1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <gtest/gtest.h> 18 #include <util.h> 19 20 TEST(benchmark, memory_align) { 21 std::vector<char> buf(100); 22 for (size_t alignment = 1; alignment <= 32; alignment *= 2) { 23 for (size_t or_mask = 0; or_mask < alignment; ++or_mask) { 24 uintptr_t aligned_ptr = reinterpret_cast<uintptr_t>(GetAlignedMemory(buf.data(), alignment, 25 or_mask)); 26 ASSERT_EQ(aligned_ptr % alignment, or_mask); 27 ASSERT_EQ(aligned_ptr & alignment, alignment); 28 } 29 } 30 } 31 32 TEST(benchmark, ptr_align) { 33 std::vector<char> buf; 34 for (size_t alignment = 1; alignment <= 2048; alignment *= 2) { 35 uintptr_t aligned_ptr = reinterpret_cast<uintptr_t>(GetAlignedPtr(&buf, alignment, 100)); 36 ASSERT_EQ(aligned_ptr & alignment, alignment); 37 ASSERT_EQ(aligned_ptr & (alignment - 1), 0u); 38 } 39 } 40
