llvm/tools/llvm-mca/BackendPrinter.h

//===--------------------- BackendPrinter.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 implements class BackendPrinter.
///
/// BackendPrinter allows the customization of the performance report.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_TOOLS_LLVM_MCA_BACKENDPRINTER_H
#define LLVM_TOOLS_LLVM_MCA_BACKENDPRINTER_H

#include "Backend.h"
#include "View.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/raw_ostream.h"

#define DEBUG_TYPE "llvm-mca"

namespace mca {

/// \brief A printer class that knows how to collects statistics on the
/// code analyzed by the llvm-mca tool.
///
/// This class knows how to print out the analysis information collected
/// during the execution of the code. Internally, it delegates to other
/// classes the task of printing out timeline information as well as
/// resource pressure.
class BackendPrinter {
  Backend &B;
  llvm::SmallVector<std::unique_ptr<View>, 8> Views;

public:
  BackendPrinter(Backend &backend) : B(backend) {}

  void addView(std::unique_ptr<View> V) {
    B.addEventListener(V.get());
    Views.emplace_back(std::move(V));
  }

  void printReport(llvm::raw_ostream &OS) const;
};
} // namespace mca

#endif