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2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
//===-- CodeTemplate.cpp ----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "CodeTemplate.h"
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namespace llvm {
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namespace exegesis {
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CodeTemplate::CodeTemplate(CodeTemplate &&) = default;
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CodeTemplate &CodeTemplate::operator=(CodeTemplate &&) = default;
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InstructionTemplate::InstructionTemplate(const Instruction &Instr)
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: Instr(Instr), VariableValues(Instr.Variables.size()) {}
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InstructionTemplate::InstructionTemplate(InstructionTemplate &&) = default;
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InstructionTemplate &InstructionTemplate::
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operator=(InstructionTemplate &&) = default;
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InstructionTemplate::InstructionTemplate(const InstructionTemplate &) = default;
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InstructionTemplate &InstructionTemplate::
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operator=(const InstructionTemplate &) = default;
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unsigned InstructionTemplate::getOpcode() const {
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return Instr.Description->getOpcode();
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}
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llvm::MCOperand &InstructionTemplate::getValueFor(const Variable &Var) {
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return VariableValues[Var.getIndex()];
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}
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const llvm::MCOperand &
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InstructionTemplate::getValueFor(const Variable &Var) const {
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return VariableValues[Var.getIndex()];
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}
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llvm::MCOperand &InstructionTemplate::getValueFor(const Operand &Op) {
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return getValueFor(Instr.Variables[Op.getVariableIndex()]);
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}
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const llvm::MCOperand &
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InstructionTemplate::getValueFor(const Operand &Op) const {
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return getValueFor(Instr.Variables[Op.getVariableIndex()]);
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}
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bool InstructionTemplate::hasImmediateVariables() const {
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return llvm::any_of(Instr.Variables, [this](const Variable &Var) {
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return Instr.getPrimaryOperand(Var).isImmediate();
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});
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}
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llvm::MCInst InstructionTemplate::build() const {
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llvm::MCInst Result;
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Result.setOpcode(Instr.Description->Opcode);
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for (const auto &Op : Instr.Operands)
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if (Op.isExplicit())
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Result.addOperand(getValueFor(Op));
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return Result;
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}
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bool isEnumValue(ExecutionMode Execution) {
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return llvm::isPowerOf2_32(static_cast<uint32_t>(Execution));
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}
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llvm::StringRef getName(ExecutionMode Bit) {
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assert(isEnumValue(Bit) && "Bit must be a power of two");
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switch (Bit) {
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case ExecutionMode::UNKNOWN:
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return "UNKNOWN";
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case ExecutionMode::ALWAYS_SERIAL_IMPLICIT_REGS_ALIAS:
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return "ALWAYS_SERIAL_IMPLICIT_REGS_ALIAS";
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case ExecutionMode::ALWAYS_SERIAL_TIED_REGS_ALIAS:
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return "ALWAYS_SERIAL_TIED_REGS_ALIAS";
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case ExecutionMode::SERIAL_VIA_MEMORY_INSTR:
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return "SERIAL_VIA_MEMORY_INSTR";
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case ExecutionMode::SERIAL_VIA_EXPLICIT_REGS:
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return "SERIAL_VIA_EXPLICIT_REGS";
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case ExecutionMode::SERIAL_VIA_NON_MEMORY_INSTR:
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return "SERIAL_VIA_NON_MEMORY_INSTR";
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case ExecutionMode::ALWAYS_PARALLEL_MISSING_USE_OR_DEF:
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return "ALWAYS_PARALLEL_MISSING_USE_OR_DEF";
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case ExecutionMode::PARALLEL_VIA_EXPLICIT_REGS:
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return "PARALLEL_VIA_EXPLICIT_REGS";
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}
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llvm_unreachable("Missing enum case");
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}
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llvm::ArrayRef<ExecutionMode> getAllExecutionBits() {
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static const ExecutionMode kAllExecutionModeBits[] = {
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ExecutionMode::ALWAYS_SERIAL_IMPLICIT_REGS_ALIAS,
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ExecutionMode::ALWAYS_SERIAL_TIED_REGS_ALIAS,
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ExecutionMode::SERIAL_VIA_MEMORY_INSTR,
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ExecutionMode::SERIAL_VIA_EXPLICIT_REGS,
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ExecutionMode::SERIAL_VIA_NON_MEMORY_INSTR,
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ExecutionMode::ALWAYS_PARALLEL_MISSING_USE_OR_DEF,
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ExecutionMode::PARALLEL_VIA_EXPLICIT_REGS,
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};
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return llvm::makeArrayRef(kAllExecutionModeBits);
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}
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llvm::SmallVector<ExecutionMode, 4>
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getExecutionModeBits(ExecutionMode Execution) {
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llvm::SmallVector<ExecutionMode, 4> Result;
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for (const auto Bit : getAllExecutionBits())
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if ((Execution & Bit) == Bit)
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Result.push_back(Bit);
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return Result;
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}
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} // namespace exegesis
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} // namespace llvm
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