| // Copyright 2010 the V8 project authors. 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 |
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| |
| // Reduced regression test for a global value numbering bug. Original |
| // value of global variable height was reused even after reassignment. |
| |
| var height = 267; |
| |
| var count = 0; |
| function inner() { height = 0; ++count; } |
| function outer() {} |
| |
| function test() { |
| for (var i = 0; i < height; ++i) { |
| for (var j = -6; j < 7; ++j) { |
| if (i + j < 0 || i + j >= height) continue; |
| for (var k = -6; k < 7; ++k) { |
| inner(); |
| } |
| } |
| outer(); |
| } |
| } |
| |
| test(); |
| |
| assertEquals(13, count); |