[arm64] Use exclusive instructions in exchange

src/arm64/decoder-arm64.h

 // Copyright 2013 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.
 
 #ifndef V8_ARM64_DECODER_ARM64_H_
 #define V8_ARM64_DECODER_ARM64_H_
 
 #include <list>
 
 #include "src/arm64/instructions-arm64.h"
@@ skipping 21 matching lines @@
   V(Exception)                     \
   V(LoadStorePairPostIndex)        \
   V(LoadStorePairOffset)           \
   V(LoadStorePairPreIndex)         \
   V(LoadLiteral)                   \
   V(LoadStoreUnscaledOffset)       \
   V(LoadStorePostIndex)            \
   V(LoadStorePreIndex)             \
   V(LoadStoreRegisterOffset)       \
   V(LoadStoreUnsignedOffset)       \
+  V(LoadStoreExclusive)            \
   V(LoadStoreAcquireRelease)       \
   V(LogicalShifted)                \
   V(AddSubShifted)                 \
   V(AddSubExtended)                \
   V(AddSubWithCarry)               \
   V(ConditionalCompareRegister)    \
   V(ConditionalCompareImmediate)   \
   V(ConditionalSelect)             \
   V(DataProcessing1Source)         \
   V(DataProcessing2Source)         \
@@ skipping 127 matching lines @@
   // tree, and call the corresponding visitors.
   // On entry, instruction bits 27:25 = 0x7.
   void DecodeAdvSIMDDataProcessing(Instruction* instr);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ARM64_DECODER_ARM64_H_