diff --git a/src/builtins/builtins-promise.cc b/src/builtins/builtins-promise.cc
index d07598661e..564fbaf54c 100644
--- a/src/builtins/builtins-promise.cc
+++ b/src/builtins/builtins-promise.cc
@@ -685,8 +685,8 @@ void PromiseBuiltinsAssembler::InternalResolvePromise(Node* context,
 
       Bind(&if_fulfilled);
       {
-        CallRuntime(Runtime::kPromiseFulfill, context, promise,
-                    SmiConstant(v8::Promise::kFulfilled), thenable_value);
+        PromiseFulfill(context, promise, thenable_value,
+                       v8::Promise::kFulfilled);
         PromiseSetHasHandler(promise);
         Goto(&out);
       }
@@ -757,8 +757,7 @@ void PromiseBuiltinsAssembler::InternalResolvePromise(Node* context,
   // 7.b Return FulfillPromise(promise, resolution).
   Bind(&fulfill);
   {
-    CallRuntime(Runtime::kPromiseFulfill, context, promise,
-                SmiConstant(v8::Promise::kFulfilled), result);
+    PromiseFulfill(context, promise, result, v8::Promise::kFulfilled);
     Goto(&out);
   }
 
@@ -785,6 +784,50 @@ void PromiseBuiltinsAssembler::InternalResolvePromise(Node* context,
   Bind(&out);
 }
 
+void PromiseBuiltinsAssembler::PromiseFulfill(
+    Node* context, Node* promise, Node* result,
+    v8::Promise::PromiseState status) {
+  Label do_promisereset(this);
+
+  Node* const status_smi = SmiConstant(static_cast<int>(status));
+  Node* const deferred_promise =
+      LoadObjectField(promise, JSPromise::kDeferredPromiseOffset);
+
+  GotoIf(IsUndefined(deferred_promise), &do_promisereset);
+
+  Node* const tasks =
+      status == v8::Promise::kFulfilled
+          ? LoadObjectField(promise, JSPromise::kFulfillReactionsOffset)
+          : LoadObjectField(promise, JSPromise::kRejectReactionsOffset);
+
+  Node* const deferred_on_resolve =
+      LoadObjectField(promise, JSPromise::kDeferredOnResolveOffset);
+  Node* const deferred_on_reject =
+      LoadObjectField(promise, JSPromise::kDeferredOnRejectOffset);
+
+  Node* const info = AllocatePromiseReactionJobInfo(
+      promise, result, tasks, deferred_promise, deferred_on_resolve,
+      deferred_on_reject, context);
+  CallRuntime(Runtime::kEnqueuePromiseReactionJob, context, info, status_smi);
+  Goto(&do_promisereset);
+
+  Bind(&do_promisereset);
+  {
+    StoreObjectField(promise, JSPromise::kStatusOffset, status_smi);
+    StoreObjectField(promise, JSPromise::kResultOffset, result);
+    StoreObjectFieldRoot(promise, JSPromise::kDeferredPromiseOffset,
+                         Heap::kUndefinedValueRootIndex);
+    StoreObjectFieldRoot(promise, JSPromise::kDeferredOnResolveOffset,
+                         Heap::kUndefinedValueRootIndex);
+    StoreObjectFieldRoot(promise, JSPromise::kDeferredOnRejectOffset,
+                         Heap::kUndefinedValueRootIndex);
+    StoreObjectFieldRoot(promise, JSPromise::kFulfillReactionsOffset,
+                         Heap::kUndefinedValueRootIndex);
+    StoreObjectFieldRoot(promise, JSPromise::kRejectReactionsOffset,
+                         Heap::kUndefinedValueRootIndex);
+  }
+}
+
 // ES#sec-promise-reject-functions
 // Promise Reject Functions
 BUILTIN(PromiseRejectClosure) {
diff --git a/src/builtins/builtins-promise.h b/src/builtins/builtins-promise.h
index eea91ab5c4..7bc53ac2ba 100644
--- a/src/builtins/builtins-promise.h
+++ b/src/builtins/builtins-promise.h
@@ -67,6 +67,9 @@ class PromiseBuiltinsAssembler : public CodeStubAssembler {
   Node* CreatePromiseGetCapabilitiesExecutorContext(Node* native_context,
                                                     Node* promise_capability);
 
+  void PromiseFulfill(Node* context, Node* promise, Node* result,
+                      v8::Promise::PromiseState status);
+
   Node* NewPromiseCapability(Node* context, Node* constructor,
                              Node* debug_event = nullptr);
 
diff --git a/src/runtime/runtime-promise.cc b/src/runtime/runtime-promise.cc
index d0550a048d..9818408d88 100644
--- a/src/runtime/runtime-promise.cc
+++ b/src/runtime/runtime-promise.cc
@@ -184,16 +184,6 @@ RUNTIME_FUNCTION(Runtime_PromiseReject) {
   return isolate->heap()->undefined_value();
 }
 
-RUNTIME_FUNCTION(Runtime_PromiseFulfill) {
-  DCHECK(args.length() == 3);
-  HandleScope scope(isolate);
-  CONVERT_ARG_HANDLE_CHECKED(JSPromise, promise, 0);
-  CONVERT_SMI_ARG_CHECKED(status, 1);
-  CONVERT_ARG_HANDLE_CHECKED(Object, value, 2);
-  PromiseFulfill(isolate, promise, status, value);
-  return isolate->heap()->undefined_value();
-}
-
 RUNTIME_FUNCTION(Runtime_EnqueuePromiseReactionJob) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 01c4200261..9d92ceb7ad 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -306,7 +306,6 @@ namespace internal {
   F(NewTypeError, 2, 1)                             \
   F(OrdinaryHasInstance, 2, 1)                      \
   F(PromiseReject, 3, 1)                            \
-  F(PromiseFulfill, 3, 1)                           \
   F(PromiseHookInit, 2, 1)                          \
   F(PromiseHookResolve, 1, 1)                       \
   F(PromiseHookBefore, 1, 1)                        \