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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 // This file is meant for analyzing the code generated by the CHECK | 5 // This file is meant for analyzing the code generated by the CHECK |
6 // macros in a small executable file that's easy to disassemble. | 6 // macros in a small executable file that's easy to disassemble. |
7 | 7 |
| 8 #include "base/compiler_specific.h" |
8 #include "base/logging.h" | 9 #include "base/logging.h" |
9 | 10 |
10 // An official build shouldn't generate code to print out messages for | 11 // An official build shouldn't generate code to print out messages for |
11 // the CHECK* macros, nor should it have the strings in the | 12 // the CHECK* macros, nor should it have the strings in the |
12 // executable. | 13 // executable. It is also important that the CHECK() function collapse to the |
| 14 // same implementation as RELEASE_ASSERT(), in particular on Windows x86. |
| 15 // Historically, the stream eating caused additional unnecessary instructions. |
| 16 // See https://crbug.com/672699. |
| 17 |
| 18 #define BLINK_RELEASE_ASSERT_EQUIVALENT(assertion) \ |
| 19 (UNLIKELY(!(assertion)) ? (IMMEDIATE_CRASH()) : (void)0) |
13 | 20 |
14 void DoCheck(bool b) { | 21 void DoCheck(bool b) { |
15 CHECK(b) << "DoCheck " << b; | 22 CHECK(b) << "DoCheck " << b; |
16 } | 23 } |
17 | 24 |
| 25 void DoBlinkReleaseAssert(bool b) { |
| 26 BLINK_RELEASE_ASSERT_EQUIVALENT(b); |
| 27 } |
| 28 |
18 void DoCheckEq(int x, int y) { | 29 void DoCheckEq(int x, int y) { |
19 CHECK_EQ(x, y); | 30 CHECK_EQ(x, y); |
20 } | 31 } |
21 | 32 |
22 int main(int argc, const char* argv[]) { | 33 int main(int argc, const char* argv[]) { |
23 DoCheck(argc > 1); | 34 DoCheck(argc > 1); |
24 DoCheckEq(argc, 1); | 35 DoCheckEq(argc, 1); |
| 36 DoBlinkReleaseAssert(argc > 1); |
25 } | 37 } |
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