llvm-project/llvm/unittests/Support/Threading.cpp

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//===- unittests/Threading.cpp - Thread tests -----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Threading.h"
#include "llvm/Support/thread.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(Threading, PhysicalConcurrency) {
auto Num = heavyweight_hardware_concurrency();
// Since Num is unsigned this will also catch us trying to
// return -1.
ASSERT_LE(Num, thread::hardware_concurrency());
}
} // end anon namespace