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1//===----------------------- InstructionView.h ------------------*- 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-exception6//7//===----------------------------------------------------------------------===//8/// \file9///10/// This file defines the main interface for Views that examine and reference11/// a sequence of machine instructions.12///13//===----------------------------------------------------------------------===//14 15#ifndef LLVM_TOOLS_LLVM_MCA_INSTRUCTIONVIEW_H16#define LLVM_TOOLS_LLVM_MCA_INSTRUCTIONVIEW_H17 18#include "llvm/MCA/View.h"19#include "llvm/Support/JSON.h"20 21namespace llvm {22class MCInstPrinter;23 24namespace mca {25 26// The base class for views that deal with individual machine instructions.27class InstructionView : public View {28 const llvm::MCSubtargetInfo &STI;29 llvm::MCInstPrinter &MCIP;30 llvm::ArrayRef<llvm::MCInst> Source;31 32 mutable std::string InstructionString;33 mutable raw_string_ostream InstrStream;34 35public:36 void printView(llvm::raw_ostream &) const override {}37 InstructionView(const llvm::MCSubtargetInfo &STI,38 llvm::MCInstPrinter &Printer, llvm::ArrayRef<llvm::MCInst> S)39 : STI(STI), MCIP(Printer), Source(S), InstrStream(InstructionString) {}40 41 ~InstructionView() override;42 43 StringRef getNameAsString() const override { return "Instructions"; }44 45 // Return a reference to a string representing a given machine instruction.46 // The result should be used or copied before the next call to47 // printInstructionString() as it will overwrite the previous result.48 StringRef printInstructionString(const llvm::MCInst &MCI) const;49 const llvm::MCSubtargetInfo &getSubTargetInfo() const { return STI; }50 51 llvm::MCInstPrinter &getInstPrinter() const { return MCIP; }52 llvm::ArrayRef<llvm::MCInst> getSource() const { return Source; }53 54 json::Value toJSON() const override;55};56 57} // namespace mca58} // namespace llvm59 60#endif61