13ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// Copyright 2012 the V8 project authors. All rights reserved.
2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without
3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are
4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met:
5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//
6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//     * Redistributions of source code must retain the above copyright
7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//       notice, this list of conditions and the following disclaimer.
8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//     * Redistributions in binary form must reproduce the above
9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//       copyright notice, this list of conditions and the following
10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//       disclaimer in the documentation and/or other materials provided
11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//       with the distribution.
12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//     * Neither the name of Google Inc. nor the names of its
13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//       contributors may be used to endorse or promote products derived
14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//       from this software without specific prior written permission.
15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//
16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Flags: --allow-natives-syntax
29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Test that we do not generate OSR entry points that have an arguments
31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// stack height different from zero. The OSR machinery cannot generate
32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// frames for that.
33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
34b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch(function() {
35b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch  "use strict";
36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
37b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch  var instantReturn = false;
38b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch  function inner() {
39b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    if (instantReturn) return;
40b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    assertSame(3, arguments.length);
41b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    assertSame(1, arguments[0]);
42b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    assertSame(2, arguments[1]);
43b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    assertSame(3, arguments[2]);
44b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch  }
453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch
46b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch  function outer() {
47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    inner(1,2,3);
48b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    // Trigger OSR, if optimization is not disabled.
49b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    if (%GetOptimizationStatus(outer) != 4) {
50b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch      while (%GetOptimizationCount(outer) == 0) {}
51b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch    }
52b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch  }
53b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch
54b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch  outer();
55b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch})();
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