68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
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//===----------------------- InstrucionView.h -----------------------------*- 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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/// \file
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///
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/// This file defines the main interface for Views that examine and reference
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/// a sequence of machine instructions.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_MCA_INSTRUCTIONVIEW_H
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#define LLVM_TOOLS_LLVM_MCA_INSTRUCTIONVIEW_H
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#include "Views/View.h"
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#include "llvm/MC/MCInstPrinter.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Support/JSON.h"
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namespace llvm {
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namespace mca {
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// The base class for views that deal with individual machine instructions.
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class InstructionView : public View {
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const llvm::MCSubtargetInfo &STI;
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llvm::MCInstPrinter &MCIP;
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llvm::ArrayRef<llvm::MCInst> Source;
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StringRef MCPU;
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mutable std::string InstructionString;
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mutable raw_string_ostream InstrStream;
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public:
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void printView(llvm::raw_ostream &) const override {}
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InstructionView(const llvm::MCSubtargetInfo &STI,
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llvm::MCInstPrinter &Printer,
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llvm::ArrayRef<llvm::MCInst> S,
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StringRef MCPU = StringRef())
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: STI(STI), MCIP(Printer), Source(S), MCPU(MCPU),
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InstrStream(InstructionString) {}
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virtual ~InstructionView() = default;
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StringRef getNameAsString() const override {
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return "Instructions and CPU resources";
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}
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// Return a reference to a string representing a given machine instruction.
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// The result should be used or copied before the next call to
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// printInstructionString() as it will overwrite the previous result.
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StringRef printInstructionString(const llvm::MCInst &MCI) const;
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const llvm::MCSubtargetInfo &getSubTargetInfo() const { return STI; }
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llvm::MCInstPrinter &getInstPrinter() const { return MCIP; }
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llvm::ArrayRef<llvm::MCInst> getSource() const { return Source; }
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json::Value toJSON() const override;
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virtual void printViewJSON(llvm::raw_ostream &OS) override {
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json::Value JV = toJSON();
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OS << formatv("{0:2}", JV) << "\n";
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}
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};
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} // namespace mca
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} // namespace llvm
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#endif
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