1b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Copyright 2010 the V8 project authors. All rights reserved.
281362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// Redistribution and use in source and binary forms, with or without
381362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// modification, are permitted provided that the following conditions are
481362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// met:
581362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//
681362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//     * Redistributions of source code must retain the above copyright
781362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//       notice, this list of conditions and the following disclaimer.
881362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//     * Redistributions in binary form must reproduce the above
981362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//       copyright notice, this list of conditions and the following
1081362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//       disclaimer in the documentation and/or other materials provided
1181362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//       with the distribution.
1281362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//     * Neither the name of Google Inc. nor the names of its
1381362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//       contributors may be used to endorse or promote products derived
1481362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//       from this software without specific prior written permission.
1581362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen//
1681362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1781362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1881362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1981362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
2081362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
2181362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
2281362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
2381362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
2481362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
2581362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
2681362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2781362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen
288b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch// Flags: --allow-natives-syntax
2981362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen
30b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochfunction f(n) {
31b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch  // Force deopt in both leaf case and when returning. To make
32b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch  // debugging easier, the operation that bails out (<<) is so simple
33b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch  // that it doesn't cause GCs.
34b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch  if (n == 0) return 1 << one;
35b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch  return f(n - 1) << one;
36b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch}
3781362e16c30e9e970af6b17592f627ad8cdee4d8Kristian Monsen
38b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch
39b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvar one = 1;
408b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochfor (var i = 0; i < 5; i++) assertEquals(1 << 5, f(4));
418b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch%OptimizeFunctionOnNextCall(f);
428b112d2025046f85ef7f6be087c6129c872ebad2Ben MurdochassertEquals(1 << 5, f(4));
43b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch
44b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvar one = { valueOf: function() { return 1; } };
458b112d2025046f85ef7f6be087c6129c872ebad2Ben MurdochassertEquals(1 << 5, f(4));
46