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| 1 // Copyright 2015 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: --harmony-simd --harmony-tostring --allow-natives-syntax |
| 29 // Flags: --noalways-opt |
| 30 |
| 31 function lanesForType(typeName) { |
| 32 // The lane count follows the first 'x' in the type name, which begins with |
| 33 // 'float', 'int', or 'bool'. |
| 34 return Number.parseInt(typeName[typeName.indexOf('x') + 1]); |
| 35 } |
| 36 |
| 37 |
| 38 function isValidSimdString(string, value, type, lanes) { |
| 39 var simdFn = SIMD[type], |
| 40 parseFn = |
| 41 type.indexOf('float') === 0 ? Number.parseFloat : Number.parseInt, |
| 42 indexOfOpenParen = string.indexOf('('); |
| 43 // Check prefix for correct type name. |
| 44 if (string.substr(0, indexOfOpenParen).toUpperCase() !== type.toUpperCase()) |
| 45 return false; |
| 46 // Remove type name and open parenthesis. |
| 47 string = string.substr(indexOfOpenParen + 1); |
| 48 var laneStrings = string.split(','); |
| 49 if (laneStrings.length !== lanes) |
| 50 return false; |
| 51 for (var i = 0; i < lanes; i++) { |
| 52 var fromString = parseFn(laneStrings[i]), |
| 53 fromValue = simdFn.extractLane(value, i); |
| 54 if (Math.abs(fromString - fromValue) > Number.EPSILON) |
| 55 return false; |
| 56 } |
| 57 return true; |
| 58 } |
| 59 |
| 60 |
| 61 // Test for structural equivalence. |
| 62 function areEquivalent(type, lanes, a, b) { |
| 63 var simdFn = SIMD[type]; |
| 64 for (var i = 0; i < lanes; i++) { |
| 65 if (simdFn.extractLane(a, i) !== simdFn.extractLane(b, i)) |
| 66 return false; |
| 67 } |
| 68 return true; |
| 69 } |
| 70 |
| 71 |
| 72 // Tests for the global SIMD object. |
| 73 function TestSIMDObject() { |
| 74 assertSame(typeof SIMD, 'object'); |
| 75 assertSame(SIMD.constructor, Object); |
| 76 assertSame(Object.getPrototypeOf(SIMD), Object.prototype); |
| 77 assertSame(SIMD + "", "[object SIMD]"); |
| 78 } |
| 79 TestSIMDObject() |
| 80 |
| 81 // TestConstructor populates this with interesting values for the other tests. |
| 82 var values; |
| 83 |
| 84 // Test different forms of constructor calls. This test populates 'values' with |
| 85 // a variety of SIMD values as a side effect, which are used by other tests. |
| 86 function TestConstructor(type, lanes) { |
| 87 var simdFn = SIMD[type]; |
| 88 assertFalse(Object === simdFn.prototype.constructor) |
| 89 assertFalse(simdFn === Object.prototype.constructor) |
| 90 assertSame(simdFn, simdFn.prototype.constructor) |
| 91 |
| 92 values = [] |
| 93 |
| 94 // The constructor expects values for all lanes. |
| 95 switch (type) { |
| 96 case 'float32x4': |
| 97 // The constructor expects values for all lanes. |
| 98 assertThrows(function () { simdFn() }, TypeError) |
| 99 assertThrows(function () { simdFn(0) }, TypeError) |
| 100 assertThrows(function () { simdFn(0, 1) }, TypeError) |
| 101 assertThrows(function () { simdFn(0, 1, 2) }, TypeError) |
| 102 |
| 103 values.push(simdFn(1, 2, 3, 4)) |
| 104 values.push(simdFn(1, 2, 3, 4)) // test structural equivalence |
| 105 values.push(simdFn(-0, NaN, 0, 0.5)) |
| 106 values.push(simdFn(-0, NaN, 0, 0.5)) // test structural equivalence |
| 107 values.push(simdFn(3, 2, 1, 0)) |
| 108 values.push(simdFn(0, 0, 0, 0)) |
| 109 break |
| 110 } |
| 111 for (var i in values) { |
| 112 assertSame(simdFn, values[i].__proto__.constructor) |
| 113 assertSame(simdFn, Object(values[i]).__proto__.constructor) |
| 114 assertSame(simdFn.prototype, values[i].__proto__) |
| 115 assertSame(simdFn.prototype, Object(values[i]).__proto__) |
| 116 } |
| 117 } |
| 118 |
| 119 |
| 120 function TestType(type, lanes) { |
| 121 for (var i in values) { |
| 122 assertEquals(type, typeof values[i]) |
| 123 assertTrue(typeof values[i] === type) |
| 124 assertTrue(typeof Object(values[i]) === 'object') |
| 125 assertEquals(null, %_ClassOf(values[i])) |
| 126 assertEquals("Float32x4", %_ClassOf(Object(values[i]))) |
| 127 } |
| 128 } |
| 129 |
| 130 |
| 131 function TestPrototype(type, lanes) { |
| 132 var simdFn = SIMD[type]; |
| 133 assertSame(Object.prototype, simdFn.prototype.__proto__) |
| 134 for (var i in values) { |
| 135 assertSame(simdFn.prototype, values[i].__proto__) |
| 136 assertSame(simdFn.prototype, Object(values[i]).__proto__) |
| 137 } |
| 138 } |
| 139 |
| 140 |
| 141 function TestValueOf(type, lanes) { |
| 142 var simdFn = SIMD[type]; |
| 143 for (var i in values) { |
| 144 assertTrue(values[i] === Object(values[i]).valueOf()) |
| 145 assertTrue(values[i] === values[i].valueOf()) |
| 146 assertTrue(simdFn.prototype.valueOf.call(Object(values[i])) === values[i]) |
| 147 assertTrue(simdFn.prototype.valueOf.call(values[i]) === values[i]) |
| 148 } |
| 149 } |
| 150 |
| 151 |
| 152 function TestGet(type, lanes) { |
| 153 var simdFn = SIMD[type]; |
| 154 for (var i in values) { |
| 155 assertEquals(undefined, values[i].a) |
| 156 assertEquals(undefined, values[i]["a" + "b"]) |
| 157 assertEquals(undefined, values[i]["" + "1"]) |
| 158 assertEquals(undefined, values[i][42]) |
| 159 } |
| 160 } |
| 161 |
| 162 |
| 163 function TestToBoolean(type, lanes) { |
| 164 for (var i in values) { |
| 165 assertTrue(Boolean(Object(values[i]))) |
| 166 assertFalse(!Object(values[i])) |
| 167 assertTrue(Boolean(values[i]).valueOf()) |
| 168 assertFalse(!values[i]) |
| 169 assertTrue(!!values[i]) |
| 170 assertTrue(values[i] && true) |
| 171 assertFalse(!values[i] && false) |
| 172 assertTrue(!values[i] || true) |
| 173 assertEquals(1, values[i] ? 1 : 2) |
| 174 assertEquals(2, !values[i] ? 1 : 2) |
| 175 if (!values[i]) assertUnreachable(); |
| 176 if (values[i]) {} else assertUnreachable(); |
| 177 } |
| 178 } |
| 179 |
| 180 |
| 181 function TestToString(type, lanes) { |
| 182 var simdFn = SIMD[type]; |
| 183 for (var i in values) { |
| 184 assertEquals(values[i].toString(), String(values[i])) |
| 185 assertTrue(isValidSimdString(values[i].toString(), values[i], type, lanes)) |
| 186 assertTrue( |
| 187 isValidSimdString(Object(values[i]).toString(), values[i], type, lanes)) |
| 188 assertTrue(isValidSimdString( |
| 189 simdFn.prototype.toString.call(values[i]), values[i], type, lanes)) |
| 190 } |
| 191 } |
| 192 |
| 193 |
| 194 function TestToNumber(type, lanes) { |
| 195 for (var i in values) { |
| 196 assertThrows(function() { Number(Object(values[i])) }, TypeError) |
| 197 assertThrows(function() { +Object(values[i]) }, TypeError) |
| 198 assertThrows(function() { Number(values[i]) }, TypeError) |
| 199 assertThrows(function() { values[i] + 0 }, TypeError) |
| 200 } |
| 201 } |
| 202 |
| 203 |
| 204 function TestEquality(type, lanes) { |
| 205 // Every SIMD value should equal itself, and non-strictly equal its wrapper. |
| 206 for (var i in values) { |
| 207 assertSame(values[i], values[i]) |
| 208 assertEquals(values[i], values[i]) |
| 209 assertTrue(Object.is(values[i], values[i])) |
| 210 assertTrue(values[i] === values[i]) |
| 211 assertTrue(values[i] == values[i]) |
| 212 assertFalse(values[i] === Object(values[i])) |
| 213 assertFalse(Object(values[i]) === values[i]) |
| 214 assertFalse(values[i] == Object(values[i])) |
| 215 assertFalse(Object(values[i]) == values[i]) |
| 216 assertTrue(values[i] === values[i].valueOf()) |
| 217 assertTrue(values[i].valueOf() === values[i]) |
| 218 assertTrue(values[i] == values[i].valueOf()) |
| 219 assertTrue(values[i].valueOf() == values[i]) |
| 220 assertFalse(Object(values[i]) === Object(values[i])) |
| 221 assertEquals(Object(values[i]).valueOf(), Object(values[i]).valueOf()) |
| 222 } |
| 223 |
| 224 // Test structural equivalence. |
| 225 for (var i = 0; i < values.length; i++) { |
| 226 for (var j = i + 1; j < values.length; j++) { |
| 227 var a = values[i], b = values[j], |
| 228 equivalent = areEquivalent(type, lanes, a, b); |
| 229 assertSame(equivalent, a == b); |
| 230 assertSame(equivalent, a === b); |
| 231 } |
| 232 } |
| 233 |
| 234 // SIMD values should not be equal to any other kind of object. |
| 235 var others = [347, 1.275, NaN, "string", null, undefined, {}, function() {}] |
| 236 for (var i in values) { |
| 237 for (var j in others) { |
| 238 assertFalse(values[i] === others[j]) |
| 239 assertFalse(others[j] === values[i]) |
| 240 assertFalse(values[i] == others[j]) |
| 241 assertFalse(others[j] == values[i]) |
| 242 } |
| 243 } |
| 244 } |
| 245 |
| 246 |
| 247 function TestComparison(type, lanes) { |
| 248 var a = values[0], b = values[1]; |
| 249 |
| 250 function lt() { a < b; } |
| 251 function gt() { a > b; } |
| 252 function le() { a <= b; } |
| 253 function ge() { a >= b; } |
| 254 function lt_same() { a < a; } |
| 255 function gt_same() { a > a; } |
| 256 function le_same() { a <= a; } |
| 257 function ge_same() { a >= a; } |
| 258 |
| 259 var throwFuncs = [lt, gt, le, ge, lt_same, gt_same, le_same, ge_same]; |
| 260 |
| 261 for (var f of throwFuncs) { |
| 262 assertThrows(f, TypeError); |
| 263 %OptimizeFunctionOnNextCall(f); |
| 264 assertThrows(f, TypeError); |
| 265 assertThrows(f, TypeError); |
| 266 } |
| 267 } |
| 268 |
| 269 |
| 270 // Test SIMD value wrapping/boxing over non-builtins. |
| 271 function TestCall(type, lanes) { |
| 272 var simdFn = SIMD[type]; |
| 273 simdFn.prototype.getThisProto = function () { |
| 274 return Object.getPrototypeOf(this); |
| 275 } |
| 276 for (var i in values) { |
| 277 assertTrue(values[i].getThisProto() === simdFn.prototype) |
| 278 } |
| 279 } |
| 280 |
| 281 |
| 282 function TestSIMDTypes() { |
| 283 var types = [ 'float32x4' ]; |
| 284 for (var i = 0; i < types.length; ++i) { |
| 285 var type = types[i], |
| 286 lanes = lanesForType(type); |
| 287 TestConstructor(type, lanes); |
| 288 TestType(type, lanes); |
| 289 TestPrototype(type, lanes); |
| 290 TestValueOf(type, lanes); |
| 291 TestGet(type, lanes); |
| 292 TestToBoolean(type, lanes); |
| 293 TestToString(type, lanes); |
| 294 TestToNumber(type, lanes); |
| 295 TestEquality(type, lanes); |
| 296 TestComparison(type, lanes); |
| 297 TestCall(type, lanes); |
| 298 } |
| 299 } |
| 300 TestSIMDTypes() |
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