Louis Dionne 78b4b5cccb
[libc++] Move the benchmarks under libcxx/test (#99371)
This is an intermediate and fairly mechanical step towards unifying the
benchmarks with the rest of the test suite. Moving this around requires
a few changes, notably making sure we don't throw a wrench into the
discovery process of the normal test suite. This won't be a problem
anymore once benchmarks are taken into account by the test setup out of
the box.
2024-07-31 11:18:32 -04:00

38 lines
1.2 KiB
C++

// -*- 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
//
//===----------------------------------------------------------------------===//
#ifndef BENCHMARK_UTILITIES_H
#define BENCHMARK_UTILITIES_H
#include <cassert>
#include <type_traits>
#include "benchmark/benchmark.h"
namespace UtilitiesInternal {
template <class Container>
auto HaveDataImpl(int) -> decltype((std::declval<Container&>().data(), std::true_type{}));
template <class Container>
auto HaveDataImpl(long) -> std::false_type;
template <class T>
using HasData = decltype(HaveDataImpl<T>(0));
} // namespace UtilitiesInternal
template <class Container, std::enable_if_t<UtilitiesInternal::HasData<Container>::value>* = nullptr>
void DoNotOptimizeData(Container& c) {
benchmark::DoNotOptimize(c.data());
}
template <class Container, std::enable_if_t<!UtilitiesInternal::HasData<Container>::value>* = nullptr>
void DoNotOptimizeData(Container& c) {
benchmark::DoNotOptimize(&c);
}
#endif // BENCHMARK_UTILITIES_H