |
| ENCODING("i16imm", ENCODING_IW) |
| } |
| ENCODING("i16imm", ENCODING_Iv) |
| ENCODING("i16i8imm", ENCODING_IB) |
| ENCODING("i32imm", ENCODING_Iv) |
| ENCODING("i32i8imm", ENCODING_IB) |
| ENCODING("i64i32imm", ENCODING_ID) |
| ENCODING("i64i8imm", ENCODING_IB) |
| ENCODING("i8imm", ENCODING_IB) |
| ENCODING("u8imm", ENCODING_IB) |
| ENCODING("i32u8imm", ENCODING_IB) |
| ENCODING("i64i32imm_pcrel", ENCODING_ID) |
| ENCODING("i16imm_pcrel", ENCODING_IW) |
| ENCODING("i32imm_pcrel", ENCODING_ID) |
| ENCODING("brtarget32", ENCODING_ID) |
| ENCODING("brtarget16", ENCODING_IW) |
| ENCODING("brtarget8", ENCODING_IB) |
| ENCODING("i64imm", ENCODING_IO) |
| ENCODING("offset16_8", ENCODING_Ia) |
| ENCODING("offset16_16", ENCODING_Ia) |
| ENCODING("offset16_32", ENCODING_Ia) |
| ENCODING("offset32_8", ENCODING_Ia) |
| ENCODING("offset32_16", ENCODING_Ia) |
| ENCODING("offset32_32", ENCODING_Ia) |
| ENCODING("offset32_64", ENCODING_Ia) |
| ENCODING("offset64_8", ENCODING_Ia) |
| ENCODING("offset64_16", ENCODING_Ia) |
| ENCODING("offset64_32", ENCODING_Ia) |
| ENCODING("offset64_64", ENCODING_Ia) |
| ENCODING("srcidx8", ENCODING_SI) |
| ENCODING("srcidx16", ENCODING_SI) |
| ENCODING("srcidx32", ENCODING_SI) |
| ENCODING("srcidx64", ENCODING_SI) |
| ENCODING("dstidx8", ENCODING_DI) |
| ENCODING("dstidx16", ENCODING_DI) |
| ENCODING("dstidx32", ENCODING_DI) |
| ENCODING("dstidx64", ENCODING_DI) |
| errs() << "Unhandled relocation encoding " << s << "\n"; |
| llvm_unreachable("Unhandled relocation encoding"); |
| } |
| |
| OperandEncoding |
| RecognizableInstr::opcodeModifierEncodingFromString(const std::string &s, |
| uint8_t OpSize) { |
| ENCODING("GR32", ENCODING_Rv) |
| ENCODING("GR64", ENCODING_RO) |
| ENCODING("GR16", ENCODING_Rv) |
| ENCODING("GR8", ENCODING_RB) |
| errs() << "Unhandled opcode modifier encoding " << s << "\n"; |
| llvm_unreachable("Unhandled opcode modifier encoding"); |
| } |
| #undef ENCODING |
