Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Flags: --allow-natives-syntax --block-concurrent-recompilation |
| 6 | // Flags: --no-concurrent-osr --expose-gc |
| 7 | |
| 8 | function Ctor() { |
| 9 | this.a = 1; |
| 10 | } |
| 11 | |
| 12 | function get_closure() { |
| 13 | return function add_field(obj) { |
| 14 | obj.c = 3; |
| 15 | obj.a = obj.a + obj.c; |
| 16 | return obj.a; |
| 17 | } |
| 18 | } |
| 19 | function get_closure2() { |
| 20 | return function cc(obj) { |
| 21 | obj.c = 3; |
| 22 | obj.a = obj.a + obj.c; |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | function dummy() { |
| 27 | (function () { |
| 28 | var o = {c: 10}; |
| 29 | var f1 = get_closure2(); |
| 30 | f1(o); |
| 31 | f1(o); |
| 32 | %OptimizeFunctionOnNextCall(f1); |
| 33 | f1(o); |
| 34 | })(); |
| 35 | } |
| 36 | |
| 37 | var o = new Ctor(); |
| 38 | function opt() { |
| 39 | (function () { |
| 40 | var f1 = get_closure(); |
| 41 | f1(new Ctor()); |
| 42 | f1(new Ctor()); |
| 43 | %OptimizeFunctionOnNextCall(f1); |
| 44 | f1(o); |
| 45 | })(); |
| 46 | } |
| 47 | |
| 48 | // Optimize add_field and install its code in optimized code cache. |
| 49 | opt(); |
| 50 | opt(); |
| 51 | opt(); |
| 52 | |
| 53 | // Optimize dummy function to remove the add_field from head of optimized |
| 54 | // function list in the context. |
| 55 | dummy(); |
| 56 | dummy(); |
| 57 | |
| 58 | // Kill add_field in new space GC. |
| 59 | for(var i = 0; i < 3; i++) gc(true); |
| 60 | |
| 61 | // Trigger deopt. |
| 62 | o.c = 2.2; |
| 63 | |
| 64 | // Fetch optimized code of add_field from cache and crash. |
| 65 | var f2 = get_closure(); |
| 66 | f2(new Ctor()); |