regress-396684.js - mozsearch

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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

//-----------------------------------------------------------------------------

var BUGNUMBER = 396684;

var summary = 'Function call with stack arena exhausted';

var actual = '';

var expect = '';

/*

  The test case builds a function containing f(0,0,...,0,Math.atan2()) with

  enough zero arguments to exhaust the current stack arena fully. Thus, when

  Math.atan2 is loaded into the stack, there would be no room for the extra 2

  args required by Math.atan2 and args will be allocated from the new arena.

*/

//-----------------------------------------------------------------------------

test();

//-----------------------------------------------------------------------------

function f() {

  return arguments[arguments.length - 1];

function test()

  printBugNumber(BUGNUMBER);

  printStatus (summary);

  expect = 'PASS';

  var src = "return f(" +Array(10*1000).join("0,")+"Math.atan2());";

  var result = new Function(src)();

  if (typeof result != "number" || !isNaN(result))

    actual = "unexpected result: " + result;

  else

    actual = 'PASS';

  reportCompare(expect, actual, summary);