unittests/Support/Threading.cpp

   1 //===- unittests/Threading.cpp - Thread tests -----------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/Support/Threading.h"
  10 #include "llvm/Support/thread.h"
  11 #include "gtest/gtest.h"
  12
  13 using namespace llvm;
  14
  15 namespace {
  16
  17 TEST(Threading, PhysicalConcurrency) {
  18   auto Num = heavyweight_hardware_concurrency();
  19   // Since Num is unsigned this will also catch us trying to
  20   // return -1.
  21   ASSERT_LE(Num, thread::hardware_concurrency());
  22 }
  23
  24 } // end anon namespace