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| 1 /* | 1 /* |
| 2 * Copyright (C) 2011, 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2011, 2012 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| (...skipping 135 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 146 #define NEVER_INLINE __attribute__((__noinline__)) | 146 #define NEVER_INLINE __attribute__((__noinline__)) |
| 147 #else | 147 #else |
| 148 #define NEVER_INLINE | 148 #define NEVER_INLINE |
| 149 #endif | 149 #endif |
| 150 #endif | 150 #endif |
| 151 | 151 |
| 152 | 152 |
| 153 /* UNLIKELY */ | 153 /* UNLIKELY */ |
| 154 | 154 |
| 155 #ifndef UNLIKELY | 155 #ifndef UNLIKELY |
| 156 #if COMPILER(GCC) | 156 #if COMPILER(GCC) || COMPILER(CLANG) |
| 157 #define UNLIKELY(x) __builtin_expect((x), 0) | 157 #define UNLIKELY(x) __builtin_expect((x), 0) |
| 158 #else | 158 #else |
| 159 #define UNLIKELY(x) (x) | 159 #define UNLIKELY(x) (x) |
| 160 #endif | 160 #endif |
| 161 #endif | 161 #endif |
| 162 | 162 |
| 163 | 163 |
| 164 /* LIKELY */ | 164 /* LIKELY */ |
| 165 | 165 |
| 166 #ifndef LIKELY | 166 #ifndef LIKELY |
| 167 #if COMPILER(GCC) | 167 #if COMPILER(GCC) || COMPILER(CLANG) |
| 168 #define LIKELY(x) __builtin_expect((x), 1) | 168 #define LIKELY(x) __builtin_expect((x), 1) |
| 169 #else | 169 #else |
| 170 #define LIKELY(x) (x) | 170 #define LIKELY(x) (x) |
| 171 #endif | 171 #endif |
| 172 #endif | 172 #endif |
| 173 | 173 |
| 174 | 174 |
| 175 /* NO_RETURN */ | 175 /* NO_RETURN */ |
| 176 | 176 |
| 177 | 177 |
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| 268 #define WTf_COMPILER_SUPPORTS_PRETTY_FUNCTION 1 | 268 #define WTf_COMPILER_SUPPORTS_PRETTY_FUNCTION 1 |
| 269 #define WTF_PRETTY_FUNCTION __PRETTY_FUNCTION__ | 269 #define WTF_PRETTY_FUNCTION __PRETTY_FUNCTION__ |
| 270 #elif COMPILER(MSVC) | 270 #elif COMPILER(MSVC) |
| 271 #define WTf_COMPILER_SUPPORTS_PRETTY_FUNCTION 1 | 271 #define WTf_COMPILER_SUPPORTS_PRETTY_FUNCTION 1 |
| 272 #define WTF_PRETTY_FUNCTION __FUNCDNAME__ | 272 #define WTF_PRETTY_FUNCTION __FUNCDNAME__ |
| 273 #else | 273 #else |
| 274 #define WTF_PRETTY_FUNCTION __FUNCTION__ | 274 #define WTF_PRETTY_FUNCTION __FUNCTION__ |
| 275 #endif | 275 #endif |
| 276 | 276 |
| 277 #endif /* WTF_Compiler_h */ | 277 #endif /* WTF_Compiler_h */ |
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Chromium Code Reviews
Issue 114933002:
[POSSIBLE PERFORMANCE IMPACT] Use __builtin_expect on Clang as well (for UNLIKELY and LIKELY) (Closed)
Base URL: svn://svn.chromium.org/blink/trunk