WebKit/Source/JavaScriptCore/ftl/FTLCapabilities.cpp at main · WebKit/WebKit · GitHub

History

698 lines (674 loc) · 19.9 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY

* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR

* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "config.h"

#include "FTLCapabilities.h"

#if ENABLE(FTL_JIT)

namespace JSC { namespace FTL {

using namespace DFG;

static bool NODELETE verboseCapabilities()

{

return verboseCompilationEnabled() || Options::verboseFTLFailure();

}

inline CapabilityLevel canCompile(DFG::Node* node)

{

// NOTE: If we ever have phantom arguments, we can compile them but we cannot

// OSR enter.

switch (node->op()) {

case JSConstant:

case LazyJSConstant:

case GetLocal:

case SetLocal:

case PutStack:

case KillStack:

case GetStack:

case MovHint:

case ZombieHint:

case ExitOK:

case Phantom:

case Flush:

case PhantomLocal:

case ExtractFromTuple:

case SetArgumentDefinitely:

case SetArgumentMaybe:

case DFG::Return:

case ArithBitNot:

case ArithBitAnd:

case ArithBitOr:

case ArithBitXor:

case ArithBitRShift:

case ArithBitLShift:

case ArithBitURShift:

case CheckStructure:

case CheckStructureOrEmpty:

case DoubleAsInt32:

case Arrayify:

case ArrayifyToStructure:

case PutStructure:

case GetButterfly:

case NewObject:

case NewStringObject:

case NewRegExpUntyped:

case NewSymbol:

case NewArray:

case NewArrayWithSpread:

case NewInternalFieldObject:

case NewPromise:

case Spread:

case NewArrayBuffer:

case NewTypedArray:

case NewTypedArrayBuffer:

case GetByOffset:

case GetGetterSetterByOffset:

case GetGetter:

case GetSetter:

case PutByOffset:

case GetGlobalVar:

case GetGlobalLexicalVariable:

case PutGlobalVariable:

case ValueBitAnd:

case ValueBitXor:

case ValueBitOr:

case ValueBitNot:

case ValueBitLShift:

case ValueBitRShift:

case ValueBitURShift:

case ValueNegate:

case ValueAdd:

case ValueSub:

case ValueMul:

case ValueDiv:

case ValueMod:

case ValuePow:

case Inc:

case Dec:

case StrCat:

case ArithAdd:

case ArithClz32:

case ArithSub:

case ArithMul:

case ArithDiv:

case ArithMod:

case ArithMin:

case ArithMax:

case ArithAbs:

case ArithPow:

case ArithRandom:

case ArithRound:

case ArithFloor:

case ArithCeil:

case ArithTrunc:

case ArithSqrt:

case ArithFRound:

case ArithF16Round:

case ArithNegate:

case ArithUnary:

case UInt32ToNumber:

case DFG::Jump:

case ForceOSRExit:

case DFG::Phi:

case DFG::Upsilon:

case ExtractOSREntryLocal:

case ExtractCatchLocal:

case ClearCatchLocals:

case LoopHint:

case SkipScope:

case GetGlobalObject:

case GetGlobalThis:

case UnwrapGlobalProxy:

case CreateActivation:

case PushWithScope:

case NewFunction:

case NewGeneratorFunction:

case NewAsyncFunction:

case NewAsyncGeneratorFunction:

case NewBoundFunction:

case GetClosureVar:

case PutClosureVar:

case GetInternalField:

case PutInternalField:

case CreateDirectArguments:

case CreateScopedArguments:

case CreateClonedArguments:

case GetFromArguments:

case PutToArguments:

case GetArgument:

case InvalidationPoint:

case StringAt:

case StringCharAt:

case StringLocaleCompare:

case CheckIsConstant:

case CheckBadValue:

case CheckNotEmpty:

case AssertNotEmpty:

case CheckIdent:

case CheckTraps:

case StringCharCodeAt:

case StringCodePointAt:

case StringFromCharCode:

case StringFromCodePoint:

case StringIndexOf:

case StringLastIndexOf:

case StringStartsWith:

case StringEndsWith:

case StringSplit:

case StringMatch:

case StringSearch:

case AllocatePropertyStorage:

case ReallocatePropertyStorage:

case NukeStructureAndSetButterfly:

case GetTypedArrayByteOffset:

case GetTypedArrayByteOffsetAsInt52:

case GetPrototypeOf:

case GetWebAssemblyInstanceExports:

case NotifyWrite:

case StoreBarrier:

case FencedStoreBarrier:

case Call:

case DirectCall:

case TailCall:

case DirectTailCall:

case TailCallInlinedCaller:

case DirectTailCallInlinedCaller:

case Construct:

case DirectConstruct:

case CallVarargs:

case CallDirectEval:

case TailCallVarargs:

case TailCallVarargsInlinedCaller:

case ConstructVarargs:

case CallForwardVarargs:

case TailCallForwardVarargs:

case TailCallForwardVarargsInlinedCaller:

case ConstructForwardVarargs:

case CallWasm:

case TailCallInlinedCallerWasm:

case CallCustomAccessorGetter:

case CallCustomAccessorSetter:

case VarargsLength:

case LoadVarargs:

case ValueToInt32:

case DFG::Branch:

case ToBoolean:

case LogicalNot:

case AssertInBounds:

case CheckInBounds:

case CheckInBoundsInt52:

case ConstantStoragePointer:

case DFG::Check:

case CheckVarargs:

case CheckArray:

case CheckArrayOrEmpty:

case CheckDetached:

case CountExecution:

case SuperSamplerBegin:

case SuperSamplerEnd:

case GetExecutable:

case GetScope:

case GetEvalScope:

case GetCallee:

case SetCallee:

case GetArgumentCountIncludingThis:

case SetArgumentCountIncludingThis:

case ToNumber:

case ToNumeric:

case ToString:

case FunctionToString:

case FunctionBind:

case ToObject:

case CallObjectConstructor:

case OpenAsyncFromSyncIterator:

case CallStringConstructor:

case CallNumberConstructor:

case ObjectAssign:

case ObjectCreate:

case ObjectKeys:

case ObjectGetOwnPropertyNames:

case ObjectGetOwnPropertySymbols:

case ObjectToString:

case SymbolToString:

case ReflectOwnKeys:

case MakeRope:

case MakeAtomString:

case NewArrayWithSize:

case NewArrayWithButterfly:

case NewButterflyWithSize:

case GetCellButterflySlot:

case PutCellButterflySlot:

case ArraySortCompact:

case ArraySortCommit:

case NewArrayWithSpecies:

case NewArrayWithSizeAndStructure:

case GetById:

case GetByIdFlush:

case GetByIdMegamorphic:

case GetByIdWithThis:

case GetByIdWithThisMegamorphic:

case GetByIdDirect:

case GetByIdDirectFlush:

case ToThis:

case MultiGetByOffset:

case MultiPutByOffset:

case MultiDeleteByOffset:

case ToPrimitive:

case ToPropertyKey:

case ToPropertyKeyOrNumber:

case Throw:

case ThrowStaticError:

case Unreachable:

case InByVal:

case InById:

case InByValMegamorphic:

case InByIdMegamorphic:

case HasPrivateName:

case HasPrivateBrand:

case HasOwnProperty:

case IsCellWithType:

case MapHash:

case NormalizeMapKey:

case MapGet:

case LoadMapValue:

case MapIterationNext:

case MapIterationEntry:

case MapIterationEntryKey:

case MapIterationEntryValue:

case MapOrSetSize:

case GetRegExpFlag:

case MapStorage:

case MapStorageOrSentinel:

case MapIteratorNext:

case MapIteratorKey:

case MapIteratorValue:

case ExtractValueFromWeakMapGet:

case SetAdd:

case MapSet:

case MapOrSetDelete:

case WeakMapGet:

case WeakSetAdd:

case WeakMapSet:

case IsEmpty:

case IsEmptyStorage:

case TypeOfIsUndefined:

case TypeOfIsObject:

case TypeOfIsFunction:

case IsUndefinedOrNull:

case IsBoolean:

case IsNumber:

case IsBigInt:

case NumberIsInteger:

case GlobalIsNaN:

case NumberIsNaN:

case GlobalIsFinite:

case NumberIsFinite:

case NumberIsSafeInteger:

case IsObject:

case IsCallable:

case IsConstructor:

case ArrayIsArray:

case CheckTypeInfoFlags:

case HasStructureWithFlags:

case OverridesHasInstance:

case InstanceOf:

case InstanceOfMegamorphic:

case InstanceOfCustom:

case DoubleRep:

case DFG::ValueRep:

case Int52Rep:

case DFG::PurifyNaN:

case DoubleConstant:

case Int52Constant:

case BooleanToNumber:

case HasIndexedProperty:

case GetIndexedPropertyStorage:

case ResolveRope:

case GetPropertyEnumerator:

case EnumeratorNextUpdateIndexAndMode:

case StringIteratorNext:

case StringIteratorNextWithUndefined:

case EnumeratorNextUpdatePropertyName:

case EnumeratorGetByVal:

case EnumeratorInByVal:

case EnumeratorHasOwnProperty:

case EnumeratorPutByVal:

case BottomValue:

case PhantomNewObject:

case PhantomNewArrayWithButterfly:

case PhantomNewButterflyWithSize:

case PhantomNewFunction:

case PhantomNewGeneratorFunction:

case PhantomNewAsyncGeneratorFunction:

case PhantomNewAsyncFunction:

case PhantomNewInternalFieldObject:

case PhantomNewPromise:

case PhantomCreateActivation:

case PhantomNewRegExp:

case PutHint:

case CheckStructureImmediate:

case MaterializeNewObject:

case MaterializeNewArrayWithButterfly:

case MaterializeCreateActivation:

case MaterializeNewInternalFieldObject:

case PhantomDirectArguments:

case PhantomCreateRest:

case PhantomSpread:

case PhantomNewArrayWithSpread:

case PhantomNewArrayBuffer:

case PhantomClonedArguments:

case GetMyArgumentByVal:

case GetMyArgumentByValOutOfBounds:

case ForwardVarargs:

case DFG::EntrySwitch:

case DFG::Switch:

case TypeOf:

case PutById:

case PutByIdDirect:

case PutByIdFlush:

case PutByIdMegamorphic:

case PutByIdWithThis:

case PutGetterById:

case PutSetterById:

case PutGetterSetterById:

case PutGetterByVal:

case PutSetterByVal:

case DeleteById:

case DeleteByVal:

case CreateRest:

case RegExpExec:

case RegExpExecNonGlobalOrSticky:

case RegExpExecSticky:

case RegExpTest:

case RegExpTestInline:

case RegExpMatchFast:

case RegExpMatchFastGlobal:

case RegExpSearch:

case RegExpSplitFast:

case RegExpStringIteratorNext:

case NewRegExp:

case NewMap:

case NewSet:

case NewWeakMap:

case NewWeakSet:

case StringReplace:

case StringReplaceAll:

case StringReplaceRegExp:

case StringReplaceString:

case GetRegExpObjectLastIndex:

case SetRegExpObjectLastIndex:

case RecordRegExpCachedResult:

case SetFunctionName:

case EnqueueAsyncGeneratorDriver:

case LogShadowChickenPrologue:

case LogShadowChickenTail:

case ResolveScope:

case ResolveScopeForHoistingFuncDeclInEval:

case GetDynamicVar:

case PutDynamicVar:

case CompareEq:

case CompareEqPtr:

case CompareLess:

case CompareLessEq:

case CompareGreater:

case CompareGreaterEq:

case CompareBelow:

case CompareBelowEq:

case CompareStrictEq:

case SameValue:

case DefineDataProperty:

case DefineAccessorProperty:

case ObjectDefineProperty:

case ObjectDefinePropertyFromFields:

case StringValueOf:

case StringSlice:

case StringSubstring:

case StringSubstr:

case ToUpperCase:

case ToLowerCase:

case StringTrim:

case NumberToStringWithRadix:

case NumberToStringWithValidRadixConstant:

case CheckJSCast:

case CheckNotJSCast:

case CallDOM:

case CallDOMGetter:

case ArraySlice:

case ArrayConcatArray:

case ArrayConcatAppendOne:

case ArraySplice:

case ArrayIncludes:

case ArrayIndexOf:

case ArrayJoin:

case ArrayPop:

case ArrayPush:

case ArrayShift:

case ArrayUnshift:

case ParseInt:

case ToIntegerOrInfinity:

case ToLength:

case AtomicsAdd:

case AtomicsAnd:

case AtomicsCompareExchange:

case AtomicsExchange:

case AtomicsLoad:

case AtomicsOr:

case AtomicsStore:

case AtomicsSub:

case AtomicsXor:

case AtomicsIsLockFree:

case InitializeEntrypointArguments:

case CPUIntrinsic:

case GetArrayLength:

case GetUndetachedTypeArrayLength:

case GetTypedArrayLengthAsInt52:

case GetVectorLength:

case GetByVal:

case GetByValMegamorphic:

case GetByValWithThis:

case GetByValWithThisMegamorphic:

case MultiGetByVal:

case MultiPutByVal:

case PutByVal:

case PutByValDirectResolved:

case PutByValMegamorphic:

case PutByValDirect:

case PutByValWithThis:

case PutPrivateName:

case PutPrivateNameById:

case GetPrivateName:

case GetPrivateNameById:

case CheckPrivateBrand:

case SetPrivateBrand:

case MatchStructure:

case FilterCallLinkStatus:

case FilterGetByStatus:

case FilterPutByStatus:

case FilterInByStatus:

case FilterDeleteByStatus:

case FilterCheckPrivateBrandStatus:

case FilterSetPrivateBrandStatus:

case CreateThis:

case CreatePromise:

case CreateGenerator:

case CreateAsyncGenerator:

case DataViewGetByteLength:

case DataViewGetByteLengthAsInt52:

case DataViewGetInt:

case DataViewGetFloat:

case DataViewSet:

case DateNow:

case DateGetInt32OrNaN:

case DateGetTime:

case DateSetTime:

case ResolvePromiseFirstResolving:

case RejectPromiseFirstResolving:

case FulfillPromiseFirstResolving:

case NewResolvedPromise:

case NewRejectedPromise:

case PromiseResolve:

case PromiseReject:

case PromiseThen:

case PerformPromiseThen:

case PerformPromiseThenOneHandler:

// These are OK.

break;

case DFG::Identity:

// No backend handles this because it will be optimized out. But we may check

// for capabilities before optimization. It would be a deep error to remove this

// case because it would prevent us from catching bugs where the FTL backend

// pipeline failed to optimize out an Identity.

break;

case IdentityWithProfile:

case CheckTierUpInLoop:

case CheckTierUpAndOSREnter:

case CheckTierUpAtReturn:

case FiatInt52:

case ArithIMul:

case ProfileType:

case ProfileControlFlow:

case LastNodeType:

return CannotCompile;

}

return CanCompileAndOSREnter;

}

CapabilityLevel canCompile(Graph& graph)

{

if (graph.m_codeBlock->bytecodeCost() > Options::maximumFTLCandidateBytecodeCost()) {

dataLogLnIf(verboseCapabilities(), "FTL rejecting ", *graph.m_codeBlock, " because it's too big.");

return CannotCompile;

}

if (graph.m_codeBlock->ownerExecutable()->neverFTLOptimize()) [[unlikely]] {

dataLogLnIf(verboseCapabilities(), "FTL rejecting ", *graph.m_codeBlock, " because it is marked as never FTL compile.");

return CannotCompile;

}

CapabilityLevel result = CanCompileAndOSREnter;

for (BlockIndex blockIndex = graph.numBlocks(); blockIndex--;) {

DFG::BasicBlock* block = graph.block(blockIndex);

if (!block)

continue;

// We don't care if we can compile blocks that the CFA hasn't visited.

if (!block->cfaHasVisited)

continue;

for (unsigned nodeIndex = 0; nodeIndex < block->size(); ++nodeIndex) {

DFG::Node* node = block->at(nodeIndex);

for (unsigned childIndex = graph.numChildren(node); childIndex--;) {

Edge edge = graph.child(node, childIndex);

if (!edge)

continue;

switch (edge.useKind()) {

case UntypedUse:

case Int32Use:

case KnownInt32Use:

case Int52RepUse:

case NumberUse:

case RealNumberUse:

case DoubleRepUse:

case DoubleRepRealUse:

case BooleanUse:

case KnownBooleanUse:

case CellUse:

case KnownCellUse:

case KnownStorageUse:

case CellOrOtherUse:

case ObjectUse:

case ArrayUse:

case FunctionUse:

case ObjectOrOtherUse:

case StringUse:

case StringOrOtherUse:

case KnownStringUse:

case KnownPrimitiveUse:

case StringObjectUse:

case StringOrStringObjectUse:

case SymbolUse:

case AnyBigIntUse:

case BigInt32Use:

case HeapBigIntUse:

case DateObjectUse:

case MapObjectUse:

case MapIteratorObjectUse:

case SetObjectUse:

case SetIteratorObjectUse:

case WeakMapObjectUse:

case WeakSetObjectUse:

case DataViewObjectUse:

case FinalObjectUse:

case PromiseObjectUse:

case RegExpObjectUse:

case ProxyObjectUse:

case GlobalProxyUse:

case DerivedArrayUse:

case NotCellUse:

case NotCellNorBigIntUse:

case OtherUse:

case KnownOtherUse:

case MiscUse:

case StringIdentUse:

case NotStringVarUse:

case NotSymbolUse:

case AnyIntUse:

case DoubleRepAnyIntUse:

case NotDoubleUse:

case NeitherDoubleNorHeapBigIntUse:

case NeitherDoubleNorHeapBigIntNorStringUse:

// These are OK.

break;

default:

// Don't know how to handle anything else.

if (verboseCapabilities()) [[unlikely]] {

WTF::dataFile().atomically([&](auto&) {

dataLogLn("FTL rejecting node in ", *graph.m_codeBlock, " because of bad use kind: ", edge.useKind(), " in node:");

graph.dump(WTF::dataFile(), " ", node);

});

}

return CannotCompile;

}

switch (canCompile(node)) {

case CannotCompile:

if (verboseCapabilities()) [[unlikely]] {

WTF::dataFile().atomically([&](auto&) {

dataLogLn("FTL rejecting node in ", *graph.m_codeBlock, ":");

graph.dump(WTF::dataFile(), " ", node);

});

}

return CannotCompile;

case CanCompile:

if (result == CanCompileAndOSREnter && verboseCompilationEnabled()) [[unlikely]] {

WTF::dataFile().atomically([&](auto&) {

dataLogLn("FTL disabling OSR entry because of node:");

graph.dump(WTF::dataFile(), " ", node);

});

}

result = CanCompile;

break;

case CanCompileAndOSREnter:

break;

}

if (node->op() == ForceOSRExit)

break;

}

return result;

}

} } // namespace JSC::FTL

#endif // ENABLE(FTL_JIT)

WebKit/Source/JavaScriptCore/ftl/FTLCapabilities.cpp at main · WebKit/WebKit · GitHub

Uh oh!

Expand file tree

Breadcrumbs

FTLCapabilities.cpp

Latest commit

History

Breadcrumbs

FTLCapabilities.cpp

File metadata and controls