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Diffstat (limited to 'Tools/TestWebKitAPI/Tests/WTF/Consume.cpp')
-rw-r--r-- | Tools/TestWebKitAPI/Tests/WTF/Consume.cpp | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/Tools/TestWebKitAPI/Tests/WTF/Consume.cpp b/Tools/TestWebKitAPI/Tests/WTF/Consume.cpp new file mode 100644 index 000000000..e1a5d7a07 --- /dev/null +++ b/Tools/TestWebKitAPI/Tests/WTF/Consume.cpp @@ -0,0 +1,141 @@ +/* + * Copyright (C) 2016 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" + +#include <thread> +#include <wtf/Atomics.h> + +template <typename T> +NEVER_INLINE auto testConsume(const T* location) +{ + WTF::compilerFence(); // Paranoid testing. + auto ret = WTF::consumeLoad(location); + WTF::compilerFence(); // Paranoid testing. + return ret; +} + +namespace TestWebKitAPI { + +TEST(WTF, Consumei8) +{ + uint8_t i8 = 42; + auto i8_consumed = testConsume(&i8); + ASSERT_EQ(i8_consumed.value, 42u); + ASSERT_EQ(i8_consumed.dependency, 0u); +} + +TEST(WTF, Consumei16) +{ + uint16_t i16 = 42; + auto i16_consumed = testConsume(&i16); + ASSERT_EQ(i16_consumed.value, 42u); + ASSERT_EQ(i16_consumed.dependency, 0u); +} + +TEST(WTF, Consumei32) +{ + uint32_t i32 = 42; + auto i32_consumed = testConsume(&i32); + ASSERT_EQ(i32_consumed.value, 42u); + ASSERT_EQ(i32_consumed.dependency, 0u); +} + +TEST(WTF, Consumei64) +{ + uint64_t i64 = 42; + auto i64_consumed = testConsume(&i64); + ASSERT_EQ(i64_consumed.value, 42u); + ASSERT_EQ(i64_consumed.dependency, 0u); +} + +TEST(WTF, Consumef32) +{ + float f32 = 42.f; + auto f32_consumed = testConsume(&f32); + ASSERT_EQ(f32_consumed.value, 42.f); + ASSERT_EQ(f32_consumed.dependency, 0u); +} + +TEST(WTF, Consumef64) +{ + double f64 = 42.; + auto f64_consumed = testConsume(&f64); + ASSERT_EQ(f64_consumed.value, 42.); + ASSERT_EQ(f64_consumed.dependency, 0u); +} + +static int* global; + +TEST(WTF, ConsumeGlobalPtr) +{ + auto* ptr = &global; + auto ptr_consumed = testConsume(&ptr); + ASSERT_EQ(ptr_consumed.value, &global); + ASSERT_EQ(ptr_consumed.dependency, 0u); +} + +static int* globalArray[128]; + +TEST(WTF, ConsumeGlobalArrayPtr) +{ + auto* ptr = &globalArray[64]; + auto ptr_consumed = testConsume(&ptr); + ASSERT_EQ(ptr_consumed.value, &globalArray[64]); + ASSERT_EQ(ptr_consumed.dependency, 0u); +} + +TEST(WTF, ConsumeStackPtr) +{ + char* hello = nullptr; + auto* stack = &hello; + auto stack_consumed = testConsume(&stack); + ASSERT_EQ(stack_consumed.value, &hello); + ASSERT_EQ(stack_consumed.dependency, 0u); +} + +TEST(WTF, ConsumeWithThread) +{ + bool ready = false; + constexpr size_t num = 1024; + uint32_t* vec = new uint32_t[num]; + std::thread t([&]() { + for (size_t i = 0; i != num; ++i) + vec[i] = i * 2; + WTF::storeStoreFence(); + ready = true; + }); + do { + auto stack_consumed = testConsume(&ready); + if (stack_consumed.value) { + for (size_t i = 0; i != num; ++i) + ASSERT_EQ(vec[i + stack_consumed.dependency], i * 2); + break; + } + } while (true); + t.join(); + delete[] vec; +} +} |