unittests/Support/Threading.cpp

   1 //===- unittests/Threading.cpp - Thread tests -----------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "llvm/Support/Threading.h"
  11 #include "llvm/Support/thread.h"
  12 #include "gtest/gtest.h"
  13
  14 using namespace llvm;
  15
  16 namespace {
  17
  18 TEST(Threading, PhysicalConcurrency) {
  19   auto Num = heavyweight_hardware_concurrency();
  20   // Since Num is unsigned this will also catch us trying to
  21   // return -1.
  22   ASSERT_LE(Num, thread::hardware_concurrency());
  23 }
  24
  25 } // end anon namespace