Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 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 | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 28 | // Flags: --allow-natives-syntax --expose-gc |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 29 | |
| 30 | // IC and Crankshaft support for smi-only elements in dynamic array literals. |
| 31 | function get(foo) { return foo; } // Used to generate dynamic values. |
| 32 | |
| 33 | function array_literal_test() { |
| 34 | var a0 = [1, 2, 3]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 35 | assertTrue(%HasFastSmiElements(a0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 36 | var a1 = [get(1), get(2), get(3)]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 37 | assertTrue(%HasFastSmiElements(a1)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 38 | |
| 39 | var b0 = [1, 2, get("three")]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 40 | assertTrue(%HasFastObjectElements(b0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 41 | var b1 = [get(1), get(2), get("three")]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 42 | assertTrue(%HasFastObjectElements(b1)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 43 | |
| 44 | var c0 = [1, 2, get(3.5)]; |
| 45 | assertTrue(%HasFastDoubleElements(c0)); |
| 46 | assertEquals(3.5, c0[2]); |
| 47 | assertEquals(2, c0[1]); |
| 48 | assertEquals(1, c0[0]); |
| 49 | |
| 50 | var c1 = [1, 2, 3.5]; |
| 51 | assertTrue(%HasFastDoubleElements(c1)); |
| 52 | assertEquals(3.5, c1[2]); |
| 53 | assertEquals(2, c1[1]); |
| 54 | assertEquals(1, c1[0]); |
| 55 | |
| 56 | var c2 = [get(1), get(2), get(3.5)]; |
| 57 | assertTrue(%HasFastDoubleElements(c2)); |
| 58 | assertEquals(3.5, c2[2]); |
| 59 | assertEquals(2, c2[1]); |
| 60 | assertEquals(1, c2[0]); |
| 61 | |
| 62 | var object = new Object(); |
| 63 | var d0 = [1, 2, object]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 64 | assertTrue(%HasFastObjectElements(d0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 65 | assertEquals(object, d0[2]); |
| 66 | assertEquals(2, d0[1]); |
| 67 | assertEquals(1, d0[0]); |
| 68 | |
| 69 | var e0 = [1, 2, 3.5]; |
| 70 | assertTrue(%HasFastDoubleElements(e0)); |
| 71 | assertEquals(3.5, e0[2]); |
| 72 | assertEquals(2, e0[1]); |
| 73 | assertEquals(1, e0[0]); |
| 74 | |
| 75 | var f0 = [1, 2, [1, 2]]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 76 | assertTrue(%HasFastObjectElements(f0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 77 | assertEquals([1,2], f0[2]); |
| 78 | assertEquals(2, f0[1]); |
| 79 | assertEquals(1, f0[0]); |
| 80 | } |
| 81 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 82 | for (var i = 0; i < 3; i++) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 83 | array_literal_test(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 84 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 85 | %OptimizeFunctionOnNextCall(array_literal_test); |
| 86 | array_literal_test(); |
| 87 | |
| 88 | function test_large_literal() { |
| 89 | |
| 90 | function d() { |
| 91 | gc(); |
| 92 | return 2.5; |
| 93 | } |
| 94 | |
| 95 | function o() { |
| 96 | gc(); |
| 97 | return new Object(); |
| 98 | } |
| 99 | |
| 100 | large = |
| 101 | [ 0, 1, 2, 3, 4, 5, d(), d(), d(), d(), d(), d(), o(), o(), o(), o() ]; |
| 102 | assertFalse(%HasDictionaryElements(large)); |
| 103 | assertFalse(%HasFastSmiElements(large)); |
| 104 | assertFalse(%HasFastDoubleElements(large)); |
| 105 | assertTrue(%HasFastObjectElements(large)); |
| 106 | assertEquals(large, |
| 107 | [0, 1, 2, 3, 4, 5, 2.5, 2.5, 2.5, 2.5, 2.5, 2.5, |
| 108 | new Object(), new Object(), new Object(), new Object()]); |
| 109 | } |
| 110 | |
| 111 | for (var i = 0; i < 3; i++) { |
| 112 | test_large_literal(); |
| 113 | } |
| 114 | %OptimizeFunctionOnNextCall(test_large_literal); |
| 115 | test_large_literal(); |
| 116 | |
| 117 | function deopt_array(use_literal) { |
| 118 | if (use_literal) { |
| 119 | return [.5, 3, 4]; |
| 120 | } else { |
| 121 | return new Array(); |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | deopt_array(false); |
| 126 | deopt_array(false); |
| 127 | deopt_array(false); |
| 128 | %OptimizeFunctionOnNextCall(deopt_array); |
| 129 | var array = deopt_array(false); |
| 130 | assertOptimized(deopt_array); |
| 131 | deopt_array(true); |
| 132 | assertOptimized(deopt_array); |
| 133 | array = deopt_array(false); |
| 134 | assertOptimized(deopt_array); |
| 135 | |
| 136 | // Check that unexpected changes in the objects stored into the boilerplate |
| 137 | // also force a deopt. |
| 138 | function deopt_array_literal_all_smis(a) { |
| 139 | return [0, 1, a]; |
| 140 | } |
| 141 | |
| 142 | deopt_array_literal_all_smis(2); |
| 143 | deopt_array_literal_all_smis(3); |
| 144 | deopt_array_literal_all_smis(4); |
| 145 | array = deopt_array_literal_all_smis(4); |
| 146 | assertEquals(0, array[0]); |
| 147 | assertEquals(1, array[1]); |
| 148 | assertEquals(4, array[2]); |
| 149 | %OptimizeFunctionOnNextCall(deopt_array_literal_all_smis); |
| 150 | array = deopt_array_literal_all_smis(5); |
| 151 | array = deopt_array_literal_all_smis(6); |
| 152 | assertOptimized(deopt_array_literal_all_smis); |
| 153 | assertEquals(0, array[0]); |
| 154 | assertEquals(1, array[1]); |
| 155 | assertEquals(6, array[2]); |
| 156 | |
| 157 | array = deopt_array_literal_all_smis(.5); |
| 158 | assertUnoptimized(deopt_array_literal_all_smis); |
| 159 | assertEquals(0, array[0]); |
| 160 | assertEquals(1, array[1]); |
| 161 | assertEquals(.5, array[2]); |
| 162 | |
| 163 | function deopt_array_literal_all_doubles(a) { |
| 164 | return [0.5, 1, a]; |
| 165 | } |
| 166 | |
| 167 | deopt_array_literal_all_doubles(.5); |
| 168 | deopt_array_literal_all_doubles(.5); |
| 169 | deopt_array_literal_all_doubles(.5); |
| 170 | array = deopt_array_literal_all_doubles(0.5); |
| 171 | assertEquals(0.5, array[0]); |
| 172 | assertEquals(1, array[1]); |
| 173 | assertEquals(0.5, array[2]); |
| 174 | %OptimizeFunctionOnNextCall(deopt_array_literal_all_doubles); |
| 175 | array = deopt_array_literal_all_doubles(5); |
| 176 | array = deopt_array_literal_all_doubles(6); |
| 177 | assertOptimized(deopt_array_literal_all_doubles); |
| 178 | assertEquals(0.5, array[0]); |
| 179 | assertEquals(1, array[1]); |
| 180 | assertEquals(6, array[2]); |
| 181 | |
| 182 | var foo = new Object(); |
| 183 | array = deopt_array_literal_all_doubles(foo); |
| 184 | assertUnoptimized(deopt_array_literal_all_doubles); |
| 185 | assertEquals(0.5, array[0]); |
| 186 | assertEquals(1, array[1]); |
| 187 | assertEquals(foo, array[2]); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 188 | |
| 189 | (function literals_after_osr() { |
| 190 | var color = [0]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 191 | // Trigger OSR, if optimization is not disabled. |
| 192 | if (%GetOptimizationStatus(literals_after_osr) != 4) { |
| 193 | while (%GetOptimizationCount(literals_after_osr) == 0) {} |
| 194 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 195 | return [color[0]]; |
| 196 | })(); |