mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
//===--------------------- RetireControlUnitStatistics.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 class RetireControlUnitStatistics: a view that knows how
|
|
/// to print general statistics related to the retire control unit.
|
|
///
|
|
/// Example:
|
|
/// ========
|
|
///
|
|
/// Retire Control Unit - number of cycles where we saw N instructions retired:
|
|
/// [# retired], [# cycles]
|
|
/// 0, 9 (6.9%)
|
|
/// 1, 6 (4.6%)
|
|
/// 2, 1 (0.8%)
|
|
/// 4, 3 (2.3%)
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_TOOLS_LLVM_MCA_RETIRECONTROLUNITSTATISTICS_H
|
|
#define LLVM_TOOLS_LLVM_MCA_RETIRECONTROLUNITSTATISTICS_H
|
|
|
|
#include "View.h"
|
|
#include "llvm/ADT/DenseMap.h"
|
|
#include "llvm/MC/MCSubtargetInfo.h"
|
|
|
|
namespace mca {
|
|
|
|
class RetireControlUnitStatistics : public View {
|
|
using Histogram = llvm::DenseMap<unsigned, unsigned>;
|
|
Histogram RetiredPerCycle;
|
|
|
|
unsigned NumRetired;
|
|
unsigned NumCycles;
|
|
|
|
void updateHistograms() {
|
|
RetiredPerCycle[NumRetired]++;
|
|
NumRetired = 0;
|
|
}
|
|
|
|
public:
|
|
RetireControlUnitStatistics() : NumRetired(0), NumCycles(0) {}
|
|
|
|
void onInstructionEvent(const HWInstructionEvent &Event) override;
|
|
|
|
void onCycleBegin() override { NumCycles++; }
|
|
|
|
void onCycleEnd() override { updateHistograms(); }
|
|
|
|
void printView(llvm::raw_ostream &OS) const override;
|
|
};
|
|
} // namespace mca
|
|
|
|
#endif
|