//===---------------------- FetchStage.h ------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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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 Fetch stage of an instruction pipeline. Its sole
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/// purpose in life is to produce instructions for the rest of the pipeline.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_MCA_FETCH_STAGE_H
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#define LLVM_TOOLS_LLVM_MCA_FETCH_STAGE_H
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#include "InstrBuilder.h"
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#include "SourceMgr.h"
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#include "Stage.h"
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#include <map>
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namespace mca {
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class FetchStage : public Stage {
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using InstMap = std::map<unsigned, std::unique_ptr<Instruction>>;
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InstMap Instructions;
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InstrBuilder &IB;
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SourceMgr &SM;
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public:
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FetchStage(InstrBuilder &IB, SourceMgr &SM) : IB(IB), SM(SM) {}
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FetchStage(const FetchStage &Other) = delete;
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FetchStage &operator=(const FetchStage &Other) = delete;
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bool hasWorkToComplete() const override final;
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bool execute(InstRef &IR) override final;
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void postExecute() override final;
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void cycleEnd() override final;
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};
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} // namespace mca
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#endif // LLVM_TOOLS_LLVM_MCA_FETCH_STAGE_H
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