438f7fc068
Summary: To get the target order correct, the benchmarks directory has been moved one level higher. Previously, it was living in the utils directory. The utils directory is a collection of utils which are to be used by the tests and implementations. However, benchmarks *use* the implementations. So, moving it out of utils helps us setup proper target level dependencies. Reviewers: gchatelet Differential Revision: https://reviews.llvm.org/D81910
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
//===-- Benchmark function -----------------------------------------------===//
|
|
//
|
|
// 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 "LibcBenchmark.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Support/Host.h"
|
|
|
|
namespace llvm {
|
|
namespace libc_benchmarks {
|
|
|
|
void checkRequirements() {
|
|
const auto &CpuInfo = benchmark::CPUInfo::Get();
|
|
if (CpuInfo.scaling_enabled)
|
|
report_fatal_error(
|
|
"CPU scaling is enabled, the benchmark real time measurements may be "
|
|
"noisy and will incur extra overhead.");
|
|
}
|
|
|
|
HostState HostState::get() {
|
|
const auto &CpuInfo = benchmark::CPUInfo::Get();
|
|
HostState H;
|
|
H.CpuFrequency = CpuInfo.cycles_per_second;
|
|
H.CpuName = llvm::sys::getHostCPUName().str();
|
|
for (const auto &BenchmarkCacheInfo : CpuInfo.caches) {
|
|
CacheInfo CI;
|
|
CI.Type = BenchmarkCacheInfo.type;
|
|
CI.Level = BenchmarkCacheInfo.level;
|
|
CI.Size = BenchmarkCacheInfo.size;
|
|
CI.NumSharing = BenchmarkCacheInfo.num_sharing;
|
|
H.Caches.push_back(std::move(CI));
|
|
}
|
|
return H;
|
|
}
|
|
|
|
} // namespace libc_benchmarks
|
|
} // namespace llvm
|