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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: --fold-constants --nodead-code-elimination | 28 // Flags: --expose-debug-as debug --allow-natives-syntax |
29 // Flags: --expose-gc --allow-natives-syntax | |
30 // Flags: --parallel-recompilation --parallel-recompilation-delay=300 | 29 // Flags: --parallel-recompilation --parallel-recompilation-delay=300 |
31 | 30 |
32 if (!%IsParallelRecompilationSupported()) { | 31 if (!%IsParallelRecompilationSupported()) { |
33 print("Parallel recompilation is disabled. Skipping this test."); | 32 print("Parallel recompilation is disabled. Skipping this test."); |
34 quit(); | 33 quit(); |
35 } | 34 } |
36 | 35 |
37 function assertUnoptimized(fun) { | 36 Debug = debug.Debug; |
38 assertTrue(%GetOptimizationStatus(fun) != 1); | 37 |
| 38 function listener(event, exec_state, event_data, data) { |
| 39 if (event != Debug.DebugEvent.Break) return; |
| 40 try { |
| 41 assertEquals("foo", exec_state.frame(0).evaluate("a").value()); |
| 42 } catch (e) { |
| 43 exception = e; |
| 44 }; |
| 45 listened++; |
| 46 }; |
| 47 |
| 48 var exception = null; |
| 49 var listened = 0; |
| 50 |
| 51 var f = function() { |
| 52 var a = "foo"; |
| 53 var b = a.substring("1"); |
| 54 [a, b].sort(); |
| 55 return a; |
39 } | 56 } |
40 | 57 |
41 function test(fun) { | 58 f(); |
42 fun(); | 59 f(); |
43 fun(); | 60 %OptimizeFunctionOnNextCall(f, "parallel"); // Mark with builtin. |
44 %OptimizeFunctionOnNextCall(fun, "parallel"); | 61 f(); // Kick off parallel recompilation. |
45 fun(); // Trigger optimization in the background. | |
46 gc(); // Tenure cons string. | |
47 assertUnoptimized(fun); // Compilation not complete yet. | |
48 %CompleteOptimization(fun); // Compilation embeds tenured cons string. | |
49 gc(); // Visit embedded cons string during mark compact. | |
50 } | |
51 | 62 |
52 function f() { | 63 Debug.setListener(listener); // Activate debugger. |
53 return "abcdefghijklmn" + "123456789"; | 64 Debug.setBreakPoint(f, 2, 0); // Force deopt. |
54 } | 65 %CompleteOptimization(f); // Install optimized code. |
55 | 66 |
56 function g() { | 67 f(); // Trigger break point. |
57 return "abcdefghijklmn\u2603" + "123456789"; | 68 assertEquals(1, listened); |
58 } | 69 assertNull(exception); |
59 | |
60 function h() { | |
61 return "abcdefghijklmn\u2603" + "123456789\u2604"; | |
62 } | |
63 | |
64 test(f); | |
65 test(g); | |
66 test(h); | |
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