Rename "NoBarrier" memory operations to "Relaxed".

src/base/atomicops_internals_portable.h

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file is an internal atomic implementation, use atomicops.h instead.
 //
 // This implementation uses C++11 atomics' member functions. The code base is
 // currently written assuming atomicity revolves around accesses instead of
 // C++11's memory locations. The burden is on the programmer to ensure that all
 // memory locations accessed atomically are never accessed non-atomically (tsan
@@ skipping 31 matching lines @@
 inline void MemoryBarrier() {
 #if defined(__GLIBCXX__)
   // Work around libstdc++ bug 51038 where atomic_thread_fence was declared but
   // not defined, leading to the linker complaining about undefined references.
   __atomic_thread_fence(std::memory_order_seq_cst);
 #else
   std::atomic_thread_fence(std::memory_order_seq_cst);
 #endif
 }
 
-inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
-                                         Atomic32 old_value,
-                                         Atomic32 new_value) {
+inline Atomic32 Relaxed_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value, Atomic32 new_value) {
   __atomic_compare_exchange_n(ptr, &old_value, new_value, false,
                               __ATOMIC_RELAXED, __ATOMIC_RELAXED);
   return old_value;
 }
 
-inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
-                                         Atomic32 new_value) {
+inline Atomic32 Relaxed_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
   return __atomic_exchange_n(ptr, new_value, __ATOMIC_RELAXED);
 }
 
-inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32* ptr,
-                                          Atomic32 increment) {
+inline Atomic32 Relaxed_AtomicIncrement(volatile Atomic32* ptr,
+                                        Atomic32 increment) {
   return increment + __atomic_fetch_add(ptr, increment, __ATOMIC_RELAXED);
 }
 
 inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr,
                                         Atomic32 increment) {
   return increment + __atomic_fetch_add(ptr, increment, __ATOMIC_SEQ_CST);
 }
 
 inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
                                        Atomic32 old_value, Atomic32 new_value) {
   __atomic_compare_exchange_n(ptr, &old_value, new_value, false,
                               __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
   return old_value;
 }
 
 inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
                                        Atomic32 old_value, Atomic32 new_value) {
   __atomic_compare_exchange_n(ptr, &old_value, new_value, false,
                               __ATOMIC_RELEASE, __ATOMIC_RELAXED);
   return old_value;
 }
 
-inline void NoBarrier_Store(volatile Atomic8* ptr, Atomic8 value) {
+inline void Relaxed_Store(volatile Atomic8* ptr, Atomic8 value) {
   __atomic_store_n(ptr, value, __ATOMIC_RELAXED);
 }
 
-inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+inline void Relaxed_Store(volatile Atomic32* ptr, Atomic32 value) {
   __atomic_store_n(ptr, value, __ATOMIC_RELAXED);
 }
 
 inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
   __atomic_store_n(ptr, value, __ATOMIC_RELEASE);
 }
 
-inline Atomic8 NoBarrier_Load(volatile const Atomic8* ptr) {
+inline Atomic8 Relaxed_Load(volatile const Atomic8* ptr) {
   return __atomic_load_n(ptr, __ATOMIC_RELAXED);
 }
 
-inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+inline Atomic32 Relaxed_Load(volatile const Atomic32* ptr) {
   return __atomic_load_n(ptr, __ATOMIC_RELAXED);
 }
 
 inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
   return __atomic_load_n(ptr, __ATOMIC_ACQUIRE);
 }
 
 #if defined(V8_HOST_ARCH_64_BIT)
 
-inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
-                                         Atomic64 old_value,
-                                         Atomic64 new_value) {
+inline Atomic64 Relaxed_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value, Atomic64 new_value) {
   __atomic_compare_exchange_n(ptr, &old_value, new_value, false,
                               __ATOMIC_RELAXED, __ATOMIC_RELAXED);
   return old_value;
 }
 
-inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
-                                         Atomic64 new_value) {
+inline Atomic64 Relaxed_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
   return __atomic_exchange_n(ptr, new_value, __ATOMIC_RELAXED);
 }
 
-inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64* ptr,
-                                          Atomic64 increment) {
+inline Atomic64 Relaxed_AtomicIncrement(volatile Atomic64* ptr,
+                                        Atomic64 increment) {
   return increment + __atomic_fetch_add(ptr, increment, __ATOMIC_RELAXED);
 }
 
 inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64* ptr,
                                         Atomic64 increment) {
   return increment + __atomic_fetch_add(ptr, increment, __ATOMIC_SEQ_CST);
 }
 
 inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
                                        Atomic64 old_value, Atomic64 new_value) {
   __atomic_compare_exchange_n(ptr, &old_value, new_value, false,
                               __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
   return old_value;
 }
 
 inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
                                        Atomic64 old_value, Atomic64 new_value) {
   __atomic_compare_exchange_n(ptr, &old_value, new_value, false,
                               __ATOMIC_RELEASE, __ATOMIC_RELAXED);
   return old_value;
 }
 
-inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+inline void Relaxed_Store(volatile Atomic64* ptr, Atomic64 value) {
   __atomic_store_n(ptr, value, __ATOMIC_RELAXED);
 }
 
 inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
   __atomic_store_n(ptr, value, __ATOMIC_RELEASE);
 }
 
-inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+inline Atomic64 Relaxed_Load(volatile const Atomic64* ptr) {
   return __atomic_load_n(ptr, __ATOMIC_RELAXED);
 }
 
 inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
   return __atomic_load_n(ptr, __ATOMIC_ACQUIRE);
 }
 
 #endif  // defined(V8_HOST_ARCH_64_BIT)
 }  // namespace base
 }  // namespace v8
 
 #endif  // V8_BASE_ATOMICOPS_INTERNALS_PORTABLE_H_