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 sk_compiler_barrier()11static inline void sk_compiler_barrier() { asm volatile("" : : : "memory"); } 12 13 template <typename T> sk_acquire_load(T * ptr)14T 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> sk_release_store(T * ptr,T val)21void 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 27