[Atomics] Make Atomics.exchange a builtin using TF

src/compiler/x64/code-generator-x64.cc

 // 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.
 
 #include "src/compiler/code-generator.h"
 
 #include <limits>
 
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
@@ skipping 2221 matching lines @@
       __ CompareRoot(rsp, Heap::kStackLimitRootIndex);
       break;
     case kAtomicLoadInt8:
     case kAtomicLoadUint8:
     case kAtomicLoadInt16:
     case kAtomicLoadUint16:
     case kAtomicLoadWord32:
     case kAtomicStoreWord8:
     case kAtomicStoreWord16:
     case kAtomicStoreWord32:
+    case kAtomicExchangeInt8:
+    case kAtomicExchangeUint8:
+    case kAtomicExchangeInt16:
+    case kAtomicExchangeUint16:
+    case kAtomicExchangeWord32:
       UNREACHABLE();  // Won't be generated by instruction selector.
       break;
   }
   return kSuccess;
 }  // NOLINT(readability/fn_size)
 
 namespace {
 
 Condition FlagsConditionToCondition(FlagsCondition condition) {
   switch (condition) {
@@ skipping 606 matching lines @@
     int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc;
     __ Nop(padding_size);
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8