Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 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. |
| 27 | |
| 28 | // Flags: --expose-debug-as debug --allow-natives-syntax |
| 29 | // Flags: --concurrent-recompilation --block-concurrent-recompilation |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 30 | |
| 31 | if (!%IsConcurrentRecompilationSupported()) { |
| 32 | print("Concurrent recompilation is disabled. Skipping this test."); |
| 33 | quit(); |
| 34 | } |
| 35 | |
| 36 | Debug = debug.Debug; |
| 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; |
| 56 | } |
| 57 | |
| 58 | f(); |
| 59 | f(); |
| 60 | %OptimizeFunctionOnNextCall(f, "concurrent"); // Mark with builtin. |
| 61 | f(); // Kick off concurrent recompilation. |
| 62 | |
| 63 | // After compile graph has been created... |
| 64 | Debug.setListener(listener); // Activate debugger. |
| 65 | Debug.setBreakPoint(f, 2, 0); // Force deopt. |
| 66 | |
| 67 | // At this point, concurrent recompilation is still being blocked. |
| 68 | assertUnoptimized(f, "no sync"); |
| 69 | // Let concurrent recompilation proceed. |
| 70 | %UnblockConcurrentRecompilation(); |
| 71 | // Sync with optimization thread. But no optimized code is installed. |
| 72 | assertUnoptimized(f, "sync"); |
| 73 | |
| 74 | f(); // Trigger break point. |
| 75 | assertEquals(1, listened); |
| 76 | assertNull(exception); |