Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 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 --expose-gc --nostress-opt --typed-array-max-size-in-heap=2048 |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 29 | |
| 30 | var elements_kind = { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 31 | fast_smi_only : 'fast smi only elements', |
| 32 | fast : 'fast elements', |
| 33 | fast_double : 'fast double elements', |
| 34 | dictionary : 'dictionary elements', |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 35 | fixed_int32 : 'fixed int8 elements', |
| 36 | fixed_uint8 : 'fixed uint8 elements', |
| 37 | fixed_int16 : 'fixed int16 elements', |
| 38 | fixed_uint16 : 'fixed uint16 elements', |
| 39 | fixed_int32 : 'fixed int32 elements', |
| 40 | fixed_uint32 : 'fixed uint32 elements', |
| 41 | fixed_float32 : 'fixed float32 elements', |
| 42 | fixed_float64 : 'fixed float64 elements', |
| 43 | fixed_uint8_clamped : 'fixed uint8_clamped elements' |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | function getKind(obj) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 47 | if (%HasFastSmiElements(obj)) return elements_kind.fast_smi_only; |
| 48 | if (%HasFastObjectElements(obj)) return elements_kind.fast; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 49 | if (%HasFastDoubleElements(obj)) return elements_kind.fast_double; |
| 50 | if (%HasDictionaryElements(obj)) return elements_kind.dictionary; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 51 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 52 | if (%HasFixedInt8Elements(obj)) { |
| 53 | return elements_kind.fixed_int8; |
| 54 | } |
| 55 | if (%HasFixedUint8Elements(obj)) { |
| 56 | return elements_kind.fixed_uint8; |
| 57 | } |
| 58 | if (%HasFixedInt16Elements(obj)) { |
| 59 | return elements_kind.fixed_int16; |
| 60 | } |
| 61 | if (%HasFixedUint16Elements(obj)) { |
| 62 | return elements_kind.fixed_uint16; |
| 63 | } |
| 64 | if (%HasFixedInt32Elements(obj)) { |
| 65 | return elements_kind.fixed_int32; |
| 66 | } |
| 67 | if (%HasFixedUint32Elements(obj)) { |
| 68 | return elements_kind.fixed_uint32; |
| 69 | } |
| 70 | if (%HasFixedFloat32Elements(obj)) { |
| 71 | return elements_kind.fixed_float32; |
| 72 | } |
| 73 | if (%HasFixedFloat64Elements(obj)) { |
| 74 | return elements_kind.fixed_float64; |
| 75 | } |
| 76 | if (%HasFixedUint8ClampedElements(obj)) { |
| 77 | return elements_kind.fixed_uint8_clamped; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 78 | } |
| 79 | } |
| 80 | |
| 81 | function assertKind(expected, obj, name_opt) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 82 | assertEquals(expected, getKind(obj), name_opt); |
| 83 | } |
| 84 | |
| 85 | var me = {}; |
| 86 | assertKind(elements_kind.fast, me); |
| 87 | me.dance = 0xD15C0; |
| 88 | me.drink = 0xC0C0A; |
| 89 | assertKind(elements_kind.fast, me); |
| 90 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 91 | var too = [1,2,3]; |
| 92 | assertKind(elements_kind.fast_smi_only, too); |
| 93 | too.dance = 0xD15C0; |
| 94 | too.drink = 0xC0C0A; |
| 95 | assertKind(elements_kind.fast_smi_only, too); |
| 96 | |
| 97 | // Make sure the element kind transitions from smi when a non-smi is stored. |
| 98 | function test_wrapper() { |
| 99 | var you = new Array(); |
| 100 | assertKind(elements_kind.fast_smi_only, you); |
| 101 | for (var i = 0; i < 1337; i++) { |
| 102 | var val = i; |
| 103 | if (i == 1336) { |
| 104 | assertKind(elements_kind.fast_smi_only, you); |
| 105 | val = new Object(); |
| 106 | } |
| 107 | you[i] = val; |
| 108 | } |
| 109 | assertKind(elements_kind.fast, you); |
| 110 | |
| 111 | var temp = []; |
| 112 | temp[0xDECAF] = 0; |
| 113 | assertKind(elements_kind.dictionary, temp); |
| 114 | |
| 115 | var fast_double_array = new Array(0xDECAF); |
| 116 | for (var i = 0; i < 0xDECAF; i++) fast_double_array[i] = i / 2; |
| 117 | assertKind(elements_kind.fast_double, fast_double_array); |
| 118 | |
| 119 | assertKind(elements_kind.fixed_int8, new Int8Array(007)); |
| 120 | assertKind(elements_kind.fixed_uint8, new Uint8Array(007)); |
| 121 | assertKind(elements_kind.fixed_int16, new Int16Array(666)); |
| 122 | assertKind(elements_kind.fixed_uint16, new Uint16Array(42)); |
| 123 | assertKind(elements_kind.fixed_int32, new Int32Array(0xF)); |
| 124 | assertKind(elements_kind.fixed_uint32, new Uint32Array(23)); |
| 125 | assertKind(elements_kind.fixed_float32, new Float32Array(7)); |
| 126 | assertKind(elements_kind.fixed_float64, new Float64Array(0)); |
| 127 | assertKind(elements_kind.fixed_uint8_clamped, new Uint8ClampedArray(512)); |
| 128 | |
| 129 | var ab = new ArrayBuffer(128); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 130 | assertKind(elements_kind.fixed_int8, new Int8Array(ab)); |
| 131 | assertKind(elements_kind.fixed_uint8, new Uint8Array(ab)); |
| 132 | assertKind(elements_kind.fixed_int16, new Int16Array(ab)); |
| 133 | assertKind(elements_kind.fixed_uint16, new Uint16Array(ab)); |
| 134 | assertKind(elements_kind.fixed_int32, new Int32Array(ab)); |
| 135 | assertKind(elements_kind.fixed_uint32, new Uint32Array(ab)); |
| 136 | assertKind(elements_kind.fixed_float32, new Float32Array(ab)); |
| 137 | assertKind(elements_kind.fixed_float64, new Float64Array(ab)); |
| 138 | assertKind(elements_kind.fixed_uint8_clamped, new Uint8ClampedArray(ab)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 139 | |
| 140 | // Crankshaft support for smi-only array elements. |
| 141 | function monomorphic(array) { |
| 142 | assertKind(elements_kind.fast_smi_only, array); |
| 143 | for (var i = 0; i < 3; i++) { |
| 144 | array[i] = i + 10; |
| 145 | } |
| 146 | assertKind(elements_kind.fast_smi_only, array); |
| 147 | for (var i = 0; i < 3; i++) { |
| 148 | var a = array[i]; |
| 149 | assertEquals(i + 10, a); |
| 150 | } |
| 151 | } |
| 152 | var smi_only = new Array(1, 2, 3); |
| 153 | assertKind(elements_kind.fast_smi_only, smi_only); |
| 154 | for (var i = 0; i < 3; i++) monomorphic(smi_only); |
| 155 | %OptimizeFunctionOnNextCall(monomorphic); |
| 156 | monomorphic(smi_only); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 157 | } |
| 158 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 159 | // The test is called in a wrapper function to eliminate the transition learning |
| 160 | // feedback of AllocationSites. |
| 161 | test_wrapper(); |
| 162 | %ClearFunctionTypeFeedback(test_wrapper); |
| 163 | |
| 164 | %NeverOptimizeFunction(construct_smis); |
| 165 | |
| 166 | // This code exists to eliminate the learning influence of AllocationSites |
| 167 | // on the following tests. |
| 168 | var __sequence = 0; |
| 169 | function make_array_string() { |
| 170 | this.__sequence = this.__sequence + 1; |
| 171 | return "/* " + this.__sequence + " */ [0, 0, 0];" |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 172 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 173 | function make_array() { |
| 174 | return eval(make_array_string()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 175 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 176 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 177 | function construct_smis() { |
| 178 | var a = make_array(); |
| 179 | a[0] = 0; // Send the COW array map to the steak house. |
| 180 | assertKind(elements_kind.fast_smi_only, a); |
| 181 | return a; |
| 182 | } |
| 183 | %NeverOptimizeFunction(construct_doubles); |
| 184 | function construct_doubles() { |
| 185 | var a = construct_smis(); |
| 186 | a[0] = 1.5; |
| 187 | assertKind(elements_kind.fast_double, a); |
| 188 | return a; |
| 189 | } |
| 190 | %NeverOptimizeFunction(construct_objects); |
| 191 | function construct_objects() { |
| 192 | var a = construct_smis(); |
| 193 | a[0] = "one"; |
| 194 | assertKind(elements_kind.fast, a); |
| 195 | return a; |
| 196 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 197 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 198 | // Test crankshafted transition SMI->DOUBLE. |
| 199 | %NeverOptimizeFunction(convert_to_double); |
| 200 | function convert_to_double(array) { |
| 201 | array[1] = 2.5; |
| 202 | assertKind(elements_kind.fast_double, array); |
| 203 | assertEquals(2.5, array[1]); |
| 204 | } |
| 205 | var smis = construct_smis(); |
| 206 | for (var i = 0; i < 3; i++) convert_to_double(smis); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 207 | %OptimizeFunctionOnNextCall(convert_to_double); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 208 | smis = construct_smis(); |
| 209 | convert_to_double(smis); |
| 210 | // Test crankshafted transitions SMI->FAST and DOUBLE->FAST. |
| 211 | %NeverOptimizeFunction(convert_to_fast); |
| 212 | function convert_to_fast(array) { |
| 213 | array[1] = "two"; |
| 214 | assertKind(elements_kind.fast, array); |
| 215 | assertEquals("two", array[1]); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 216 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 217 | smis = construct_smis(); |
| 218 | for (var i = 0; i < 3; i++) convert_to_fast(smis); |
| 219 | var doubles = construct_doubles(); |
| 220 | for (var i = 0; i < 3; i++) convert_to_fast(doubles); |
| 221 | smis = construct_smis(); |
| 222 | doubles = construct_doubles(); |
| 223 | %OptimizeFunctionOnNextCall(convert_to_fast); |
| 224 | convert_to_fast(smis); |
| 225 | convert_to_fast(doubles); |
| 226 | // Test transition chain SMI->DOUBLE->FAST (crankshafted function will |
| 227 | // transition to FAST directly). |
| 228 | %NeverOptimizeFunction(convert_mixed); |
| 229 | function convert_mixed(array, value, kind) { |
| 230 | array[1] = value; |
| 231 | assertKind(kind, array); |
| 232 | assertEquals(value, array[1]); |
| 233 | } |
| 234 | smis = construct_smis(); |
| 235 | for (var i = 0; i < 3; i++) { |
| 236 | convert_mixed(smis, 1.5, elements_kind.fast_double); |
| 237 | } |
| 238 | doubles = construct_doubles(); |
| 239 | for (var i = 0; i < 3; i++) { |
| 240 | convert_mixed(doubles, "three", elements_kind.fast); |
| 241 | } |
| 242 | convert_mixed(construct_smis(), "three", elements_kind.fast); |
| 243 | convert_mixed(construct_doubles(), "three", elements_kind.fast); |
| 244 | %OptimizeFunctionOnNextCall(convert_mixed); |
| 245 | smis = construct_smis(); |
| 246 | doubles = construct_doubles(); |
| 247 | convert_mixed(smis, 1, elements_kind.fast); |
| 248 | convert_mixed(doubles, 1, elements_kind.fast); |
| 249 | assertTrue(%HaveSameMap(smis, doubles)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 250 | |
| 251 | // Crankshaft support for smi-only elements in dynamic array literals. |
| 252 | function get(foo) { return foo; } // Used to generate dynamic values. |
| 253 | |
| 254 | function crankshaft_test() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 255 | var a1 = [get(1), get(2), get(3)]; |
| 256 | assertKind(elements_kind.fast_smi_only, a1); |
| 257 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 258 | var a2 = new Array(get(1), get(2), get(3)); |
| 259 | assertKind(elements_kind.fast_smi_only, a2); |
| 260 | var b = [get(1), get(2), get("three")]; |
| 261 | assertKind(elements_kind.fast, b); |
| 262 | var c = [get(1), get(2), get(3.5)]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 263 | assertKind(elements_kind.fast_double, c); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 264 | } |
| 265 | for (var i = 0; i < 3; i++) { |
| 266 | crankshaft_test(); |
| 267 | } |
| 268 | %OptimizeFunctionOnNextCall(crankshaft_test); |
| 269 | crankshaft_test(); |
| 270 | |
| 271 | // Elements_kind transitions for arrays. |
| 272 | |
| 273 | // A map can have three different elements_kind transitions: SMI->DOUBLE, |
| 274 | // DOUBLE->OBJECT, and SMI->OBJECT. No matter in which order these three are |
| 275 | // created, they must always end up with the same FAST map. |
| 276 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 277 | // Preparation: create one pair of identical objects for each case. |
| 278 | var a = [1, 2, 3]; |
| 279 | var b = [1, 2, 3]; |
| 280 | assertTrue(%HaveSameMap(a, b)); |
| 281 | assertKind(elements_kind.fast_smi_only, a); |
| 282 | var c = [1, 2, 3]; |
| 283 | c["case2"] = true; |
| 284 | var d = [1, 2, 3]; |
| 285 | d["case2"] = true; |
| 286 | assertTrue(%HaveSameMap(c, d)); |
| 287 | assertFalse(%HaveSameMap(a, c)); |
| 288 | assertKind(elements_kind.fast_smi_only, c); |
| 289 | var e = [1, 2, 3]; |
| 290 | e["case3"] = true; |
| 291 | var f = [1, 2, 3]; |
| 292 | f["case3"] = true; |
| 293 | assertTrue(%HaveSameMap(e, f)); |
| 294 | assertFalse(%HaveSameMap(a, e)); |
| 295 | assertFalse(%HaveSameMap(c, e)); |
| 296 | assertKind(elements_kind.fast_smi_only, e); |
| 297 | // Case 1: SMI->DOUBLE, DOUBLE->OBJECT, SMI->OBJECT. |
| 298 | a[0] = 1.5; |
| 299 | assertKind(elements_kind.fast_double, a); |
| 300 | a[0] = "foo"; |
| 301 | assertKind(elements_kind.fast, a); |
| 302 | b[0] = "bar"; |
| 303 | assertTrue(%HaveSameMap(a, b)); |
| 304 | // Case 2: SMI->DOUBLE, SMI->OBJECT, DOUBLE->OBJECT. |
| 305 | c[0] = 1.5; |
| 306 | assertKind(elements_kind.fast_double, c); |
| 307 | assertFalse(%HaveSameMap(c, d)); |
| 308 | d[0] = "foo"; |
| 309 | assertKind(elements_kind.fast, d); |
| 310 | assertFalse(%HaveSameMap(c, d)); |
| 311 | c[0] = "bar"; |
| 312 | assertTrue(%HaveSameMap(c, d)); |
| 313 | // Case 3: SMI->OBJECT, SMI->DOUBLE, DOUBLE->OBJECT. |
| 314 | e[0] = "foo"; |
| 315 | assertKind(elements_kind.fast, e); |
| 316 | assertFalse(%HaveSameMap(e, f)); |
| 317 | f[0] = 1.5; |
| 318 | assertKind(elements_kind.fast_double, f); |
| 319 | assertFalse(%HaveSameMap(e, f)); |
| 320 | f[0] = "bar"; |
| 321 | assertKind(elements_kind.fast, f); |
| 322 | assertTrue(%HaveSameMap(e, f)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 323 | |
| 324 | // Test if Array.concat() works correctly with DOUBLE elements. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 325 | var a = [1, 2]; |
| 326 | assertKind(elements_kind.fast_smi_only, a); |
| 327 | var b = [4.5, 5.5]; |
| 328 | assertKind(elements_kind.fast_double, b); |
| 329 | var c = a.concat(b); |
| 330 | assertEquals([1, 2, 4.5, 5.5], c); |
| 331 | assertKind(elements_kind.fast_double, c); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 332 | |
| 333 | // Test that Array.push() correctly handles SMI elements. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 334 | var a = [1, 2]; |
| 335 | assertKind(elements_kind.fast_smi_only, a); |
| 336 | a.push(3, 4, 5); |
| 337 | assertKind(elements_kind.fast_smi_only, a); |
| 338 | assertEquals([1, 2, 3, 4, 5], a); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 339 | |
| 340 | // Test that Array.splice() and Array.slice() return correct ElementsKinds. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 341 | var a = ["foo", "bar"]; |
| 342 | assertKind(elements_kind.fast, a); |
| 343 | var b = a.splice(0, 1); |
| 344 | assertKind(elements_kind.fast, b); |
| 345 | var c = a.slice(0, 1); |
| 346 | assertKind(elements_kind.fast, c); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 347 | |
| 348 | // Throw away type information in the ICs for next stress run. |
| 349 | gc(); |