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Issue 218953003: Remove all uses of GG_LONGLONG and GG_ULONGLONG. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: fix win? Created 6 years, 8 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include <stdio.h> 5 #include <stdio.h>
6 #include <stdlib.h> 6 #include <stdlib.h>
7 #include <algorithm> // for min() 7 #include <algorithm> // for min()
8
8 #include "base/atomicops.h" 9 #include "base/atomicops.h"
9 #include "testing/gtest/include/gtest/gtest.h" 10 #include "testing/gtest/include/gtest/gtest.h"
10 11
11 // Number of bits in a size_t. 12 // Number of bits in a size_t.
12 static const int kSizeBits = 8 * sizeof(size_t); 13 static const int kSizeBits = 8 * sizeof(size_t);
13 // The maximum size of a size_t. 14 // The maximum size of a size_t.
14 static const size_t kMaxSize = ~static_cast<size_t>(0); 15 static const size_t kMaxSize = ~static_cast<size_t>(0);
15 // Maximum positive size of a size_t if it were signed. 16 // Maximum positive size of a size_t if it were signed.
16 static const size_t kMaxSignedSize = ((size_t(1) << (kSizeBits-1)) - 1); 17 static const size_t kMaxSignedSize = ((size_t(1) << (kSizeBits-1)) - 1);
17 // An allocation size which is not too big to be reasonable. 18 // An allocation size which is not too big to be reasonable.
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74 if (size == power-1) 75 if (size == power-1)
75 return power; 76 return power;
76 77
77 assert(size == power); 78 assert(size == power);
78 return power+1; 79 return power+1;
79 } else { 80 } else {
80 return -1; 81 return -1;
81 } 82 }
82 } 83 }
83 84
84 #define GG_ULONGLONG(x) static_cast<uint64>(x)
85
86 template <class AtomicType> 85 template <class AtomicType>
87 static void TestAtomicIncrement() { 86 static void TestAtomicIncrement() {
88 // For now, we just test single threaded execution 87 // For now, we just test single threaded execution
89 88
90 // use a guard value to make sure the NoBarrier_AtomicIncrement doesn't go 89 // use a guard value to make sure the NoBarrier_AtomicIncrement doesn't go
91 // outside the expected address bounds. This is in particular to 90 // outside the expected address bounds. This is in particular to
92 // test that some future change to the asm code doesn't cause the 91 // test that some future change to the asm code doesn't cause the
93 // 32-bit NoBarrier_AtomicIncrement to do the wrong thing on 64-bit machines. 92 // 32-bit NoBarrier_AtomicIncrement to do the wrong thing on 64-bit machines.
94 struct { 93 struct {
95 AtomicType prev_word; 94 AtomicType prev_word;
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157 156
158 template <class AtomicType> 157 template <class AtomicType>
159 static void TestCompareAndSwap() { 158 static void TestCompareAndSwap() {
160 AtomicType value = 0; 159 AtomicType value = 0;
161 AtomicType prev = base::subtle::NoBarrier_CompareAndSwap(&value, 0, 1); 160 AtomicType prev = base::subtle::NoBarrier_CompareAndSwap(&value, 0, 1);
162 EXPECT_EQ(1, value); 161 EXPECT_EQ(1, value);
163 EXPECT_EQ(0, prev); 162 EXPECT_EQ(0, prev);
164 163
165 // Use test value that has non-zero bits in both halves, more for testing 164 // Use test value that has non-zero bits in both halves, more for testing
166 // 64-bit implementation on 32-bit platforms. 165 // 64-bit implementation on 32-bit platforms.
167 const AtomicType k_test_val = (GG_ULONGLONG(1) << 166 const AtomicType k_test_val = (static_cast<uint64_t>(1) <<
168 (NUM_BITS(AtomicType) - 2)) + 11; 167 (NUM_BITS(AtomicType) - 2)) + 11;
169 value = k_test_val; 168 value = k_test_val;
170 prev = base::subtle::NoBarrier_CompareAndSwap(&value, 0, 5); 169 prev = base::subtle::NoBarrier_CompareAndSwap(&value, 0, 5);
171 EXPECT_EQ(k_test_val, value); 170 EXPECT_EQ(k_test_val, value);
172 EXPECT_EQ(k_test_val, prev); 171 EXPECT_EQ(k_test_val, prev);
173 172
174 value = k_test_val; 173 value = k_test_val;
175 prev = base::subtle::NoBarrier_CompareAndSwap(&value, k_test_val, 5); 174 prev = base::subtle::NoBarrier_CompareAndSwap(&value, k_test_val, 5);
176 EXPECT_EQ(5, value); 175 EXPECT_EQ(5, value);
177 EXPECT_EQ(k_test_val, prev); 176 EXPECT_EQ(k_test_val, prev);
178 } 177 }
179 178
180 179
181 template <class AtomicType> 180 template <class AtomicType>
182 static void TestAtomicExchange() { 181 static void TestAtomicExchange() {
183 AtomicType value = 0; 182 AtomicType value = 0;
184 AtomicType new_value = base::subtle::NoBarrier_AtomicExchange(&value, 1); 183 AtomicType new_value = base::subtle::NoBarrier_AtomicExchange(&value, 1);
185 EXPECT_EQ(1, value); 184 EXPECT_EQ(1, value);
186 EXPECT_EQ(0, new_value); 185 EXPECT_EQ(0, new_value);
187 186
188 // Use test value that has non-zero bits in both halves, more for testing 187 // Use test value that has non-zero bits in both halves, more for testing
189 // 64-bit implementation on 32-bit platforms. 188 // 64-bit implementation on 32-bit platforms.
190 const AtomicType k_test_val = (GG_ULONGLONG(1) << 189 const AtomicType k_test_val = (static_cast<uint64_t>(1) <<
191 (NUM_BITS(AtomicType) - 2)) + 11; 190 (NUM_BITS(AtomicType) - 2)) + 11;
192 value = k_test_val; 191 value = k_test_val;
193 new_value = base::subtle::NoBarrier_AtomicExchange(&value, k_test_val); 192 new_value = base::subtle::NoBarrier_AtomicExchange(&value, k_test_val);
194 EXPECT_EQ(k_test_val, value); 193 EXPECT_EQ(k_test_val, value);
195 EXPECT_EQ(k_test_val, new_value); 194 EXPECT_EQ(k_test_val, new_value);
196 195
197 value = k_test_val; 196 value = k_test_val;
198 new_value = base::subtle::NoBarrier_AtomicExchange(&value, 5); 197 new_value = base::subtle::NoBarrier_AtomicExchange(&value, 5);
199 EXPECT_EQ(5, value); 198 EXPECT_EQ(5, value);
200 EXPECT_EQ(k_test_val, new_value); 199 EXPECT_EQ(k_test_val, new_value);
201 } 200 }
202 201
203 202
204 template <class AtomicType> 203 template <class AtomicType>
205 static void TestAtomicIncrementBounds() { 204 static void TestAtomicIncrementBounds() {
206 // Test increment at the half-width boundary of the atomic type. 205 // Test increment at the half-width boundary of the atomic type.
207 // It is primarily for testing at the 32-bit boundary for 64-bit atomic type. 206 // It is primarily for testing at the 32-bit boundary for 64-bit atomic type.
208 AtomicType test_val = GG_ULONGLONG(1) << (NUM_BITS(AtomicType) / 2); 207 AtomicType test_val = static_cast<uint64_t>(1) << (NUM_BITS(AtomicType) / 2);
209 AtomicType value = test_val - 1; 208 AtomicType value = test_val - 1;
210 AtomicType new_value = base::subtle::NoBarrier_AtomicIncrement(&value, 1); 209 AtomicType new_value = base::subtle::NoBarrier_AtomicIncrement(&value, 1);
211 EXPECT_EQ(test_val, value); 210 EXPECT_EQ(test_val, value);
212 EXPECT_EQ(value, new_value); 211 EXPECT_EQ(value, new_value);
213 212
214 base::subtle::NoBarrier_AtomicIncrement(&value, -1); 213 base::subtle::NoBarrier_AtomicIncrement(&value, -1);
215 EXPECT_EQ(test_val - 1, value); 214 EXPECT_EQ(test_val - 1, value);
216 } 215 }
217 216
218 // This is a simple sanity check that values are correct. Not testing 217 // This is a simple sanity check that values are correct. Not testing
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512 } 511 }
513 } 512 }
514 513
515 #endif 514 #endif
516 515
517 516
518 int main(int argc, char** argv) { 517 int main(int argc, char** argv) {
519 testing::InitGoogleTest(&argc, argv); 518 testing::InitGoogleTest(&argc, argv);
520 return RUN_ALL_TESTS(); 519 return RUN_ALL_TESTS();
521 } 520 }
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