src/v8/test/webkit/dfg-arguments-osr-exit.js

// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
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description(
"Tests aliased uses of 'arguments' that require reification of the Arguments object on OSR exit."
);

function baz() {
    return [variable];
}

function foo() {
    var result = 0;
    var a = arguments;
    for (var i = 0; i < a.length; ++i) {
        result += a[i];
        result += baz()[0];
    }
    return result;
}

function bar(x) {
    return foo(x);
}

var variable = 32;
var expected = "74";

for (var i = 0; i < 200; ++i) {
    if (i == 150) {
        variable = "32";
        expected = "\"4232\"";
    }

    shouldBe("bar(42)", expected);
}