[Atomics] Make Atomics.exchange a builtin using TF

src/compiler/instruction-selector.cc

Index: src/compiler/instruction-selector.cc
diff --git a/src/compiler/instruction-selector.cc b/src/compiler/instruction-selector.cc
index ae96b9106f390d72ed11e34ae2ab027c00d6f244..ac8e0d62877b2857cb122afe76b08e60695b07b6 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -1440,6 +1440,11 @@ void InstructionSelector::VisitNode(Node* node) {
     }
     case IrOpcode::kAtomicStore:
       return VisitAtomicStore(node);
+    case IrOpcode::kAtomicExchange: {
+      MachineType type = AtomicExchangeRepresentationOf(node->op());
+      MarkAsRepresentation(type.representation(), node);
+      return VisitAtomicExchange(node);
+    }
     case IrOpcode::kProtectedLoad: {
       LoadRepresentation type = LoadRepresentationOf(node->op());
       MarkAsRepresentation(type.representation(), node);