| //===----------------------- View.h -----------------------------*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| /// \file |
| /// |
| /// This file defines the main interface for Views. Each view contributes a |
| /// portion of the final report generated by the tool. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_TOOLS_LLVM_MCA_VIEW_H |
| #define LLVM_TOOLS_LLVM_MCA_VIEW_H |
| |
| #include "llvm/MC/MCInstPrinter.h" |
| #include "llvm/MCA/HWEventListener.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| namespace llvm { |
| namespace mca { |
| |
| class View : public HWEventListener { |
| public: |
| virtual void printView(llvm::raw_ostream &OS) const = 0; |
| virtual ~View() = default; |
| void anchor() override; |
| }; |
| |
| // The base class for views that deal with individual machine instructions. |
| class InstructionView : public View { |
| const llvm::MCSubtargetInfo &STI; |
| llvm::MCInstPrinter &MCIP; |
| llvm::ArrayRef<llvm::MCInst> Source; |
| |
| mutable std::string InstructionString; |
| mutable raw_string_ostream InstrStream; |
| |
| protected: |
| InstructionView(const llvm::MCSubtargetInfo &STI, |
| llvm::MCInstPrinter &Printer, |
| llvm::ArrayRef<llvm::MCInst> S) |
| : STI(STI), MCIP(Printer), Source(S), InstrStream(InstructionString) {} |
| |
| virtual ~InstructionView() = default; |
| |
| // Return a reference to a string representing a given machine instruction. |
| // The result should be used or copied before the next call to |
| // printInstructionString() as it will overwrite the previous result. |
| StringRef printInstructionString(const llvm::MCInst &MCI) const; |
| |
| const llvm::MCSubtargetInfo &getSubTargetInfo() const { return STI; } |
| llvm::MCInstPrinter &getInstPrinter() const { return MCIP; } |
| llvm::ArrayRef<llvm::MCInst> getSource() const { return Source; } |
| }; |
| } // namespace mca |
| } // namespace llvm |
| |
| #endif |