Upload Kmake

deps/v8/test/mjsunit/compiler/regress-crbug-1474379.js

@@ -0,0 +1,22 @@
+// Copyright 2023 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.
+
+// Flags: --allow-natives-syntax --turbofan --no-maglev
+
+let d8 = this.d8;
+const obj = Object();
+
+function foo() {
+  return Promise.resolve(obj);
+}
+
+%PrepareFunctionForOptimization(foo);
+assertNotEquals(foo(), undefined);
+
+Object.defineProperty(obj, "then", {
+  get: function () { d8.debugger.enable(); },
+});
+
+%OptimizeFunctionOnNextCall(foo);
+assertNotEquals(foo(), undefined);