| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/memory/aligned_memory.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| #define EXPECT_ALIGNED(ptr, align) \ |
| EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(ptr) & (align - 1)) |
| |
| namespace { |
| |
| using base::AlignedMemory; |
| |
| TEST(AlignedMemoryTest, StaticAlignment) { |
| static AlignedMemory<8, 8> raw8; |
| static AlignedMemory<8, 16> raw16; |
| static AlignedMemory<8, 256> raw256; |
| static AlignedMemory<8, 4096> raw4096; |
| |
| EXPECT_EQ(8u, ALIGNOF(raw8)); |
| EXPECT_EQ(16u, ALIGNOF(raw16)); |
| EXPECT_EQ(256u, ALIGNOF(raw256)); |
| EXPECT_EQ(4096u, ALIGNOF(raw4096)); |
| |
| EXPECT_ALIGNED(raw8.void_data(), 8); |
| EXPECT_ALIGNED(raw16.void_data(), 16); |
| EXPECT_ALIGNED(raw256.void_data(), 256); |
| EXPECT_ALIGNED(raw4096.void_data(), 4096); |
| } |
| |
| TEST(AlignedMemoryTest, StackAlignment) { |
| AlignedMemory<8, 8> raw8; |
| AlignedMemory<8, 16> raw16; |
| AlignedMemory<8, 128> raw128; |
| |
| EXPECT_EQ(8u, ALIGNOF(raw8)); |
| EXPECT_EQ(16u, ALIGNOF(raw16)); |
| EXPECT_EQ(128u, ALIGNOF(raw128)); |
| |
| EXPECT_ALIGNED(raw8.void_data(), 8); |
| EXPECT_ALIGNED(raw16.void_data(), 16); |
| |
| // TODO(ios): __attribute__((aligned(X))) with X >= 128 does not works on |
| // the stack when building for arm64 on iOS, http://crbug.com/349003 |
| #if !(defined(OS_IOS) && defined(ARCH_CPU_ARM64)) |
| EXPECT_ALIGNED(raw128.void_data(), 128); |
| |
| // NaCl x86-64 compiler emits non-validating instructions for >128 |
| // bytes alignment. |
| // http://www.chromium.org/nativeclient/design-documents/nacl-sfi-model-on-x86-64-systems |
| // TODO(hamaji): Ideally, NaCl compiler for x86-64 should workaround |
| // this limitation and this #if should be removed. |
| // https://code.google.com/p/nativeclient/issues/detail?id=3463 |
| #if !(defined(OS_NACL) && defined(ARCH_CPU_X86_64)) |
| AlignedMemory<8, 256> raw256; |
| EXPECT_EQ(256u, ALIGNOF(raw256)); |
| EXPECT_ALIGNED(raw256.void_data(), 256); |
| |
| // TODO(ios): This test hits an armv7 bug in clang. crbug.com/138066 |
| #if !(defined(OS_IOS) && defined(ARCH_CPU_ARM_FAMILY)) |
| AlignedMemory<8, 4096> raw4096; |
| EXPECT_EQ(4096u, ALIGNOF(raw4096)); |
| EXPECT_ALIGNED(raw4096.void_data(), 4096); |
| #endif // !(defined(OS_IOS) && defined(ARCH_CPU_ARM_FAMILY)) |
| #endif // !(defined(OS_NACL) && defined(ARCH_CPU_X86_64)) |
| #endif // !(defined(OS_IOS) && defined(ARCH_CPU_ARM64)) |
| } |
| |
| TEST(AlignedMemoryTest, DynamicAllocation) { |
| void* p = base::AlignedAlloc(8, 8); |
| EXPECT_TRUE(p); |
| EXPECT_ALIGNED(p, 8); |
| base::AlignedFree(p); |
| |
| p = base::AlignedAlloc(8, 16); |
| EXPECT_TRUE(p); |
| EXPECT_ALIGNED(p, 16); |
| base::AlignedFree(p); |
| |
| p = base::AlignedAlloc(8, 256); |
| EXPECT_TRUE(p); |
| EXPECT_ALIGNED(p, 256); |
| base::AlignedFree(p); |
| |
| p = base::AlignedAlloc(8, 4096); |
| EXPECT_TRUE(p); |
| EXPECT_ALIGNED(p, 4096); |
| base::AlignedFree(p); |
| } |
| |
| TEST(AlignedMemoryTest, ScopedDynamicAllocation) { |
| scoped_ptr<float, base::AlignedFreeDeleter> p( |
| static_cast<float*>(base::AlignedAlloc(8, 8))); |
| EXPECT_TRUE(p.get()); |
| EXPECT_ALIGNED(p.get(), 8); |
| } |
| |
| } // namespace |