llvm-project/llvm/tools/llvm-exegesis/lib/UopsBenchmarkRunner.cpp
Bill Wendling c55cf4afa9 Revert "Remove redundant "std::move"s in return statements"
The build failed with

  error: call to deleted constructor of 'llvm::Error'

errors.

This reverts commit 1c2241a7936bf85aa68aef94bd40c3ba77d8ddf2.
2020-02-10 07:07:40 -08:00

47 lines
1.7 KiB
C++

//===-- UopsBenchmarkRunner.cpp ---------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "UopsBenchmarkRunner.h"
#include "Target.h"
namespace llvm {
namespace exegesis {
UopsBenchmarkRunner::~UopsBenchmarkRunner() = default;
Expected<std::vector<BenchmarkMeasure>>
UopsBenchmarkRunner::runMeasurements(const FunctionExecutor &Executor) const {
std::vector<BenchmarkMeasure> Result;
const PfmCountersInfo &PCI = State.getPfmCounters();
// Uops per port.
for (const auto *IssueCounter = PCI.IssueCounters,
*IssueCounterEnd = PCI.IssueCounters + PCI.NumIssueCounters;
IssueCounter != IssueCounterEnd; ++IssueCounter) {
if (!IssueCounter->Counter)
continue;
auto ExpectedCounterValue = Executor.runAndMeasure(IssueCounter->Counter);
if (!ExpectedCounterValue)
return ExpectedCounterValue.takeError();
Result.push_back(BenchmarkMeasure::Create(IssueCounter->ProcResName,
*ExpectedCounterValue));
}
// NumMicroOps.
if (const char *const UopsCounter = PCI.UopsCounter) {
auto ExpectedCounterValue = Executor.runAndMeasure(UopsCounter);
if (!ExpectedCounterValue)
return ExpectedCounterValue.takeError();
Result.push_back(
BenchmarkMeasure::Create("NumMicroOps", *ExpectedCounterValue));
}
return std::move(Result);
}
} // namespace exegesis
} // namespace llvm