| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 part of ssa; | |
| 6 | |
| 7 /** | |
| 8 * [InvokeDynamicSpecializer] and its subclasses are helpers to | |
| 9 * optimize intercepted dynamic calls. It knows what input types | |
| 10 * would be beneficial for performance, and how to change a invoke | |
| 11 * dynamic to a builtin instruction (e.g. HIndex, HBitNot). | |
| 12 */ | |
| 13 class InvokeDynamicSpecializer { | |
| 14 const InvokeDynamicSpecializer(); | |
| 15 | |
| 16 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 17 Compiler compiler) { | |
| 18 Selector selector = instruction.selector; | |
| 19 return TypeMaskFactory.inferredTypeForSelector(selector, compiler); | |
| 20 } | |
| 21 | |
| 22 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 23 Compiler compiler) { | |
| 24 return null; | |
| 25 } | |
| 26 | |
| 27 Operation operation(ConstantSystem constantSystem) => null; | |
| 28 | |
| 29 static InvokeDynamicSpecializer lookupSpecializer(Selector selector) { | |
| 30 if (selector.kind == SelectorKind.INDEX) { | |
| 31 return selector.name == '[]' | |
| 32 ? const IndexSpecializer() | |
| 33 : const IndexAssignSpecializer(); | |
| 34 } else if (selector.kind == SelectorKind.OPERATOR) { | |
| 35 if (selector.name == 'unary-') { | |
| 36 return const UnaryNegateSpecializer(); | |
| 37 } else if (selector.name == '~') { | |
| 38 return const BitNotSpecializer(); | |
| 39 } else if (selector.name == '+') { | |
| 40 return const AddSpecializer(); | |
| 41 } else if (selector.name == '-') { | |
| 42 return const SubtractSpecializer(); | |
| 43 } else if (selector.name == '*') { | |
| 44 return const MultiplySpecializer(); | |
| 45 } else if (selector.name == '/') { | |
| 46 return const DivideSpecializer(); | |
| 47 } else if (selector.name == '~/') { | |
| 48 return const TruncatingDivideSpecializer(); | |
| 49 } else if (selector.name == '%') { | |
| 50 return const ModuloSpecializer(); | |
| 51 } else if (selector.name == '>>') { | |
| 52 return const ShiftRightSpecializer(); | |
| 53 } else if (selector.name == '<<') { | |
| 54 return const ShiftLeftSpecializer(); | |
| 55 } else if (selector.name == '&') { | |
| 56 return const BitAndSpecializer(); | |
| 57 } else if (selector.name == '|') { | |
| 58 return const BitOrSpecializer(); | |
| 59 } else if (selector.name == '^') { | |
| 60 return const BitXorSpecializer(); | |
| 61 } else if (selector.name == '==') { | |
| 62 return const EqualsSpecializer(); | |
| 63 } else if (selector.name == '<') { | |
| 64 return const LessSpecializer(); | |
| 65 } else if (selector.name == '<=') { | |
| 66 return const LessEqualSpecializer(); | |
| 67 } else if (selector.name == '>') { | |
| 68 return const GreaterSpecializer(); | |
| 69 } else if (selector.name == '>=') { | |
| 70 return const GreaterEqualSpecializer(); | |
| 71 } | |
| 72 } | |
| 73 return const InvokeDynamicSpecializer(); | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 class IndexAssignSpecializer extends InvokeDynamicSpecializer { | |
| 78 const IndexAssignSpecializer(); | |
| 79 | |
| 80 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 81 Compiler compiler) { | |
| 82 if (instruction.inputs[1].isMutableIndexable(compiler)) { | |
| 83 if (!instruction.inputs[2].isInteger(compiler) | |
| 84 && compiler.enableTypeAssertions) { | |
| 85 // We want the right checked mode error. | |
| 86 return null; | |
| 87 } | |
| 88 return new HIndexAssign(instruction.inputs[1], | |
| 89 instruction.inputs[2], | |
| 90 instruction.inputs[3], | |
| 91 instruction.selector); | |
| 92 } | |
| 93 return null; | |
| 94 } | |
| 95 } | |
| 96 | |
| 97 class IndexSpecializer extends InvokeDynamicSpecializer { | |
| 98 const IndexSpecializer(); | |
| 99 | |
| 100 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 101 Compiler compiler) { | |
| 102 if (!instruction.inputs[1].isIndexablePrimitive(compiler)) return null; | |
| 103 if (!instruction.inputs[2].isInteger(compiler) | |
| 104 && compiler.enableTypeAssertions) { | |
| 105 // We want the right checked mode error. | |
| 106 return null; | |
| 107 } | |
| 108 TypeMask receiverType = | |
| 109 instruction.getDartReceiver(compiler).instructionType; | |
| 110 Selector refined = new TypedSelector(receiverType, instruction.selector, | |
| 111 compiler.world); | |
| 112 TypeMask type = TypeMaskFactory.inferredTypeForSelector(refined, compiler); | |
| 113 return new HIndex( | |
| 114 instruction.inputs[1], instruction.inputs[2], | |
| 115 instruction.selector, type); | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 class BitNotSpecializer extends InvokeDynamicSpecializer { | |
| 120 const BitNotSpecializer(); | |
| 121 | |
| 122 UnaryOperation operation(ConstantSystem constantSystem) { | |
| 123 return constantSystem.bitNot; | |
| 124 } | |
| 125 | |
| 126 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 127 Compiler compiler) { | |
| 128 // All bitwise operations on primitive types either produce an | |
| 129 // integer or throw an error. | |
| 130 JavaScriptBackend backend = compiler.backend; | |
| 131 if (instruction.inputs[1].isPrimitiveOrNull(compiler)) { | |
| 132 return backend.uint32Type; | |
| 133 } | |
| 134 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 135 } | |
| 136 | |
| 137 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 138 Compiler compiler) { | |
| 139 JavaScriptBackend backend = compiler.backend; | |
| 140 HInstruction input = instruction.inputs[1]; | |
| 141 if (input.isNumber(compiler)) { | |
| 142 return new HBitNot(input, instruction.selector, | |
| 143 computeTypeFromInputTypes(instruction, compiler)); | |
| 144 } | |
| 145 return null; | |
| 146 } | |
| 147 } | |
| 148 | |
| 149 class UnaryNegateSpecializer extends InvokeDynamicSpecializer { | |
| 150 const UnaryNegateSpecializer(); | |
| 151 | |
| 152 UnaryOperation operation(ConstantSystem constantSystem) { | |
| 153 return constantSystem.negate; | |
| 154 } | |
| 155 | |
| 156 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 157 Compiler compiler) { | |
| 158 TypeMask operandType = instruction.inputs[1].instructionType; | |
| 159 if (instruction.inputs[1].isNumberOrNull(compiler)) return operandType; | |
| 160 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 161 } | |
| 162 | |
| 163 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 164 Compiler compiler) { | |
| 165 HInstruction input = instruction.inputs[1]; | |
| 166 if (input.isNumber(compiler)) { | |
| 167 return new HNegate(input, instruction.selector, input.instructionType); | |
| 168 } | |
| 169 return null; | |
| 170 } | |
| 171 } | |
| 172 | |
| 173 abstract class BinaryArithmeticSpecializer extends InvokeDynamicSpecializer { | |
| 174 const BinaryArithmeticSpecializer(); | |
| 175 | |
| 176 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 177 Compiler compiler) { | |
| 178 HInstruction left = instruction.inputs[1]; | |
| 179 HInstruction right = instruction.inputs[2]; | |
| 180 JavaScriptBackend backend = compiler.backend; | |
| 181 if (left.isIntegerOrNull(compiler) && right.isIntegerOrNull(compiler)) { | |
| 182 return backend.intType; | |
| 183 } | |
| 184 if (left.isNumberOrNull(compiler)) { | |
| 185 if (left.isDoubleOrNull(compiler) || right.isDoubleOrNull(compiler)) { | |
| 186 return backend.doubleType; | |
| 187 } | |
| 188 return backend.numType; | |
| 189 } | |
| 190 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 191 } | |
| 192 | |
| 193 bool isBuiltin(HInvokeDynamic instruction, Compiler compiler) { | |
| 194 return instruction.inputs[1].isNumber(compiler) | |
| 195 && instruction.inputs[2].isNumber(compiler); | |
| 196 } | |
| 197 | |
| 198 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 199 Compiler compiler) { | |
| 200 if (isBuiltin(instruction, compiler)) { | |
| 201 HInstruction builtin = newBuiltinVariant(instruction, compiler); | |
| 202 if (builtin != null) return builtin; | |
| 203 // Even if there is no builtin equivalent instruction, we know | |
| 204 // the instruction does not have any side effect, and that it | |
| 205 // can be GVN'ed. | |
| 206 clearAllSideEffects(instruction); | |
| 207 } | |
| 208 return null; | |
| 209 } | |
| 210 | |
| 211 void clearAllSideEffects(HInstruction instruction) { | |
| 212 instruction.sideEffects.clearAllSideEffects(); | |
| 213 instruction.sideEffects.clearAllDependencies(); | |
| 214 instruction.setUseGvn(); | |
| 215 } | |
| 216 | |
| 217 bool inputsArePositiveIntegers(HInstruction instruction, Compiler compiler) { | |
| 218 HInstruction left = instruction.inputs[1]; | |
| 219 HInstruction right = instruction.inputs[2]; | |
| 220 JavaScriptBackend backend = compiler.backend; | |
| 221 return left.isPositiveIntegerOrNull(compiler) | |
| 222 && right.isPositiveIntegerOrNull(compiler); | |
| 223 } | |
| 224 | |
| 225 HInstruction newBuiltinVariant(HInvokeDynamic instruction, Compiler compiler); | |
| 226 | |
| 227 Selector renameToOptimizedSelector(String name, | |
| 228 Selector selector, | |
| 229 Compiler compiler) { | |
| 230 if (selector.name == name) return selector; | |
| 231 JavaScriptBackend backend = compiler.backend; | |
| 232 Selector newSelector = new Selector( | |
| 233 SelectorKind.CALL, name, backend.interceptorsLibrary, | |
| 234 selector.argumentCount); | |
| 235 return selector.mask == null | |
| 236 ? newSelector | |
| 237 : new TypedSelector(selector.mask, newSelector, compiler.world); | |
| 238 } | |
| 239 } | |
| 240 | |
| 241 class AddSpecializer extends BinaryArithmeticSpecializer { | |
| 242 const AddSpecializer(); | |
| 243 | |
| 244 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 245 Compiler compiler) { | |
| 246 if (inputsArePositiveIntegers(instruction, compiler)) { | |
| 247 JavaScriptBackend backend = compiler.backend; | |
| 248 return backend.positiveIntType; | |
| 249 } | |
| 250 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 251 } | |
| 252 | |
| 253 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 254 return constantSystem.add; | |
| 255 } | |
| 256 | |
| 257 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 258 Compiler compiler) { | |
| 259 return new HAdd( | |
| 260 instruction.inputs[1], instruction.inputs[2], | |
| 261 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 262 } | |
| 263 } | |
| 264 | |
| 265 class DivideSpecializer extends BinaryArithmeticSpecializer { | |
| 266 const DivideSpecializer(); | |
| 267 | |
| 268 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 269 return constantSystem.divide; | |
| 270 } | |
| 271 | |
| 272 TypeMask computeTypeFromInputTypes(HInstruction instruction, | |
| 273 Compiler compiler) { | |
| 274 HInstruction left = instruction.inputs[1]; | |
| 275 JavaScriptBackend backend = compiler.backend; | |
| 276 if (left.isNumberOrNull(compiler)) { | |
| 277 return backend.doubleType; | |
| 278 } | |
| 279 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 280 } | |
| 281 | |
| 282 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 283 Compiler compiler) { | |
| 284 JavaScriptBackend backend = compiler.backend; | |
| 285 return new HDivide( | |
| 286 instruction.inputs[1], instruction.inputs[2], | |
| 287 instruction.selector, backend.doubleType); | |
| 288 } | |
| 289 } | |
| 290 | |
| 291 class ModuloSpecializer extends BinaryArithmeticSpecializer { | |
| 292 const ModuloSpecializer(); | |
| 293 | |
| 294 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 295 Compiler compiler) { | |
| 296 if (inputsArePositiveIntegers(instruction, compiler)) { | |
| 297 JavaScriptBackend backend = compiler.backend; | |
| 298 return backend.positiveIntType; | |
| 299 } | |
| 300 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 301 } | |
| 302 | |
| 303 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 304 return constantSystem.modulo; | |
| 305 } | |
| 306 | |
| 307 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 308 Compiler compiler) { | |
| 309 // Modulo cannot be mapped to the native operator (different semantics). | |
| 310 return null; | |
| 311 } | |
| 312 } | |
| 313 | |
| 314 class MultiplySpecializer extends BinaryArithmeticSpecializer { | |
| 315 const MultiplySpecializer(); | |
| 316 | |
| 317 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 318 return constantSystem.multiply; | |
| 319 } | |
| 320 | |
| 321 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 322 Compiler compiler) { | |
| 323 if (inputsArePositiveIntegers(instruction, compiler)) { | |
| 324 JavaScriptBackend backend = compiler.backend; | |
| 325 return backend.positiveIntType; | |
| 326 } | |
| 327 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 328 } | |
| 329 | |
| 330 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 331 Compiler compiler) { | |
| 332 return new HMultiply( | |
| 333 instruction.inputs[1], instruction.inputs[2], | |
| 334 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 class SubtractSpecializer extends BinaryArithmeticSpecializer { | |
| 339 const SubtractSpecializer(); | |
| 340 | |
| 341 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 342 return constantSystem.subtract; | |
| 343 } | |
| 344 | |
| 345 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 346 Compiler compiler) { | |
| 347 return new HSubtract( | |
| 348 instruction.inputs[1], instruction.inputs[2], | |
| 349 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 350 } | |
| 351 } | |
| 352 | |
| 353 class TruncatingDivideSpecializer extends BinaryArithmeticSpecializer { | |
| 354 const TruncatingDivideSpecializer(); | |
| 355 | |
| 356 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 357 return constantSystem.truncatingDivide; | |
| 358 } | |
| 359 | |
| 360 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 361 Compiler compiler) { | |
| 362 if (inputsArePositiveIntegers(instruction, compiler)) { | |
| 363 JavaScriptBackend backend = compiler.backend; | |
| 364 return backend.positiveIntType; | |
| 365 } | |
| 366 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 367 } | |
| 368 | |
| 369 bool isNotZero(HInstruction instruction, Compiler compiler) { | |
| 370 if (!instruction.isConstantInteger()) return false; | |
| 371 HConstant rightConstant = instruction; | |
| 372 IntConstantValue intConstant = rightConstant.constant; | |
| 373 int count = intConstant.primitiveValue; | |
| 374 return count != 0; | |
| 375 } | |
| 376 | |
| 377 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 378 Compiler compiler) { | |
| 379 HInstruction left = instruction.inputs[1]; | |
| 380 HInstruction right = instruction.inputs[2]; | |
| 381 if (isBuiltin(instruction, compiler)) { | |
| 382 if (right.isPositiveInteger(compiler) && isNotZero(right, compiler)) { | |
| 383 if (left.isUInt31(compiler)) { | |
| 384 return newBuiltinVariant(instruction, compiler); | |
| 385 } | |
| 386 // We can call _tdivFast because the rhs is a 32bit integer | |
| 387 // and not 0, nor -1. | |
| 388 instruction.selector = renameToOptimizedSelector( | |
| 389 '_tdivFast', instruction.selector, compiler); | |
| 390 } | |
| 391 clearAllSideEffects(instruction); | |
| 392 } | |
| 393 return null; | |
| 394 } | |
| 395 | |
| 396 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 397 Compiler compiler) { | |
| 398 return new HTruncatingDivide( | |
| 399 instruction.inputs[1], instruction.inputs[2], | |
| 400 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 401 } | |
| 402 } | |
| 403 | |
| 404 abstract class BinaryBitOpSpecializer extends BinaryArithmeticSpecializer { | |
| 405 const BinaryBitOpSpecializer(); | |
| 406 | |
| 407 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 408 Compiler compiler) { | |
| 409 // All bitwise operations on primitive types either produce an | |
| 410 // integer or throw an error. | |
| 411 HInstruction left = instruction.inputs[1]; | |
| 412 JavaScriptBackend backend = compiler.backend; | |
| 413 if (left.isPrimitiveOrNull(compiler)) { | |
| 414 return backend.uint32Type; | |
| 415 } | |
| 416 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 417 } | |
| 418 | |
| 419 bool argumentLessThan32(HInstruction instruction) { | |
| 420 if (!instruction.isConstantInteger()) return false; | |
| 421 HConstant rightConstant = instruction; | |
| 422 IntConstantValue intConstant = rightConstant.constant; | |
| 423 int count = intConstant.primitiveValue; | |
| 424 return count >= 0 && count <= 31; | |
| 425 } | |
| 426 | |
| 427 bool isPositive(HInstruction instruction, Compiler compiler) { | |
| 428 // TODO: We should use the value range analysis. Currently, ranges | |
| 429 // are discarded just after the analysis. | |
| 430 return instruction.isPositiveInteger(compiler); | |
| 431 } | |
| 432 } | |
| 433 | |
| 434 class ShiftLeftSpecializer extends BinaryBitOpSpecializer { | |
| 435 const ShiftLeftSpecializer(); | |
| 436 | |
| 437 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 438 return constantSystem.shiftLeft; | |
| 439 } | |
| 440 | |
| 441 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 442 Compiler compiler) { | |
| 443 HInstruction left = instruction.inputs[1]; | |
| 444 HInstruction right = instruction.inputs[2]; | |
| 445 if (left.isNumber(compiler)) { | |
| 446 if (argumentLessThan32(right)) { | |
| 447 return newBuiltinVariant(instruction, compiler); | |
| 448 } | |
| 449 // Even if there is no builtin equivalent instruction, we know | |
| 450 // the instruction does not have any side effect, and that it | |
| 451 // can be GVN'ed. | |
| 452 clearAllSideEffects(instruction); | |
| 453 Selector selector = instruction.selector; | |
| 454 if (isPositive(right, compiler)) { | |
| 455 instruction.selector = renameToOptimizedSelector( | |
| 456 '_shlPositive', instruction.selector, compiler); | |
| 457 } | |
| 458 } | |
| 459 return null; | |
| 460 } | |
| 461 | |
| 462 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 463 Compiler compiler) { | |
| 464 JavaScriptBackend backend = compiler.backend; | |
| 465 return new HShiftLeft( | |
| 466 instruction.inputs[1], instruction.inputs[2], | |
| 467 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 468 } | |
| 469 } | |
| 470 | |
| 471 class ShiftRightSpecializer extends BinaryBitOpSpecializer { | |
| 472 const ShiftRightSpecializer(); | |
| 473 | |
| 474 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 475 Compiler compiler) { | |
| 476 HInstruction left = instruction.inputs[1]; | |
| 477 HInstruction right = instruction.inputs[2]; | |
| 478 JavaScriptBackend backend = compiler.backend; | |
| 479 if (left.isUInt32(compiler)) return left.instructionType; | |
| 480 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 481 } | |
| 482 | |
| 483 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 484 Compiler compiler) { | |
| 485 HInstruction left = instruction.inputs[1]; | |
| 486 HInstruction right = instruction.inputs[2]; | |
| 487 if (left.isNumber(compiler)) { | |
| 488 if (argumentLessThan32(right) && isPositive(left, compiler)) { | |
| 489 return newBuiltinVariant(instruction, compiler); | |
| 490 } | |
| 491 // Even if there is no builtin equivalent instruction, we know | |
| 492 // the instruction does not have any side effect, and that it | |
| 493 // can be GVN'ed. | |
| 494 clearAllSideEffects(instruction); | |
| 495 if (isPositive(right, compiler) && isPositive(left, compiler)) { | |
| 496 instruction.selector = renameToOptimizedSelector( | |
| 497 '_shrBothPositive', instruction.selector, compiler); | |
| 498 } else if (isPositive(left, compiler) && right.isNumber(compiler)) { | |
| 499 instruction.selector = renameToOptimizedSelector( | |
| 500 '_shrReceiverPositive', instruction.selector, compiler); | |
| 501 } else if (isPositive(right, compiler)) { | |
| 502 instruction.selector = renameToOptimizedSelector( | |
| 503 '_shrOtherPositive', instruction.selector, compiler); | |
| 504 } | |
| 505 } | |
| 506 return null; | |
| 507 } | |
| 508 | |
| 509 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 510 Compiler compiler) { | |
| 511 JavaScriptBackend backend = compiler.backend; | |
| 512 return new HShiftRight( | |
| 513 instruction.inputs[1], instruction.inputs[2], | |
| 514 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 515 } | |
| 516 | |
| 517 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 518 return constantSystem.shiftRight; | |
| 519 } | |
| 520 } | |
| 521 | |
| 522 class BitOrSpecializer extends BinaryBitOpSpecializer { | |
| 523 const BitOrSpecializer(); | |
| 524 | |
| 525 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 526 return constantSystem.bitOr; | |
| 527 } | |
| 528 | |
| 529 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 530 Compiler compiler) { | |
| 531 HInstruction left = instruction.inputs[1]; | |
| 532 HInstruction right = instruction.inputs[2]; | |
| 533 JavaScriptBackend backend = compiler.backend; | |
| 534 if (left.isUInt31(compiler) && right.isUInt31(compiler)) { | |
| 535 return backend.uint31Type; | |
| 536 } | |
| 537 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 538 } | |
| 539 | |
| 540 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 541 Compiler compiler) { | |
| 542 JavaScriptBackend backend = compiler.backend; | |
| 543 return new HBitOr( | |
| 544 instruction.inputs[1], instruction.inputs[2], | |
| 545 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 546 } | |
| 547 } | |
| 548 | |
| 549 class BitAndSpecializer extends BinaryBitOpSpecializer { | |
| 550 const BitAndSpecializer(); | |
| 551 | |
| 552 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 553 return constantSystem.bitAnd; | |
| 554 } | |
| 555 | |
| 556 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 557 Compiler compiler) { | |
| 558 HInstruction left = instruction.inputs[1]; | |
| 559 HInstruction right = instruction.inputs[2]; | |
| 560 JavaScriptBackend backend = compiler.backend; | |
| 561 if (left.isUInt31(compiler) || right.isUInt31(compiler)) { | |
| 562 return backend.uint31Type; | |
| 563 } | |
| 564 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 565 } | |
| 566 | |
| 567 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 568 Compiler compiler) { | |
| 569 JavaScriptBackend backend = compiler.backend; | |
| 570 return new HBitAnd( | |
| 571 instruction.inputs[1], instruction.inputs[2], | |
| 572 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 class BitXorSpecializer extends BinaryBitOpSpecializer { | |
| 577 const BitXorSpecializer(); | |
| 578 | |
| 579 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 580 return constantSystem.bitXor; | |
| 581 } | |
| 582 | |
| 583 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 584 Compiler compiler) { | |
| 585 HInstruction left = instruction.inputs[1]; | |
| 586 HInstruction right = instruction.inputs[2]; | |
| 587 JavaScriptBackend backend = compiler.backend; | |
| 588 if (left.isUInt31(compiler) && right.isUInt31(compiler)) { | |
| 589 return backend.uint31Type; | |
| 590 } | |
| 591 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 592 } | |
| 593 | |
| 594 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 595 Compiler compiler) { | |
| 596 JavaScriptBackend backend = compiler.backend; | |
| 597 return new HBitXor( | |
| 598 instruction.inputs[1], instruction.inputs[2], | |
| 599 instruction.selector, computeTypeFromInputTypes(instruction, compiler)); | |
| 600 } | |
| 601 } | |
| 602 | |
| 603 abstract class RelationalSpecializer extends InvokeDynamicSpecializer { | |
| 604 const RelationalSpecializer(); | |
| 605 | |
| 606 TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction, | |
| 607 Compiler compiler) { | |
| 608 JavaScriptBackend backend = compiler.backend; | |
| 609 if (instruction.inputs[1].isPrimitiveOrNull(compiler)) { | |
| 610 return backend.boolType; | |
| 611 } | |
| 612 return super.computeTypeFromInputTypes(instruction, compiler); | |
| 613 } | |
| 614 | |
| 615 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 616 Compiler compiler) { | |
| 617 HInstruction left = instruction.inputs[1]; | |
| 618 HInstruction right = instruction.inputs[2]; | |
| 619 if (left.isNumber(compiler) && right.isNumber(compiler)) { | |
| 620 return newBuiltinVariant(instruction, compiler); | |
| 621 } | |
| 622 return null; | |
| 623 } | |
| 624 | |
| 625 HInstruction newBuiltinVariant(HInvokeDynamic instruction, Compiler compiler); | |
| 626 } | |
| 627 | |
| 628 class EqualsSpecializer extends RelationalSpecializer { | |
| 629 const EqualsSpecializer(); | |
| 630 | |
| 631 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | |
| 632 Compiler compiler) { | |
| 633 HInstruction left = instruction.inputs[1]; | |
| 634 HInstruction right = instruction.inputs[2]; | |
| 635 TypeMask instructionType = left.instructionType; | |
| 636 if (right.isConstantNull() || left.isPrimitiveOrNull(compiler)) { | |
| 637 return newBuiltinVariant(instruction, compiler); | |
| 638 } | |
| 639 World world = compiler.world; | |
| 640 Selector selector = | |
| 641 new TypedSelector(instructionType, instruction.selector, world); | |
| 642 JavaScriptBackend backend = compiler.backend; | |
| 643 Iterable<Element> matches = world.allFunctions.filter(selector); | |
| 644 // This test relies the on `Object.==` and `Interceptor.==` always being | |
| 645 // implemented because if the selector matches by subtype, it still will be | |
| 646 // a regular object or an interceptor. | |
| 647 if (matches.every(backend.isDefaultEqualityImplementation)) { | |
| 648 return newBuiltinVariant(instruction, compiler); | |
| 649 } | |
| 650 return null; | |
| 651 } | |
| 652 | |
| 653 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 654 return constantSystem.equal; | |
| 655 } | |
| 656 | |
| 657 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 658 Compiler compiler) { | |
| 659 JavaScriptBackend backend = compiler.backend; | |
| 660 return new HIdentity( | |
| 661 instruction.inputs[1], instruction.inputs[2], | |
| 662 instruction.selector, backend.boolType); | |
| 663 } | |
| 664 } | |
| 665 | |
| 666 class LessSpecializer extends RelationalSpecializer { | |
| 667 const LessSpecializer(); | |
| 668 | |
| 669 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 670 return constantSystem.less; | |
| 671 } | |
| 672 | |
| 673 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 674 Compiler compiler) { | |
| 675 JavaScriptBackend backend = compiler.backend; | |
| 676 return new HLess( | |
| 677 instruction.inputs[1], instruction.inputs[2], | |
| 678 instruction.selector, backend.boolType); | |
| 679 } | |
| 680 } | |
| 681 | |
| 682 class GreaterSpecializer extends RelationalSpecializer { | |
| 683 const GreaterSpecializer(); | |
| 684 | |
| 685 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 686 return constantSystem.greater; | |
| 687 } | |
| 688 | |
| 689 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 690 Compiler compiler) { | |
| 691 JavaScriptBackend backend = compiler.backend; | |
| 692 return new HGreater( | |
| 693 instruction.inputs[1], instruction.inputs[2], | |
| 694 instruction.selector, backend.boolType); | |
| 695 } | |
| 696 } | |
| 697 | |
| 698 class GreaterEqualSpecializer extends RelationalSpecializer { | |
| 699 const GreaterEqualSpecializer(); | |
| 700 | |
| 701 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 702 return constantSystem.greaterEqual; | |
| 703 } | |
| 704 | |
| 705 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 706 Compiler compiler) { | |
| 707 JavaScriptBackend backend = compiler.backend; | |
| 708 return new HGreaterEqual( | |
| 709 instruction.inputs[1], instruction.inputs[2], | |
| 710 instruction.selector, backend.boolType); | |
| 711 } | |
| 712 } | |
| 713 | |
| 714 class LessEqualSpecializer extends RelationalSpecializer { | |
| 715 const LessEqualSpecializer(); | |
| 716 | |
| 717 BinaryOperation operation(ConstantSystem constantSystem) { | |
| 718 return constantSystem.lessEqual; | |
| 719 } | |
| 720 | |
| 721 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | |
| 722 Compiler compiler) { | |
| 723 JavaScriptBackend backend = compiler.backend; | |
| 724 return new HLessEqual( | |
| 725 instruction.inputs[1], instruction.inputs[2], | |
| 726 instruction.selector, backend.boolType); | |
| 727 } | |
| 728 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 692513002:
Remove old dart2js code. (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart