Fix a crash when generating forward jumps to labels at very high assembly offsets

test/mjsunit/big-code-segment.js

Index: test/mjsunit/big-code-segment.js
===================================================================
--- test/mjsunit/big-code-segment.js	(revision 0)
+++ test/mjsunit/big-code-segment.js	(revision 0)
@@ -0,0 +1,40 @@
+// Copyright 2009 the V8 project authors. All rights reserved.

[Yang, 2013/06/25 12:09:47]

Update year to 2013 since this is a new file.

+// Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Test that we can create jumps to labels even with very big amount of code.
+function testBigCode(amount_of_hunks, value) {
+    var hunk = "for (var i = 0; i < 32; ++i) { if (v & (1 << i)) ones++; else zeros++; }";

[Yang, 2013/06/25 12:09:47]

We got a 80 character limit per line, please reformat your code accordingly!

+    eval("function testBody(v) { var ones = 0; var zeros = 0;" + new Array(amount_of_hunks+1).join(hunk) + " return [zeros, ones]; }");
+    return testBody(value);
+}
+
+var times = 160000;
+var result = testBigCode(times, 0xF0F0F0FF);
+
+assertEquals(times * 12, result[0], "Result for zeros is correct");
+assertEquals(times * 20, result[1], "Result for ones is correct");