The Tor Browser / file comparison
comparison: mfbt/Likely.h
mfbt/Likely.h
- changeset 2
- 7e26c7da4463
equal
deleted
inserted
replaced
| -1:000000000000 | 0:4ae371b498fd |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 /* | |
| 8 * MOZ_LIKELY and MOZ_UNLIKELY macros to hint to the compiler how a | |
| 9 * boolean predicate should be branch-predicted. | |
| 10 */ | |
| 11 | |
| 12 #ifndef mozilla_Likely_h | |
| 13 #define mozilla_Likely_h | |
| 14 | |
| 15 #if defined(__clang__) || defined(__GNUC__) | |
| 16 # define MOZ_LIKELY(x) (__builtin_expect(!!(x), 1)) | |
| 17 # define MOZ_UNLIKELY(x) (__builtin_expect(!!(x), 0)) | |
| 18 #else | |
| 19 # define MOZ_LIKELY(x) (!!(x)) | |
| 20 # define MOZ_UNLIKELY(x) (!!(x)) | |
| 21 #endif | |
| 22 | |
| 23 #endif /* mozilla_Likely_h */ |
