16bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// Copyright 2013 the V8 project authors. All rights reserved.
26bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// Redistribution and use in source and binary forms, with or without
36bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// modification, are permitted provided that the following conditions are
46bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// met:
56bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//
66bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//     * Redistributions of source code must retain the above copyright
76bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//       notice, this list of conditions and the following disclaimer.
86bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//     * Redistributions in binary form must reproduce the above
96bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//       copyright notice, this list of conditions and the following
106bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//       disclaimer in the documentation and/or other materials provided
116bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//       with the distribution.
126bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//     * Neither the name of Google Inc. nor the names of its
136bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//       contributors may be used to endorse or promote products derived
146bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//       from this software without specific prior written permission.
156bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org//
166bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
176bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
186bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
196bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
206bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
216bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
226bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
236bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
246bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
256bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
266bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
276bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org
286bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org// Flags: --allow-natives-syntax
296bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org
306bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.orgfunction foo(word, nBits) {
316bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org  return (word[1] >>> nBits) | (word[0] << (32 - nBits));
326bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org}
336bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org
346bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.orgword = [0x1001, 0];
356bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org
366bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.orgvar expected = foo(word, 1);
376bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.orgfoo(word, 1);
386bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.org%OptimizeFunctionOnNextCall(foo);
396bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.orgvar optimized = foo(word, 1);
406bec0093ef661b53a1e338a233d7aafb9536a307mvstanton@chromium.orgassertEquals(expected, optimized)
41