1 // Copyright 2021 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_CODEGEN_ATOMIC_MEMORY_ORDER_H_
6 #define V8_CODEGEN_ATOMIC_MEMORY_ORDER_H_
7 
8 #include <ostream>
9 
10 #include "src/base/logging.h"
11 
12 namespace v8 {
13 namespace internal {
14 
15 // Atomic memory orders supported by the compiler.
16 enum class AtomicMemoryOrder : uint8_t { kAcqRel, kSeqCst };
17 
hash_value(AtomicMemoryOrder order)18 inline size_t hash_value(AtomicMemoryOrder order) {
19   return static_cast<uint8_t>(order);
20 }
21 
operator <<(std::ostream& os, AtomicMemoryOrder order)22 inline std::ostream& operator<<(std::ostream& os, AtomicMemoryOrder order) {
23   switch (order) {
24     case AtomicMemoryOrder::kAcqRel:
25       return os << "kAcqRel";
26     case AtomicMemoryOrder::kSeqCst:
27       return os << "kSeqCst";
28   }
29   UNREACHABLE();
30 }
31 
32 }  // namespace internal
33 }  // namespace v8
34 
35 #endif  // V8_CODEGEN_ATOMIC_MEMORY_ORDER_H_
36