47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
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//===-- UopsBenchmarkRunner.cpp ---------------------------------*- 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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#include "UopsBenchmarkRunner.h"
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#include "Target.h"
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namespace llvm {
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namespace exegesis {
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UopsBenchmarkRunner::~UopsBenchmarkRunner() = default;
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Expected<std::vector<BenchmarkMeasure>>
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UopsBenchmarkRunner::runMeasurements(const FunctionExecutor &Executor) const {
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std::vector<BenchmarkMeasure> Result;
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const PfmCountersInfo &PCI = State.getPfmCounters();
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// Uops per port.
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for (const auto *IssueCounter = PCI.IssueCounters,
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*IssueCounterEnd = PCI.IssueCounters + PCI.NumIssueCounters;
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IssueCounter != IssueCounterEnd; ++IssueCounter) {
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if (!IssueCounter->Counter)
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continue;
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auto ExpectedCounterValue = Executor.runAndMeasure(IssueCounter->Counter);
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if (!ExpectedCounterValue)
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return ExpectedCounterValue.takeError();
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Result.push_back(BenchmarkMeasure::Create(IssueCounter->ProcResName,
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*ExpectedCounterValue));
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}
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// NumMicroOps.
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if (const char *const UopsCounter = PCI.UopsCounter) {
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auto ExpectedCounterValue = Executor.runAndMeasure(UopsCounter);
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if (!ExpectedCounterValue)
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return ExpectedCounterValue.takeError();
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Result.push_back(
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BenchmarkMeasure::Create("NumMicroOps", *ExpectedCounterValue));
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}
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return std::move(Result);
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}
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} // namespace exegesis
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} // namespace llvm
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