// Copyright 2019 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 --opt --no-always-opt var expect_interpreted = true; function C() { this.a = 1; assertEquals(expect_interpreted, %IsBeingInterpreted()); if (!%IsDictPropertyConstTrackingEnabled()) { // TODO(v8:11457) If v8_dict_property_const_tracking is enabled, then the // prototype of |this| in D() is a dictionary mode object, and we cannot // inline the storing of this.x, yet. %TurbofanStaticAssert(this.x == 42); } }; function D() { this.x = 42; C.call(this); }; function E() { D.call(this); } function F() { E.call(this); }; function G() { F.call(this); }; function foo() { new D; } %PrepareFunctionForOptimization(C); %PrepareFunctionForOptimization(D); %PrepareFunctionForOptimization(E); %PrepareFunctionForOptimization(F); %PrepareFunctionForOptimization(G); %PrepareFunctionForOptimization(foo); // Make 'this.x' access in C megamorhpic. var c = new C; var d = new D; var e = new E; var f = new F; var g = new G; foo(); foo(); expect_interpreted = false; %OptimizeFunctionForTopTier(foo); foo();