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 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 28 | // Flags: --allow-natives-syntax |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 29 | |
| 30 | var o1 = {x:1}; |
| 31 | var o2 = {}; |
| 32 | var deopt_getter = false; |
| 33 | var deopt_setter = false; |
| 34 | |
| 35 | function f_mono(o) { |
| 36 | return 5 + o.x++; |
| 37 | } |
| 38 | |
| 39 | var to_deopt = f_mono; |
| 40 | |
| 41 | var v = 1; |
| 42 | var g = 0; |
| 43 | var s = 0; |
| 44 | |
| 45 | Object.defineProperty(o2, "x", |
| 46 | {get:function() { |
| 47 | g++; |
| 48 | if (deopt_getter) { |
| 49 | deopt_getter = false; |
| 50 | %DeoptimizeFunction(to_deopt); |
| 51 | } |
| 52 | return v; |
| 53 | }, |
| 54 | set:function(new_v) { |
| 55 | v = new_v; |
| 56 | s++; |
| 57 | if (deopt_setter) { |
| 58 | deopt_setter = false; |
| 59 | %DeoptimizeFunction(to_deopt); |
| 60 | } |
| 61 | }}); |
| 62 | |
| 63 | assertEquals(6, f_mono(o2)); |
| 64 | assertEquals(1, g); |
| 65 | assertEquals(1, s); |
| 66 | assertEquals(7, f_mono(o2)); |
| 67 | assertEquals(2, g); |
| 68 | assertEquals(2, s); |
| 69 | %OptimizeFunctionOnNextCall(f_mono); |
| 70 | deopt_setter = true; |
| 71 | assertEquals(8, f_mono(o2)); |
| 72 | assertEquals(3, g); |
| 73 | assertEquals(3, s); |
| 74 | |
| 75 | function f_poly(o) { |
| 76 | return 5 + o.x++; |
| 77 | } |
| 78 | |
| 79 | v = 1; |
| 80 | to_deopt = f_poly; |
| 81 | |
| 82 | f_poly(o1); |
| 83 | f_poly(o1); |
| 84 | assertEquals(6, f_poly(o2)); |
| 85 | assertEquals(4, g); |
| 86 | assertEquals(4, s); |
| 87 | assertEquals(7, f_poly(o2)); |
| 88 | assertEquals(5, g); |
| 89 | assertEquals(5, s); |
| 90 | %OptimizeFunctionOnNextCall(f_poly); |
| 91 | deopt_setter = true; |
| 92 | assertEquals(8, f_poly(o2)); |
| 93 | assertEquals(6, g); |
| 94 | assertEquals(6, s); |
| 95 | |
| 96 | %OptimizeFunctionOnNextCall(f_poly); |
| 97 | v = undefined; |
| 98 | assertEquals(NaN, f_poly(o2)); |
| 99 | assertEquals(7, g); |
| 100 | assertEquals(7, s); |
| 101 | |
| 102 | function f_pre(o) { |
| 103 | return 5 + ++o.x; |
| 104 | } |
| 105 | |
| 106 | v = 1; |
| 107 | to_deopt = f_pre; |
| 108 | |
| 109 | f_pre(o1); |
| 110 | f_pre(o1); |
| 111 | assertEquals(7, f_pre(o2)); |
| 112 | assertEquals(8, g); |
| 113 | assertEquals(8, s); |
| 114 | assertEquals(8, f_pre(o2)); |
| 115 | assertEquals(9, g); |
| 116 | assertEquals(9, s); |
| 117 | %OptimizeFunctionOnNextCall(f_pre); |
| 118 | deopt_setter = true; |
| 119 | assertEquals(9, f_pre(o2)); |
| 120 | assertEquals(10, g); |
| 121 | assertEquals(10, s); |
| 122 | |
| 123 | %OptimizeFunctionOnNextCall(f_pre); |
| 124 | v = undefined; |
| 125 | assertEquals(NaN, f_pre(o2)); |
| 126 | assertEquals(11, g); |
| 127 | assertEquals(11, s); |
| 128 | |
| 129 | |
| 130 | function f_get(o) { |
| 131 | return 5 + o.x++; |
| 132 | } |
| 133 | |
| 134 | v = 1; |
| 135 | to_deopt = f_get; |
| 136 | |
| 137 | f_get(o1); |
| 138 | f_get(o1); |
| 139 | assertEquals(6, f_get(o2)); |
| 140 | assertEquals(12, g); |
| 141 | assertEquals(12, s); |
| 142 | assertEquals(7, f_get(o2)); |
| 143 | assertEquals(13, g); |
| 144 | assertEquals(13, s); |
| 145 | %OptimizeFunctionOnNextCall(f_get); |
| 146 | deopt_getter = true; |
| 147 | assertEquals(8, f_get(o2)); |
| 148 | assertEquals(14, g); |
| 149 | assertEquals(14, s); |
| 150 | |
| 151 | %OptimizeFunctionOnNextCall(f_get); |
| 152 | v = undefined; |
| 153 | assertEquals(NaN, f_get(o2)); |
| 154 | assertEquals(15, g); |
| 155 | assertEquals(15, s); |