| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <gtest/gtest.h> |
| #include <util.h> |
| |
| TEST(benchmark, memory_align) { |
| std::vector<char> buf(100); |
| for (size_t alignment = 1; alignment <= 32; alignment *= 2) { |
| for (size_t or_mask = 0; or_mask < alignment; ++or_mask) { |
| uintptr_t aligned_ptr = reinterpret_cast<uintptr_t>(GetAlignedMemory(buf.data(), alignment, |
| or_mask)); |
| ASSERT_EQ(aligned_ptr % alignment, or_mask); |
| ASSERT_EQ(aligned_ptr & alignment, alignment); |
| } |
| } |
| } |
| |
| TEST(benchmark, ptr_align) { |
| std::vector<char> buf; |
| for (size_t alignment = 1; alignment <= 2048; alignment *= 2) { |
| uintptr_t aligned_ptr = reinterpret_cast<uintptr_t>(GetAlignedPtr(&buf, alignment, 100)); |
| ASSERT_EQ(aligned_ptr & alignment, alignment); |
| ASSERT_EQ(aligned_ptr & (alignment - 1), 0u); |
| } |
| } |