// Copyright 2024 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 --maglev --maglev-inlining // Flags: --maglev-escape-analysis function bar() {} function foo(b) { const a = [4.2]; // Object id = 0, // double elements array is object id = 1 function inner() { const o1 = {} // Object id = 0 (again) const o2 = {} // Object id = 1 (again) if (b) { bar(); // Deopt } return o2.d; // it should be undefined // but if materialization is wrong, it can // crash or return something else. } return inner(a); } %PrepareFunctionForOptimization(foo); foo(false); foo(false); %OptimizeMaglevOnNextCall(foo); foo(true);