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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
//===- llvm/unittest/Support/ParallelTest.cpp -----------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// Parallel.h unit tests.
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///
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Parallel.h"
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#include "gtest/gtest.h"
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#include <array>
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#include <random>
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uint32_t array[1024 * 1024];
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using namespace llvm;
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// Tests below are hanging up on mingw. Investigating.
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#if !defined(__MINGW32__)
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TEST(Parallel, sort) {
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std::mt19937 randEngine;
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std::uniform_int_distribution<uint32_t> dist;
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for (auto &i : array)
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i = dist(randEngine);
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sort(parallel::par, std::begin(array), std::end(array));
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ASSERT_TRUE(std::is_sorted(std::begin(array), std::end(array)));
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}
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TEST(Parallel, parallel_for) {
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// We need to test the case with a TaskSize > 1. We are white-box testing
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// here. The TaskSize is calculated as (End - Begin) / 1024 at the time of
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// writing.
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uint32_t range[2050];
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std::fill(range, range + 2050, 1);
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for_each_n(parallel::par, 0, 2049, [&range](size_t I) { ++range[I]; });
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uint32_t expected[2049];
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std::fill(expected, expected + 2049, 2);
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ASSERT_TRUE(std::equal(range, range + 2049, expected));
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// Check that we don't write past the end of the requested range.
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ASSERT_EQ(range[2049], 1u);
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}
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#endif
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