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