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// Copyright 2022 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
function f(x) {
return x.a;
}
function Foo(a) {
this.a = a;
}
function Goo(a) {
this.a = a;
}
%PrepareFunctionForOptimization(f);
var o1 = new Foo(42);
var o2 = new Goo(4.2);
assertEquals(f(o1), 42);
assertEquals(f(o2), 4.2);
%OptimizeMaglevOnNextCall(f);
assertEquals(f(o1), 42);
assertEquals(f(o2), 4.2);
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