author | stefank |
Tue, 04 Jul 2017 15:58:10 +0200 | |
changeset 46619 | a3919f5e8d2b |
parent 46618 | d503911aa948 |
child 46625 | edefffab74e2 |
permissions | -rw-r--r-- |
46617 | 1 |
/* |
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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#include "precompiled.hpp" |
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#include "utilities/formatBuffer.hpp" |
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#include "utilities/globalDefinitions.hpp" |
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#include "unittest.hpp" |
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#include <limits> |
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// A few arbitrarily chosen values to test the align functions on. |
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static uint64_t values[] = {1, 3, 10, 345, 1023, 1024, 1025, 23909034, INT_MAX, uint64_t(-1) / 2, uint64_t(-1) / 2 + 100, -1 }; |
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template <typename T> |
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static T max_alignment() { |
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T max = std::numeric_limits<T>::max(); |
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return max ^ (max >> 1); |
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} |
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#define log(...) SCOPED_TRACE(err_msg(__VA_ARGS__).buffer()) |
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template <typename T, typename A> |
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static void test_alignments() { |
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log("### Test: %c" SIZE_FORMAT " " UINT64_FORMAT " : %c" SIZE_FORMAT " " UINT64_FORMAT " ###\n", |
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std::numeric_limits<T>::is_signed ? 's' : 'u', sizeof(T), (uint64_t)std::numeric_limits<T>::max(), |
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std::numeric_limits<A>::is_signed ? 's' : 'u', sizeof(A), (uint64_t)std::numeric_limits<A>::max()); |
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// Test all possible alignment values that fit in type A. |
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for (A alignment = max_alignment<A>(); alignment > 0; alignment >>= 1) { |
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log("=== Alignment: " UINT64_FORMAT " ===\n", (uint64_t)alignment); |
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for (size_t i = 0; i < ARRAY_SIZE(values); i++) { |
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log("--- Value: " UINT64_FORMAT "\n", values[i]); |
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// Test align up |
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46619
a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
46618
diff
changeset
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const uint64_t up = align_up_(values[i], (uint64_t)alignment); |
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if (0 < up && up <= (uint64_t)std::numeric_limits<T>::max()) { |
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log("Testing align_up: alignment: 0x" UINT64_FORMAT_X " value: 0x" UINT64_FORMAT_X " expected: 0x" UINT64_FORMAT_X "\n", (uint64_t)alignment, values[i], up); |
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T value = T(values[i]); |
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// Check against uint64_t version |
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a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
46618
diff
changeset
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ASSERT_EQ(align_up((uint64_t)value, alignment), up); |
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// Check inline function vs macro |
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a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
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changeset
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ASSERT_EQ(align_up(value, alignment), align_up_(value, alignment)); |
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// Sanity check |
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parents:
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ASSERT_GE(align_up(value, alignment), value); |
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} |
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// Test align down |
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a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
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parents:
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const uint64_t down = align_down_(values[i], (uint64_t)alignment); |
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if (down <= (uint64_t)std::numeric_limits<T>::max()) { |
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log("Testing align_down: alignment: 0x" UINT64_FORMAT_X " value: 0x" UINT64_FORMAT_X " expected: 0x" UINT64_FORMAT_X "\n", (uint64_t)alignment, values[i], down); |
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T value = T(values[i]); |
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// Check against uint64_t version |
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8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
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ASSERT_EQ((uint64_t)align_down(value, alignment), down); |
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// Check inline function vs macro |
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a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
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changeset
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ASSERT_EQ(align_down(value, alignment), align_down_(value, alignment)); |
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// Sanity check |
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a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
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parents:
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ASSERT_LE(align_down(value, alignment), value); |
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} |
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// Test is aligned |
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8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
46618
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changeset
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const bool is = is_aligned_(values[i], (uint64_t)alignment); |
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if (values[i] <= (uint64_t)std::numeric_limits<T>::max()) { |
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log("Testing is_aligned: alignment: 0x" UINT64_FORMAT_X " value: 0x" UINT64_FORMAT_X " expected: %s\n", (uint64_t)alignment, values[i], is ? "true" : "false"); |
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T value = T(values[i]); |
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// Check against uint64_t version |
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parents:
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ASSERT_EQ(is_aligned(value, alignment), is); |
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// Check inline function vs macro |
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8178499: Remove _ptr_ and _size_ infixes from align functions
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parents:
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ASSERT_EQ(is_aligned(value, alignment), is_aligned_(value, alignment)); |
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} |
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} |
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} |
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} |
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TEST(Align, functions_and_macros) { |
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// Test the alignment functions with different type combinations. |
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test_alignments<int64_t, uint8_t>(); |
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test_alignments<int64_t, uint16_t>(); |
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test_alignments<int64_t, uint32_t>(); |
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test_alignments<int64_t, int8_t>(); |
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test_alignments<int64_t, int16_t>(); |
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test_alignments<int64_t, int32_t>(); |
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test_alignments<int64_t, int64_t>(); |
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test_alignments<uint32_t, uint8_t>(); |
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test_alignments<uint32_t, uint16_t>(); |
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test_alignments<uint32_t, uint32_t>(); |
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test_alignments<uint32_t, int8_t>(); |
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test_alignments<uint32_t, int16_t>(); |
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test_alignments<uint32_t, int32_t>(); |
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test_alignments<int32_t, uint8_t>(); |
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test_alignments<int32_t, uint16_t>(); |
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test_alignments<int32_t, int8_t>(); |
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test_alignments<int32_t, int16_t>(); |
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test_alignments<int32_t, int32_t>(); |
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test_alignments<uint16_t, uint8_t>(); |
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test_alignments<uint16_t, uint16_t>(); |
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test_alignments<uint16_t, int8_t>(); |
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test_alignments<uint16_t, int16_t>(); |
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test_alignments<int16_t, uint8_t>(); |
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test_alignments<int16_t, int8_t>(); |
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test_alignments<int16_t, int16_t>(); |
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test_alignments<uint8_t, int8_t>(); |
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test_alignments<uint8_t, uint8_t>(); |
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test_alignments<int8_t, int8_t>(); |
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} |