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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 // Flags: --allow-natives-syntax | 28 // Flags: --allow-natives-syntax |
29 // Flags: --concurrent-recompilation --concurrent-recompilation-delay=50 | 29 // Flags: --concurrent-recompilation --block-concurrent-recompilation |
30 | 30 |
31 if (!%IsConcurrentRecompilationSupported()) { | 31 if (!%IsConcurrentRecompilationSupported()) { |
32 print("Concurrent recompilation is disabled. Skipping this test."); | 32 print("Concurrent recompilation is disabled. Skipping this test."); |
33 quit(); | 33 quit(); |
34 } | 34 } |
35 | 35 |
36 function f(foo) { return foo.bar(); } | 36 function f(foo) { return foo.bar(); } |
37 | 37 |
38 var o = {}; | 38 var o = {}; |
39 o.__proto__ = { __proto__: { bar: function() { return 1; } } }; | 39 o.__proto__ = { __proto__: { bar: function() { return 1; } } }; |
40 | 40 |
41 assertEquals(1, f(o)); | 41 assertEquals(1, f(o)); |
42 assertEquals(1, f(o)); | 42 assertEquals(1, f(o)); |
43 | 43 |
44 // Mark for concurrent optimization. | 44 // Mark for concurrent optimization. |
45 %OptimizeFunctionOnNextCall(f, "concurrent"); | 45 %OptimizeFunctionOnNextCall(f, "concurrent"); |
46 // Trigger optimization in the background thread. | 46 // Kick off recompilation. |
47 assertEquals(1, f(o)); | 47 assertEquals(1, f(o)); |
48 // While concurrent recompilation is running, optimization not yet done. | 48 // Change the prototype chain after compile graph has been created. |
| 49 o.__proto__.__proto__ = { bar: function() { return 2; } }; |
| 50 // At this point, concurrent recompilation thread has not yet done its job. |
49 assertUnoptimized(f, "no sync"); | 51 assertUnoptimized(f, "no sync"); |
50 // Change the prototype chain during optimization to trigger map invalidation. | 52 // Let the background thread proceed. |
51 o.__proto__.__proto__ = { bar: function() { return 2; } }; | 53 %UnblockConcurrentRecompilation(); |
52 // Optimization eventually bails out due to map dependency. | 54 // Optimization eventually bails out due to map dependency. |
53 assertUnoptimized(f, "sync"); | 55 assertUnoptimized(f, "sync"); |
54 assertEquals(2, f(o)); | 56 assertEquals(2, f(o)); |
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