| 1 | //===----------------------- InstructionView.h ------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | /// \file |
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| 9 | /// |
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| 10 | /// This file defines the main interface for Views that examine and reference |
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| 11 | /// a sequence of machine instructions. |
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| 12 | /// |
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| 13 | //===----------------------------------------------------------------------===// |
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| 14 | |
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| 15 | #ifndef LLVM_TOOLS_LLVM_MCA_INSTRUCTIONVIEW_H |
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| 16 | #define LLVM_TOOLS_LLVM_MCA_INSTRUCTIONVIEW_H |
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| 17 | |
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| 18 | #include "llvm/MCA/View.h" |
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| 19 | #include "llvm/Support/JSON.h" |
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| 20 | |
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| 21 | namespace llvm { |
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| 22 | class MCInstPrinter; |
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| 23 | |
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| 24 | namespace mca { |
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| 25 | |
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| 26 | // The base class for views that deal with individual machine instructions. |
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| 27 | class InstructionView : public View { |
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| 28 | const llvm::MCSubtargetInfo &STI; |
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| 29 | llvm::MCInstPrinter &MCIP; |
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| 30 | llvm::ArrayRef<llvm::MCInst> Source; |
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| 31 | |
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| 32 | mutable std::string InstructionString; |
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| 33 | mutable raw_string_ostream InstrStream; |
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| 34 | |
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| 35 | public: |
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| 36 | void printView(llvm::raw_ostream &) const override {} |
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| 37 | InstructionView(const llvm::MCSubtargetInfo &STI, |
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| 38 | llvm::MCInstPrinter &Printer, llvm::ArrayRef<llvm::MCInst> S) |
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| 39 | : STI(STI), MCIP(Printer), Source(S), InstrStream(InstructionString) {} |
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| 40 | |
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| 41 | virtual ~InstructionView(); |
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| 42 | |
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| 43 | StringRef getNameAsString() const override { return "Instructions" ; } |
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| 44 | |
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| 45 | // Return a reference to a string representing a given machine instruction. |
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| 46 | // The result should be used or copied before the next call to |
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| 47 | // printInstructionString() as it will overwrite the previous result. |
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| 48 | StringRef printInstructionString(const llvm::MCInst &MCI) const; |
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| 49 | const llvm::MCSubtargetInfo &getSubTargetInfo() const { return STI; } |
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| 50 | |
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| 51 | llvm::MCInstPrinter &getInstPrinter() const { return MCIP; } |
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| 52 | llvm::ArrayRef<llvm::MCInst> getSource() const { return Source; } |
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| 53 | |
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| 54 | json::Value toJSON() const override; |
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| 55 | }; |
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| 56 | |
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| 57 | } // namespace mca |
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| 58 | } // namespace llvm |
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| 59 | |
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| 60 | #endif |
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| 61 | |
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