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| 1 /* |
| 2 * Copyright 2014 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #ifndef SkBarriers_arm_DEFINED |
| 9 #define SkBarriers_arm_DEFINED |
| 10 |
| 11 static inline void sk_compiler_barrier() { asm volatile("" : : : "memory"); } |
| 12 |
| 13 template <typename T> |
| 14 T sk_acquire_load(T* ptr) { |
| 15 T val = *ptr; |
| 16 __sync_synchronize(); // Issue a full barrier, which is an overkill acquire
barrier. |
| 17 return val; |
| 18 } |
| 19 |
| 20 template <typename T> |
| 21 void sk_release_store(T* ptr, T val) { |
| 22 __sync_synchronize(); // Issue a full barrier, which is an overkill release
barrier. |
| 23 *ptr = val; |
| 24 } |
| 25 |
| 26 #endif//SkBarriers_x86_DEFINED |
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