V8 Project
runtime.h
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1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_RUNTIME_H_
6 #define V8_RUNTIME_H_
7 
8 #include "src/allocation.h"
9 #include "src/zone.h"
10 
11 namespace v8 {
12 namespace internal {
13 
14 // The interface to C++ runtime functions.
15 
16 // ----------------------------------------------------------------------------
17 // RUNTIME_FUNCTION_LIST_ALWAYS defines runtime calls available in both
18 // release and debug mode.
19 // This macro should only be used by the macro RUNTIME_FUNCTION_LIST.
20 
21 // WARNING: RUNTIME_FUNCTION_LIST_ALWAYS_* is a very large macro that caused
22 // MSVC Intellisense to crash. It was broken into two macros to work around
23 // this problem. Please avoid large recursive macros whenever possible.
24 #define RUNTIME_FUNCTION_LIST_ALWAYS_1(F) \
25  /* Property access */ \
26  F(GetProperty, 2, 1) \
27  F(KeyedGetProperty, 2, 1) \
28  F(DeleteProperty, 3, 1) \
29  F(HasOwnProperty, 2, 1) \
30  F(HasProperty, 2, 1) \
31  F(HasElement, 2, 1) \
32  F(IsPropertyEnumerable, 2, 1) \
33  F(GetPropertyNames, 1, 1) \
34  F(GetPropertyNamesFast, 1, 1) \
35  F(GetOwnPropertyNames, 2, 1) \
36  F(GetOwnElementNames, 1, 1) \
37  F(GetInterceptorInfo, 1, 1) \
38  F(GetNamedInterceptorPropertyNames, 1, 1) \
39  F(GetIndexedInterceptorElementNames, 1, 1) \
40  F(GetArgumentsProperty, 1, 1) \
41  F(ToFastProperties, 1, 1) \
42  F(FinishArrayPrototypeSetup, 1, 1) \
43  F(SpecialArrayFunctions, 0, 1) \
44  F(IsSloppyModeFunction, 1, 1) \
45  F(GetDefaultReceiver, 1, 1) \
46  \
47  F(GetPrototype, 1, 1) \
48  F(SetPrototype, 2, 1) \
49  F(InternalSetPrototype, 2, 1) \
50  F(IsInPrototypeChain, 2, 1) \
51  \
52  F(GetOwnProperty, 2, 1) \
53  \
54  F(IsExtensible, 1, 1) \
55  F(PreventExtensions, 1, 1) \
56  \
57  /* Utilities */ \
58  F(CheckIsBootstrapping, 0, 1) \
59  F(GetRootNaN, 0, 1) \
60  F(Call, -1 /* >= 2 */, 1) \
61  F(Apply, 5, 1) \
62  F(GetFunctionDelegate, 1, 1) \
63  F(GetConstructorDelegate, 1, 1) \
64  F(DeoptimizeFunction, 1, 1) \
65  F(ClearFunctionTypeFeedback, 1, 1) \
66  F(RunningInSimulator, 0, 1) \
67  F(IsConcurrentRecompilationSupported, 0, 1) \
68  F(OptimizeFunctionOnNextCall, -1, 1) \
69  F(NeverOptimizeFunction, 1, 1) \
70  F(GetOptimizationStatus, -1, 1) \
71  F(GetOptimizationCount, 1, 1) \
72  F(UnblockConcurrentRecompilation, 0, 1) \
73  F(CompileForOnStackReplacement, 1, 1) \
74  F(SetAllocationTimeout, -1 /* 2 || 3 */, 1) \
75  F(SetNativeFlag, 1, 1) \
76  F(SetInlineBuiltinFlag, 1, 1) \
77  F(StoreArrayLiteralElement, 5, 1) \
78  F(DebugPrepareStepInIfStepping, 1, 1) \
79  F(DebugPushPromise, 1, 1) \
80  F(DebugPopPromise, 0, 1) \
81  F(DebugPromiseEvent, 1, 1) \
82  F(DebugPromiseRejectEvent, 2, 1) \
83  F(DebugAsyncTaskEvent, 1, 1) \
84  F(FlattenString, 1, 1) \
85  F(LoadMutableDouble, 2, 1) \
86  F(TryMigrateInstance, 1, 1) \
87  F(NotifyContextDisposed, 0, 1) \
88  \
89  /* Array join support */ \
90  F(PushIfAbsent, 2, 1) \
91  F(ArrayConcat, 1, 1) \
92  \
93  /* Conversions */ \
94  F(ToBool, 1, 1) \
95  F(Typeof, 1, 1) \
96  \
97  F(Booleanize, 2, 1) /* TODO(turbofan): Only temporary */ \
98  \
99  F(StringToNumber, 1, 1) \
100  F(StringParseInt, 2, 1) \
101  F(StringParseFloat, 1, 1) \
102  F(StringToLowerCase, 1, 1) \
103  F(StringToUpperCase, 1, 1) \
104  F(StringSplit, 3, 1) \
105  F(CharFromCode, 1, 1) \
106  F(URIEscape, 1, 1) \
107  F(URIUnescape, 1, 1) \
108  \
109  F(NumberToInteger, 1, 1) \
110  F(NumberToIntegerMapMinusZero, 1, 1) \
111  F(NumberToJSUint32, 1, 1) \
112  F(NumberToJSInt32, 1, 1) \
113  \
114  /* Arithmetic operations */ \
115  F(NumberAdd, 2, 1) \
116  F(NumberSub, 2, 1) \
117  F(NumberMul, 2, 1) \
118  F(NumberDiv, 2, 1) \
119  F(NumberMod, 2, 1) \
120  F(NumberUnaryMinus, 1, 1) \
121  F(NumberImul, 2, 1) \
122  \
123  F(StringBuilderConcat, 3, 1) \
124  F(StringBuilderJoin, 3, 1) \
125  F(SparseJoinWithSeparator, 3, 1) \
126  \
127  /* Bit operations */ \
128  F(NumberOr, 2, 1) \
129  F(NumberAnd, 2, 1) \
130  F(NumberXor, 2, 1) \
131  \
132  F(NumberShl, 2, 1) \
133  F(NumberShr, 2, 1) \
134  F(NumberSar, 2, 1) \
135  \
136  /* Comparisons */ \
137  F(NumberEquals, 2, 1) \
138  F(StringEquals, 2, 1) \
139  \
140  F(NumberCompare, 3, 1) \
141  F(SmiLexicographicCompare, 2, 1) \
142  \
143  /* Math */ \
144  F(MathAcos, 1, 1) \
145  F(MathAsin, 1, 1) \
146  F(MathAtan, 1, 1) \
147  F(MathFloorRT, 1, 1) \
148  F(MathAtan2, 2, 1) \
149  F(MathExpRT, 1, 1) \
150  F(RoundNumber, 1, 1) \
151  F(MathFround, 1, 1) \
152  F(RemPiO2, 1, 1) \
153  \
154  /* Regular expressions */ \
155  F(RegExpCompile, 3, 1) \
156  F(RegExpExecMultiple, 4, 1) \
157  F(RegExpInitializeObject, 6, 1) \
158  \
159  /* JSON */ \
160  F(ParseJson, 1, 1) \
161  F(BasicJSONStringify, 1, 1) \
162  F(QuoteJSONString, 1, 1) \
163  \
164  /* Strings */ \
165  F(StringIndexOf, 3, 1) \
166  F(StringLastIndexOf, 3, 1) \
167  F(StringLocaleCompare, 2, 1) \
168  F(StringReplaceGlobalRegExpWithString, 4, 1) \
169  F(StringReplaceOneCharWithString, 3, 1) \
170  F(StringMatch, 3, 1) \
171  F(StringTrim, 3, 1) \
172  F(StringToArray, 2, 1) \
173  F(NewStringWrapper, 1, 1) \
174  F(NewString, 2, 1) \
175  F(TruncateString, 2, 1) \
176  \
177  /* Numbers */ \
178  F(NumberToRadixString, 2, 1) \
179  F(NumberToFixed, 2, 1) \
180  F(NumberToExponential, 2, 1) \
181  F(NumberToPrecision, 2, 1) \
182  F(IsValidSmi, 1, 1) \
183  \
184  /* Classes support */ \
185  F(ToMethod, 2, 1) \
186  F(HomeObjectSymbol, 0, 1) \
187  F(ThrowNonMethodError, 0, 1) \
188  F(ThrowUnsupportedSuperError, 0, 1) \
189  F(LoadFromSuper, 3, 1) \
190  F(StoreToSuper_Strict, 4, 1) \
191  F(StoreToSuper_Sloppy, 4, 1)
192 
193 
194 #define RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \
195  /* Reflection */ \
196  F(FunctionSetInstanceClassName, 2, 1) \
197  F(FunctionSetLength, 2, 1) \
198  F(FunctionSetPrototype, 2, 1) \
199  F(FunctionGetName, 1, 1) \
200  F(FunctionSetName, 2, 1) \
201  F(FunctionNameShouldPrintAsAnonymous, 1, 1) \
202  F(FunctionMarkNameShouldPrintAsAnonymous, 1, 1) \
203  F(FunctionIsGenerator, 1, 1) \
204  F(FunctionIsArrow, 1, 1) \
205  F(FunctionIsConciseMethod, 1, 1) \
206  F(FunctionBindArguments, 4, 1) \
207  F(BoundFunctionGetBindings, 1, 1) \
208  F(FunctionRemovePrototype, 1, 1) \
209  F(FunctionGetSourceCode, 1, 1) \
210  F(FunctionGetScript, 1, 1) \
211  F(FunctionGetScriptSourcePosition, 1, 1) \
212  F(FunctionGetPositionForOffset, 2, 1) \
213  F(FunctionIsAPIFunction, 1, 1) \
214  F(FunctionIsBuiltin, 1, 1) \
215  F(GetScript, 1, 1) \
216  F(CollectStackTrace, 2, 1) \
217  F(GetV8Version, 0, 1) \
218  F(GeneratorGetFunction, 1, 1) \
219  F(GeneratorGetContext, 1, 1) \
220  F(GeneratorGetReceiver, 1, 1) \
221  F(GeneratorGetContinuation, 1, 1) \
222  F(GeneratorGetSourcePosition, 1, 1) \
223  \
224  F(SetCode, 2, 1) \
225  \
226  F(CreateApiFunction, 2, 1) \
227  F(IsTemplate, 1, 1) \
228  F(GetTemplateField, 2, 1) \
229  F(DisableAccessChecks, 1, 1) \
230  F(EnableAccessChecks, 1, 1) \
231  \
232  /* Dates */ \
233  F(DateCurrentTime, 0, 1) \
234  F(DateParseString, 2, 1) \
235  F(DateLocalTimezone, 1, 1) \
236  F(DateToUTC, 1, 1) \
237  F(DateMakeDay, 2, 1) \
238  F(DateSetValue, 3, 1) \
239  F(DateCacheVersion, 0, 1) \
240  \
241  /* Globals */ \
242  F(CompileString, 2, 1) \
243  \
244  /* Eval */ \
245  F(GlobalProxy, 1, 1) \
246  F(IsAttachedGlobal, 1, 1) \
247  \
248  F(AddNamedProperty, 4, 1) \
249  F(AddPropertyForTemplate, 4, 1) \
250  F(SetProperty, 4, 1) \
251  F(AddElement, 4, 1) \
252  F(DefineApiAccessorProperty, 5, 1) \
253  F(DefineDataPropertyUnchecked, 4, 1) \
254  F(DefineAccessorPropertyUnchecked, 5, 1) \
255  F(GetDataProperty, 2, 1) \
256  F(SetHiddenProperty, 3, 1) \
257  \
258  /* Arrays */ \
259  F(RemoveArrayHoles, 2, 1) \
260  F(GetArrayKeys, 2, 1) \
261  F(MoveArrayContents, 2, 1) \
262  F(EstimateNumberOfElements, 1, 1) \
263  F(NormalizeElements, 1, 1) \
264  \
265  /* Getters and Setters */ \
266  F(LookupAccessor, 3, 1) \
267  \
268  /* ES5 */ \
269  F(ObjectFreeze, 1, 1) \
270  \
271  /* Harmony modules */ \
272  F(IsJSModule, 1, 1) \
273  \
274  /* Harmony symbols */ \
275  F(CreateSymbol, 1, 1) \
276  F(CreatePrivateSymbol, 1, 1) \
277  F(CreateGlobalPrivateOwnSymbol, 1, 1) \
278  F(CreatePrivateOwnSymbol, 1, 1) \
279  F(NewSymbolWrapper, 1, 1) \
280  F(SymbolDescription, 1, 1) \
281  F(SymbolRegistry, 0, 1) \
282  F(SymbolIsPrivate, 1, 1) \
283  \
284  /* Harmony proxies */ \
285  F(CreateJSProxy, 2, 1) \
286  F(CreateJSFunctionProxy, 4, 1) \
287  F(IsJSProxy, 1, 1) \
288  F(IsJSFunctionProxy, 1, 1) \
289  F(GetHandler, 1, 1) \
290  F(GetCallTrap, 1, 1) \
291  F(GetConstructTrap, 1, 1) \
292  F(Fix, 1, 1) \
293  \
294  /* Harmony sets */ \
295  F(SetInitialize, 1, 1) \
296  F(SetAdd, 2, 1) \
297  F(SetHas, 2, 1) \
298  F(SetDelete, 2, 1) \
299  F(SetClear, 1, 1) \
300  F(SetGetSize, 1, 1) \
301  \
302  F(SetIteratorInitialize, 3, 1) \
303  F(SetIteratorNext, 2, 1) \
304  \
305  /* Harmony maps */ \
306  F(MapInitialize, 1, 1) \
307  F(MapGet, 2, 1) \
308  F(MapHas, 2, 1) \
309  F(MapDelete, 2, 1) \
310  F(MapClear, 1, 1) \
311  F(MapSet, 3, 1) \
312  F(MapGetSize, 1, 1) \
313  \
314  F(MapIteratorInitialize, 3, 1) \
315  F(MapIteratorNext, 2, 1) \
316  \
317  /* Harmony weak maps and sets */ \
318  F(WeakCollectionInitialize, 1, 1) \
319  F(WeakCollectionGet, 2, 1) \
320  F(WeakCollectionHas, 2, 1) \
321  F(WeakCollectionDelete, 2, 1) \
322  F(WeakCollectionSet, 3, 1) \
323  \
324  F(GetWeakMapEntries, 1, 1) \
325  F(GetWeakSetValues, 1, 1) \
326  \
327  /* Harmony events */ \
328  F(EnqueueMicrotask, 1, 1) \
329  F(RunMicrotasks, 0, 1) \
330  \
331  /* Harmony observe */ \
332  F(IsObserved, 1, 1) \
333  F(SetIsObserved, 1, 1) \
334  F(GetObservationState, 0, 1) \
335  F(ObservationWeakMapCreate, 0, 1) \
336  F(ObserverObjectAndRecordHaveSameOrigin, 3, 1) \
337  F(ObjectWasCreatedInCurrentOrigin, 1, 1) \
338  F(GetObjectContextObjectObserve, 1, 1) \
339  F(GetObjectContextObjectGetNotifier, 1, 1) \
340  F(GetObjectContextNotifierPerformChange, 1, 1) \
341  \
342  /* Harmony typed arrays */ \
343  F(ArrayBufferInitialize, 2, 1) \
344  F(ArrayBufferSliceImpl, 3, 1) \
345  F(ArrayBufferIsView, 1, 1) \
346  F(ArrayBufferNeuter, 1, 1) \
347  \
348  F(TypedArrayInitializeFromArrayLike, 4, 1) \
349  F(TypedArrayGetBuffer, 1, 1) \
350  F(TypedArraySetFastCases, 3, 1) \
351  \
352  F(DataViewGetBuffer, 1, 1) \
353  F(DataViewGetInt8, 3, 1) \
354  F(DataViewGetUint8, 3, 1) \
355  F(DataViewGetInt16, 3, 1) \
356  F(DataViewGetUint16, 3, 1) \
357  F(DataViewGetInt32, 3, 1) \
358  F(DataViewGetUint32, 3, 1) \
359  F(DataViewGetFloat32, 3, 1) \
360  F(DataViewGetFloat64, 3, 1) \
361  \
362  F(DataViewSetInt8, 4, 1) \
363  F(DataViewSetUint8, 4, 1) \
364  F(DataViewSetInt16, 4, 1) \
365  F(DataViewSetUint16, 4, 1) \
366  F(DataViewSetInt32, 4, 1) \
367  F(DataViewSetUint32, 4, 1) \
368  F(DataViewSetFloat32, 4, 1) \
369  F(DataViewSetFloat64, 4, 1) \
370  \
371  /* Statements */ \
372  F(NewObjectFromBound, 1, 1) \
373  \
374  /* Declarations and initialization */ \
375  F(InitializeVarGlobal, 3, 1) \
376  F(OptimizeObjectForAddingMultipleProperties, 2, 1) \
377  \
378  /* Debugging */ \
379  F(DebugPrint, 1, 1) \
380  F(GlobalPrint, 1, 1) \
381  F(DebugTrace, 0, 1) \
382  F(TraceEnter, 0, 1) \
383  F(TraceExit, 1, 1) \
384  F(Abort, 1, 1) \
385  F(AbortJS, 1, 1) \
386  /* ES5 */ \
387  F(OwnKeys, 1, 1) \
388  \
389  /* Message objects */ \
390  F(MessageGetStartPosition, 1, 1) \
391  F(MessageGetScript, 1, 1) \
392  \
393  /* Pseudo functions - handled as macros by parser */ \
394  F(IS_VAR, 1, 1) \
395  \
396  /* expose boolean functions from objects-inl.h */ \
397  F(HasFastSmiElements, 1, 1) \
398  F(HasFastSmiOrObjectElements, 1, 1) \
399  F(HasFastObjectElements, 1, 1) \
400  F(HasFastDoubleElements, 1, 1) \
401  F(HasFastHoleyElements, 1, 1) \
402  F(HasDictionaryElements, 1, 1) \
403  F(HasSloppyArgumentsElements, 1, 1) \
404  F(HasExternalUint8ClampedElements, 1, 1) \
405  F(HasExternalArrayElements, 1, 1) \
406  F(HasExternalInt8Elements, 1, 1) \
407  F(HasExternalUint8Elements, 1, 1) \
408  F(HasExternalInt16Elements, 1, 1) \
409  F(HasExternalUint16Elements, 1, 1) \
410  F(HasExternalInt32Elements, 1, 1) \
411  F(HasExternalUint32Elements, 1, 1) \
412  F(HasExternalFloat32Elements, 1, 1) \
413  F(HasExternalFloat64Elements, 1, 1) \
414  F(HasFixedUint8ClampedElements, 1, 1) \
415  F(HasFixedInt8Elements, 1, 1) \
416  F(HasFixedUint8Elements, 1, 1) \
417  F(HasFixedInt16Elements, 1, 1) \
418  F(HasFixedUint16Elements, 1, 1) \
419  F(HasFixedInt32Elements, 1, 1) \
420  F(HasFixedUint32Elements, 1, 1) \
421  F(HasFixedFloat32Elements, 1, 1) \
422  F(HasFixedFloat64Elements, 1, 1) \
423  F(HasFastProperties, 1, 1) \
424  F(TransitionElementsKind, 2, 1) \
425  F(HaveSameMap, 2, 1) \
426  F(IsJSGlobalProxy, 1, 1) \
427  F(ForInCacheArrayLength, 2, 1) /* TODO(turbofan): Only temporary */
428 
429 
430 #define RUNTIME_FUNCTION_LIST_ALWAYS_3(F) \
431  /* String and Regexp */ \
432  F(NumberToStringRT, 1, 1) \
433  F(RegExpConstructResult, 3, 1) \
434  F(RegExpExecRT, 4, 1) \
435  F(StringAdd, 2, 1) \
436  F(SubString, 3, 1) \
437  F(InternalizeString, 1, 1) \
438  F(StringCompare, 2, 1) \
439  F(StringCharCodeAtRT, 2, 1) \
440  F(GetFromCache, 2, 1) \
441  \
442  /* Compilation */ \
443  F(CompileLazy, 1, 1) \
444  F(CompileOptimized, 2, 1) \
445  F(TryInstallOptimizedCode, 1, 1) \
446  F(NotifyDeoptimized, 1, 1) \
447  F(NotifyStubFailure, 0, 1) \
448  \
449  /* Utilities */ \
450  F(AllocateInNewSpace, 1, 1) \
451  F(AllocateInTargetSpace, 2, 1) \
452  F(AllocateHeapNumber, 0, 1) \
453  F(NumberToSmi, 1, 1) \
454  F(NumberToStringSkipCache, 1, 1) \
455  \
456  F(NewArguments, 1, 1) /* TODO(turbofan): Only temporary */ \
457  F(NewSloppyArguments, 3, 1) \
458  F(NewStrictArguments, 3, 1) \
459  \
460  /* Harmony generators */ \
461  F(CreateJSGeneratorObject, 0, 1) \
462  F(SuspendJSGeneratorObject, 1, 1) \
463  F(ResumeJSGeneratorObject, 3, 1) \
464  F(ThrowGeneratorStateError, 1, 1) \
465  \
466  /* Arrays */ \
467  F(ArrayConstructor, -1, 1) \
468  F(InternalArrayConstructor, -1, 1) \
469  \
470  /* Literals */ \
471  F(MaterializeRegExpLiteral, 4, 1) \
472  F(CreateObjectLiteral, 4, 1) \
473  F(CreateArrayLiteral, 4, 1) \
474  F(CreateArrayLiteralStubBailout, 3, 1) \
475  \
476  /* Statements */ \
477  F(NewClosure, 3, 1) \
478  F(NewClosureFromStubFailure, 1, 1) \
479  F(NewObject, 1, 1) \
480  F(NewObjectWithAllocationSite, 2, 1) \
481  F(FinalizeInstanceSize, 1, 1) \
482  F(Throw, 1, 1) \
483  F(ReThrow, 1, 1) \
484  F(ThrowReferenceError, 1, 1) \
485  F(ThrowNotDateError, 0, 1) \
486  F(StackGuard, 0, 1) \
487  F(Interrupt, 0, 1) \
488  F(PromoteScheduledException, 0, 1) \
489  \
490  /* Contexts */ \
491  F(NewGlobalContext, 2, 1) \
492  F(NewFunctionContext, 1, 1) \
493  F(PushWithContext, 2, 1) \
494  F(PushCatchContext, 3, 1) \
495  F(PushBlockContext, 2, 1) \
496  F(PushModuleContext, 2, 1) \
497  F(DeleteLookupSlot, 2, 1) \
498  F(StoreLookupSlot, 4, 1) \
499  \
500  /* Declarations and initialization */ \
501  F(DeclareGlobals, 3, 1) \
502  F(DeclareModules, 1, 1) \
503  F(DeclareLookupSlot, 4, 1) \
504  F(InitializeConstGlobal, 2, 1) \
505  F(InitializeLegacyConstLookupSlot, 3, 1) \
506  \
507  /* Maths */ \
508  F(MathPowSlow, 2, 1) \
509  F(MathPowRT, 2, 1)
510 
511 
512 #define RUNTIME_FUNCTION_LIST_RETURN_PAIR(F) \
513  F(LoadLookupSlot, 2, 2) \
514  F(LoadLookupSlotNoReferenceError, 2, 2) \
515  F(ResolvePossiblyDirectEval, 5, 2) \
516  F(ForInInit, 2, 2) /* TODO(turbofan): Only temporary */ \
517  F(ForInNext, 4, 2) /* TODO(turbofan): Only temporary */
518 
519 
520 #define RUNTIME_FUNCTION_LIST_DEBUGGER(F) \
521  /* Debugger support*/ \
522  F(DebugBreak, 0, 1) \
523  F(SetDebugEventListener, 2, 1) \
524  F(Break, 0, 1) \
525  F(DebugGetPropertyDetails, 2, 1) \
526  F(DebugGetProperty, 2, 1) \
527  F(DebugPropertyTypeFromDetails, 1, 1) \
528  F(DebugPropertyAttributesFromDetails, 1, 1) \
529  F(DebugPropertyIndexFromDetails, 1, 1) \
530  F(DebugNamedInterceptorPropertyValue, 2, 1) \
531  F(DebugIndexedInterceptorElementValue, 2, 1) \
532  F(CheckExecutionState, 1, 1) \
533  F(GetFrameCount, 1, 1) \
534  F(GetFrameDetails, 2, 1) \
535  F(GetScopeCount, 2, 1) \
536  F(GetStepInPositions, 2, 1) \
537  F(GetScopeDetails, 4, 1) \
538  F(GetAllScopesDetails, 4, 1) \
539  F(GetFunctionScopeCount, 1, 1) \
540  F(GetFunctionScopeDetails, 2, 1) \
541  F(SetScopeVariableValue, 6, 1) \
542  F(DebugPrintScopes, 0, 1) \
543  F(GetThreadCount, 1, 1) \
544  F(GetThreadDetails, 2, 1) \
545  F(SetDisableBreak, 1, 1) \
546  F(GetBreakLocations, 2, 1) \
547  F(SetFunctionBreakPoint, 3, 1) \
548  F(SetScriptBreakPoint, 4, 1) \
549  F(ClearBreakPoint, 1, 1) \
550  F(ChangeBreakOnException, 2, 1) \
551  F(IsBreakOnException, 1, 1) \
552  F(PrepareStep, 4, 1) \
553  F(ClearStepping, 0, 1) \
554  F(DebugEvaluate, 6, 1) \
555  F(DebugEvaluateGlobal, 4, 1) \
556  F(DebugGetLoadedScripts, 0, 1) \
557  F(DebugReferencedBy, 3, 1) \
558  F(DebugConstructedBy, 2, 1) \
559  F(DebugGetPrototype, 1, 1) \
560  F(DebugSetScriptSource, 2, 1) \
561  F(DebugCallbackSupportsStepping, 1, 1) \
562  F(SystemBreak, 0, 1) \
563  F(DebugDisassembleFunction, 1, 1) \
564  F(DebugDisassembleConstructor, 1, 1) \
565  F(FunctionGetInferredName, 1, 1) \
566  F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \
567  F(LiveEditGatherCompileInfo, 2, 1) \
568  F(LiveEditReplaceScript, 3, 1) \
569  F(LiveEditReplaceFunctionCode, 2, 1) \
570  F(LiveEditFunctionSourceUpdated, 1, 1) \
571  F(LiveEditFunctionSetScript, 2, 1) \
572  F(LiveEditReplaceRefToNestedFunction, 3, 1) \
573  F(LiveEditPatchFunctionPositions, 2, 1) \
574  F(LiveEditCheckAndDropActivations, 2, 1) \
575  F(LiveEditCompareStrings, 2, 1) \
576  F(LiveEditRestartFrame, 2, 1) \
577  F(GetFunctionCodePositionFromSource, 2, 1) \
578  F(ExecuteInDebugContext, 2, 1) \
579  \
580  F(SetFlags, 1, 1) \
581  F(CollectGarbage, 1, 1) \
582  F(GetHeapUsage, 0, 1)
583 
584 
585 #ifdef V8_I18N_SUPPORT
586 #define RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F) \
587  /* i18n support */ \
588  /* Standalone, helper methods. */ \
589  F(CanonicalizeLanguageTag, 1, 1) \
590  F(AvailableLocalesOf, 1, 1) \
591  F(GetDefaultICULocale, 0, 1) \
592  F(GetLanguageTagVariants, 1, 1) \
593  F(IsInitializedIntlObject, 1, 1) \
594  F(IsInitializedIntlObjectOfType, 2, 1) \
595  F(MarkAsInitializedIntlObjectOfType, 3, 1) \
596  F(GetImplFromInitializedIntlObject, 1, 1) \
597  \
598  /* Date format and parse. */ \
599  F(CreateDateTimeFormat, 3, 1) \
600  F(InternalDateFormat, 2, 1) \
601  F(InternalDateParse, 2, 1) \
602  \
603  /* Number format and parse. */ \
604  F(CreateNumberFormat, 3, 1) \
605  F(InternalNumberFormat, 2, 1) \
606  F(InternalNumberParse, 2, 1) \
607  \
608  /* Collator. */ \
609  F(CreateCollator, 3, 1) \
610  F(InternalCompare, 3, 1) \
611  \
612  /* String.prototype.normalize. */ \
613  F(StringNormalize, 2, 1) \
614  \
615  /* Break iterator. */ \
616  F(CreateBreakIterator, 3, 1) \
617  F(BreakIteratorAdoptText, 2, 1) \
618  F(BreakIteratorFirst, 1, 1) \
619  F(BreakIteratorNext, 1, 1) \
620  F(BreakIteratorCurrent, 1, 1) \
621  F(BreakIteratorBreakType, 1, 1)
622 
623 #else
624 #define RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F)
625 #endif
626 
627 
628 #ifdef DEBUG
629 #define RUNTIME_FUNCTION_LIST_DEBUG(F) \
630  /* Testing */ \
631  F(ListNatives, 0, 1)
632 #else
633 #define RUNTIME_FUNCTION_LIST_DEBUG(F)
634 #endif
635 
636 // ----------------------------------------------------------------------------
637 // RUNTIME_FUNCTION_LIST defines all runtime functions accessed
638 // either directly by id (via the code generator), or indirectly
639 // via a native call by name (from within JS code).
640 // Entries have the form F(name, number of arguments, number of return values).
641 
642 #define RUNTIME_FUNCTION_LIST_RETURN_OBJECT(F) \
643  RUNTIME_FUNCTION_LIST_ALWAYS_1(F) \
644  RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \
645  RUNTIME_FUNCTION_LIST_ALWAYS_3(F) \
646  RUNTIME_FUNCTION_LIST_DEBUG(F) \
647  RUNTIME_FUNCTION_LIST_DEBUGGER(F) \
648  RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F)
649 
650 
651 #define RUNTIME_FUNCTION_LIST(F) \
652  RUNTIME_FUNCTION_LIST_RETURN_OBJECT(F) \
653  RUNTIME_FUNCTION_LIST_RETURN_PAIR(F)
654 
655 // ----------------------------------------------------------------------------
656 // INLINE_FUNCTION_LIST defines all inlined functions accessed
657 // with a native call of the form %_name from within JS code.
658 // Entries have the form F(name, number of arguments, number of return values).
659 #define INLINE_FUNCTION_LIST(F) \
660  F(IsSmi, 1, 1) \
661  F(IsNonNegativeSmi, 1, 1) \
662  F(IsArray, 1, 1) \
663  F(IsRegExp, 1, 1) \
664  F(IsConstructCall, 0, 1) \
665  F(CallFunction, -1 /* receiver + n args + function */, 1) \
666  F(ArgumentsLength, 0, 1) \
667  F(Arguments, 1, 1) \
668  F(ValueOf, 1, 1) \
669  F(SetValueOf, 2, 1) \
670  F(DateField, 2 /* date object, field index */, 1) \
671  F(StringCharFromCode, 1, 1) \
672  F(StringCharAt, 2, 1) \
673  F(OneByteSeqStringSetChar, 3, 1) \
674  F(TwoByteSeqStringSetChar, 3, 1) \
675  F(ObjectEquals, 2, 1) \
676  F(IsObject, 1, 1) \
677  F(IsFunction, 1, 1) \
678  F(IsUndetectableObject, 1, 1) \
679  F(IsSpecObject, 1, 1) \
680  F(IsStringWrapperSafeForDefaultValueOf, 1, 1) \
681  F(MathPow, 2, 1) \
682  F(IsMinusZero, 1, 1) \
683  F(HasCachedArrayIndex, 1, 1) \
684  F(GetCachedArrayIndex, 1, 1) \
685  F(FastOneByteArrayJoin, 2, 1) \
686  F(GeneratorNext, 2, 1) \
687  F(GeneratorThrow, 2, 1) \
688  F(DebugBreakInOptimizedCode, 0, 1) \
689  F(ClassOf, 1, 1) \
690  F(StringCharCodeAt, 2, 1) \
691  F(StringAdd, 2, 1) \
692  F(SubString, 3, 1) \
693  F(StringCompare, 2, 1) \
694  F(RegExpExec, 4, 1) \
695  F(RegExpConstructResult, 3, 1) \
696  F(GetFromCache, 2, 1) \
697  F(NumberToString, 1, 1) \
698  F(DebugIsActive, 0, 1)
699 
700 
701 // ----------------------------------------------------------------------------
702 // INLINE_OPTIMIZED_FUNCTION_LIST defines all inlined functions accessed
703 // with a native call of the form %_name from within JS code that also have
704 // a corresponding runtime function, that is called from non-optimized code.
705 // For the benefit of (fuzz) tests, the runtime version can also be called
706 // directly as %name (i.e. without the leading underscore).
707 // Entries have the form F(name, number of arguments, number of return values).
708 #define INLINE_OPTIMIZED_FUNCTION_LIST(F) \
709  /* Typed Arrays */ \
710  F(TypedArrayInitialize, 5, 1) \
711  F(DataViewInitialize, 4, 1) \
712  F(MaxSmi, 0, 1) \
713  F(TypedArrayMaxSizeInHeap, 0, 1) \
714  F(ArrayBufferViewGetByteLength, 1, 1) \
715  F(ArrayBufferViewGetByteOffset, 1, 1) \
716  F(TypedArrayGetLength, 1, 1) \
717  /* ArrayBuffer */ \
718  F(ArrayBufferGetByteLength, 1, 1) \
719  /* Maths */ \
720  F(ConstructDouble, 2, 1) \
721  F(DoubleHi, 1, 1) \
722  F(DoubleLo, 1, 1) \
723  F(MathSqrtRT, 1, 1) \
724  F(MathLogRT, 1, 1)
725 
726 
727 //---------------------------------------------------------------------------
728 // Runtime provides access to all C++ runtime functions.
729 
730 class RuntimeState {
731  public:
732  StaticResource<ConsStringIteratorOp>* string_iterator() {
733  return &string_iterator_;
734  }
735  unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() {
736  return &to_upper_mapping_;
737  }
738  unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() {
739  return &to_lower_mapping_;
740  }
741  ConsStringIteratorOp* string_iterator_compare_x() {
742  return &string_iterator_compare_x_;
743  }
744  ConsStringIteratorOp* string_iterator_compare_y() {
745  return &string_iterator_compare_y_;
746  }
747  ConsStringIteratorOp* string_locale_compare_it1() {
748  return &string_locale_compare_it1_;
749  }
750  ConsStringIteratorOp* string_locale_compare_it2() {
751  return &string_locale_compare_it2_;
752  }
753 
754  private:
755  RuntimeState() {}
756  // Non-reentrant string buffer for efficient general use in the runtime.
757  StaticResource<ConsStringIteratorOp> string_iterator_;
758  unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_;
759  unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_;
760  ConsStringIteratorOp string_iterator_compare_x_;
761  ConsStringIteratorOp string_iterator_compare_y_;
762  ConsStringIteratorOp string_locale_compare_it1_;
763  ConsStringIteratorOp string_locale_compare_it2_;
764 
765  friend class Isolate;
766  friend class Runtime;
767 
768  DISALLOW_COPY_AND_ASSIGN(RuntimeState);
769 };
770 
771 
772 class Runtime : public AllStatic {
773  public:
774  enum FunctionId {
775 #define F(name, nargs, ressize) k##name,
776  RUNTIME_FUNCTION_LIST(F) INLINE_OPTIMIZED_FUNCTION_LIST(F)
777 #undef F
778 #define F(name, nargs, ressize) kInline##name,
779  INLINE_FUNCTION_LIST(F)
780 #undef F
781 #define F(name, nargs, ressize) kInlineOptimized##name,
782  INLINE_OPTIMIZED_FUNCTION_LIST(F)
783 #undef F
784  kNumFunctions,
785  kFirstInlineFunction = kInlineIsSmi
786  };
787 
788  enum IntrinsicType { RUNTIME, INLINE, INLINE_OPTIMIZED };
789 
790  // Intrinsic function descriptor.
791  struct Function {
792  FunctionId function_id;
793  IntrinsicType intrinsic_type;
794  // The JS name of the function.
795  const char* name;
796 
797  // The C++ (native) entry point. NULL if the function is inlined.
798  byte* entry;
799 
800  // The number of arguments expected. nargs is -1 if the function takes
801  // a variable number of arguments.
802  int nargs;
803  // Size of result. Most functions return a single pointer, size 1.
804  int result_size;
805  };
806 
807  static const int kNotFound = -1;
808 
809  // Add internalized strings for all the intrinsic function names to a
810  // StringDictionary.
811  static void InitializeIntrinsicFunctionNames(Isolate* isolate,
812  Handle<NameDictionary> dict);
813 
814  // Get the intrinsic function with the given name, which must be internalized.
815  static const Function* FunctionForName(Handle<String> name);
816 
817  // Get the intrinsic function with the given FunctionId.
818  static const Function* FunctionForId(FunctionId id);
819 
820  // Get the intrinsic function with the given function entry address.
821  static const Function* FunctionForEntry(Address ref);
822 
823  // General-purpose helper functions for runtime system.
824  static int StringMatch(Isolate* isolate, Handle<String> sub,
825  Handle<String> pat, int index);
826 
827  // TODO(1240886): Some of the following methods are *not* handle safe, but
828  // accept handle arguments. This seems fragile.
829 
830  // Support getting the characters in a string using [] notation as
831  // in Firefox/SpiderMonkey, Safari and Opera.
832  MUST_USE_RESULT static MaybeHandle<Object> GetElementOrCharAt(
833  Isolate* isolate, Handle<Object> object, uint32_t index);
834 
835  MUST_USE_RESULT static MaybeHandle<Object> SetObjectProperty(
836  Isolate* isolate, Handle<Object> object, Handle<Object> key,
837  Handle<Object> value, StrictMode strict_mode);
838 
839  MUST_USE_RESULT static MaybeHandle<Object> DefineObjectProperty(
840  Handle<JSObject> object, Handle<Object> key, Handle<Object> value,
841  PropertyAttributes attr);
842 
843  MUST_USE_RESULT static MaybeHandle<Object> DeleteObjectProperty(
844  Isolate* isolate, Handle<JSReceiver> object, Handle<Object> key,
845  JSReceiver::DeleteMode mode);
846 
847  MUST_USE_RESULT static MaybeHandle<Object> HasObjectProperty(
848  Isolate* isolate, Handle<JSReceiver> object, Handle<Object> key);
849 
850  MUST_USE_RESULT static MaybeHandle<Object> GetObjectProperty(
851  Isolate* isolate, Handle<Object> object, Handle<Object> key);
852 
853  static void SetupArrayBuffer(Isolate* isolate,
854  Handle<JSArrayBuffer> array_buffer,
855  bool is_external, void* data,
856  size_t allocated_length);
857 
858  static bool SetupArrayBufferAllocatingData(Isolate* isolate,
859  Handle<JSArrayBuffer> array_buffer,
860  size_t allocated_length,
861  bool initialize = true);
862 
863  static void NeuterArrayBuffer(Handle<JSArrayBuffer> array_buffer);
864 
865  static void FreeArrayBuffer(Isolate* isolate,
866  JSArrayBuffer* phantom_array_buffer);
867 
868  enum TypedArrayId {
869  // arrayIds below should be synchromized with typedarray.js natives.
870  ARRAY_ID_UINT8 = 1,
871  ARRAY_ID_INT8 = 2,
872  ARRAY_ID_UINT16 = 3,
873  ARRAY_ID_INT16 = 4,
874  ARRAY_ID_UINT32 = 5,
875  ARRAY_ID_INT32 = 6,
876  ARRAY_ID_FLOAT32 = 7,
877  ARRAY_ID_FLOAT64 = 8,
878  ARRAY_ID_UINT8_CLAMPED = 9,
879  ARRAY_ID_FIRST = ARRAY_ID_UINT8,
880  ARRAY_ID_LAST = ARRAY_ID_UINT8_CLAMPED
881  };
882 
883  static void ArrayIdToTypeAndSize(int array_id, ExternalArrayType* type,
884  ElementsKind* external_elements_kind,
885  ElementsKind* fixed_elements_kind,
886  size_t* element_size);
887 
888  // Used in runtime.cc and hydrogen's VisitArrayLiteral.
889  MUST_USE_RESULT static MaybeHandle<Object> CreateArrayLiteralBoilerplate(
890  Isolate* isolate, Handle<FixedArray> literals,
891  Handle<FixedArray> elements);
892 };
893 
894 
895 //---------------------------------------------------------------------------
896 // Constants used by interface to runtime functions.
897 
898 class AllocateDoubleAlignFlag : public BitField<bool, 0, 1> {};
899 class AllocateTargetSpace : public BitField<AllocationSpace, 1, 3> {};
900 
901 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
902 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
903 class DeclareGlobalsStrictMode : public BitField<StrictMode, 2, 1> {};
904 }
905 } // namespace v8::internal
906 
907 #endif // V8_RUNTIME_H_
uint32_t
v8::internal::RuntimeState::to_lower_mapping_
unibrow::Mapping< unibrow::ToLowercase, 128 > to_lower_mapping_
Definition: runtime.h:759
v8::internal::RuntimeState::string_iterator_compare_y_
ConsStringIteratorOp string_iterator_compare_y_
Definition: runtime.h:761
v8::internal::RuntimeState::string_locale_compare_it2
ConsStringIteratorOp * string_locale_compare_it2()
Definition: runtime.h:750
v8::internal::RuntimeState::to_upper_mapping_
unibrow::Mapping< unibrow::ToUppercase, 128 > to_upper_mapping_
Definition: runtime.h:758
v8::internal::RuntimeState::string_iterator_compare_y
ConsStringIteratorOp * string_iterator_compare_y()
Definition: runtime.h:744
v8::internal::RuntimeState::to_upper_mapping
unibrow::Mapping< unibrow::ToUppercase, 128 > * to_upper_mapping()
Definition: runtime.h:735
v8::internal::RuntimeState::string_locale_compare_it2_
ConsStringIteratorOp string_locale_compare_it2_
Definition: runtime.h:763
v8::internal::RuntimeState::string_iterator_
StaticResource< ConsStringIteratorOp > string_iterator_
Definition: runtime.h:757
v8::internal::RuntimeState::string_iterator_compare_x_
ConsStringIteratorOp string_iterator_compare_x_
Definition: runtime.h:760
v8::internal::RuntimeState::to_lower_mapping
unibrow::Mapping< unibrow::ToLowercase, 128 > * to_lower_mapping()
Definition: runtime.h:738
v8::internal::RuntimeState::string_locale_compare_it1_
ConsStringIteratorOp string_locale_compare_it1_
Definition: runtime.h:762
v8::internal::RuntimeState::string_iterator
StaticResource< ConsStringIteratorOp > * string_iterator()
Definition: runtime.h:732
v8::internal::RuntimeState::string_iterator_compare_x
ConsStringIteratorOp * string_iterator_compare_x()
Definition: runtime.h:741
v8::internal::RuntimeState::string_locale_compare_it1
ConsStringIteratorOp * string_locale_compare_it1()
Definition: runtime.h:747
v8::internal::RuntimeState::DISALLOW_COPY_AND_ASSIGN
DISALLOW_COPY_AND_ASSIGN(RuntimeState)
v8::internal::Runtime::StringMatch
static int StringMatch(Isolate *isolate, Handle< String > sub, Handle< String > pat, int index)
Definition: runtime-regexp.cc:1094
v8::internal::Runtime::kNotFound
static const int kNotFound
Definition: runtime.h:807
v8::internal::Runtime::FunctionForId
static const Function * FunctionForId(FunctionId id)
Definition: runtime.cc:9312
v8::internal::Runtime::InitializeIntrinsicFunctionNames
static void InitializeIntrinsicFunctionNames(Isolate *isolate, Handle< NameDictionary > dict)
Definition: runtime.cc:9273
v8::internal::Runtime::HasObjectProperty
static MUST_USE_RESULT MaybeHandle< Object > HasObjectProperty(Isolate *isolate, Handle< JSReceiver > object, Handle< Object > key)
Definition: runtime.cc:1891
v8::internal::Runtime::SetObjectProperty
static MUST_USE_RESULT MaybeHandle< Object > SetObjectProperty(Isolate *isolate, Handle< Object > object, Handle< Object > key, Handle< Object > value, StrictMode strict_mode)
Definition: runtime.cc:2181
v8::internal::Runtime::NeuterArrayBuffer
static void NeuterArrayBuffer(Handle< JSArrayBuffer > array_buffer)
Definition: runtime-typedarray.cc:86
v8::internal::Runtime::FunctionForEntry
static const Function * FunctionForEntry(Address ref)
Definition: runtime.cc:9302
v8::internal::Runtime::SetupArrayBuffer
static void SetupArrayBuffer(Isolate *isolate, Handle< JSArrayBuffer > array_buffer, bool is_external, void *data, size_t allocated_length)
Definition: runtime-typedarray.cc:35
v8::internal::Runtime::GetObjectProperty
static MUST_USE_RESULT MaybeHandle< Object > GetObjectProperty(Isolate *isolate, Handle< Object > object, Handle< Object > key)
Definition: runtime.cc:1912
v8::internal::Runtime::GetElementOrCharAt
static MUST_USE_RESULT MaybeHandle< Object > GetElementOrCharAt(Isolate *isolate, Handle< Object > object, uint32_t index)
Definition: runtime.cc:1850
v8::internal::Runtime::ArrayIdToTypeAndSize
static void ArrayIdToTypeAndSize(int array_id, ExternalArrayType *type, ElementsKind *external_elements_kind, ElementsKind *fixed_elements_kind, size_t *element_size)
Definition: runtime-typedarray.cc:186
v8::internal::Runtime::CreateArrayLiteralBoilerplate
static MUST_USE_RESULT MaybeHandle< Object > CreateArrayLiteralBoilerplate(Isolate *isolate, Handle< FixedArray > literals, Handle< FixedArray > elements)
Definition: runtime.cc:248
v8::internal::Runtime::FunctionForName
static const Function * FunctionForName(Handle< String > name)
Definition: runtime.cc:9290
v8::internal::Runtime::DefineObjectProperty
static MUST_USE_RESULT MaybeHandle< Object > DefineObjectProperty(Handle< JSObject > object, Handle< Object > key, Handle< Object > value, PropertyAttributes attr)
Definition: runtime.cc:2277
v8::internal::Runtime::DeleteObjectProperty
static MUST_USE_RESULT MaybeHandle< Object > DeleteObjectProperty(Isolate *isolate, Handle< JSReceiver > object, Handle< Object > key, JSReceiver::DeleteMode mode)
Definition: runtime.cc:2328
v8::internal::Runtime::FreeArrayBuffer
static void FreeArrayBuffer(Isolate *isolate, JSArrayBuffer *phantom_array_buffer)
Definition: runtime-typedarray.cc:15
v8::internal::Runtime::SetupArrayBufferAllocatingData
static bool SetupArrayBufferAllocatingData(Isolate *isolate, Handle< JSArrayBuffer > array_buffer, size_t allocated_length, bool initialize=true)
Definition: runtime-typedarray.cc:59
name
enable harmony numeric enable harmony object literal extensions Optimize object Array DOM strings and string trace pretenuring decisions of HAllocate instructions Enables optimizations which favor memory size over execution speed maximum source size in bytes considered for a single inlining maximum cumulative number of AST nodes considered for inlining trace the tracking of allocation sites deoptimize every n garbage collections perform array bounds checks elimination analyze liveness of environment slots and zap dead values flushes the cache of optimized code for closures on every GC allow uint32 values on optimize frames if they are used only in safe operations track concurrent recompilation artificial compilation delay in ms do not emit check maps for constant values that have a leaf deoptimize the optimized code if the layout of the maps changes enable context specialization in TurboFan execution budget before interrupt is triggered max percentage of megamorphic generic ICs to allow optimization enable use of SAHF instruction if enable use of VFP3 instructions if available enable use of NEON instructions if enable use of SDIV and UDIV instructions if enable use of MLS instructions if enable loading bit constant by means of movw movt instruction enable unaligned accesses for enable use of d16 d31 registers on ARM this requires VFP3 force all emitted branches to be in long enable alignment of csp to bytes on platforms which prefer the register to always be expose gc extension under the specified name show built in functions in stack traces use random jit cookie to mask large constants minimum length for automatic enable preparsing CPU profiler sampling interval in microseconds trace out of bounds accesses to external arrays default size of stack region v8 is allowed to maximum length of function source code printed in a stack trace min size of a semi the new space consists of two semi spaces print one trace line following each garbage collection do not print trace line after scavenger collection print cumulative GC statistics in name
Definition: flag-definitions.h:504
literals
enable harmony numeric literals(0o77, 0b11)") DEFINE_BOOL(harmony_object_literals
mode
enable harmony numeric enable harmony object literal extensions Optimize object Array DOM strings and string trace pretenuring decisions of HAllocate instructions Enables optimizations which favor memory size over execution speed maximum source size in bytes considered for a single inlining maximum cumulative number of AST nodes considered for inlining trace the tracking of allocation sites deoptimize every n garbage collections perform array bounds checks elimination analyze liveness of environment slots and zap dead values flushes the cache of optimized code for closures on every GC allow uint32 values on optimize frames if they are used only in safe operations track concurrent recompilation artificial compilation delay in ms do not emit check maps for constant values that have a leaf deoptimize the optimized code if the layout of the maps changes enable context specialization in TurboFan execution budget before interrupt is triggered max percentage of megamorphic generic ICs to allow optimization enable use of SAHF instruction if enable use of VFP3 instructions if available enable use of NEON instructions if enable use of SDIV and UDIV instructions if enable use of MLS instructions if enable loading bit constant by means of movw movt instruction enable unaligned accesses for enable use of d16 d31 registers on ARM this requires VFP3 force all emitted branches to be in long mode(MIPS only)") DEFINE_BOOL(enable_always_align_csp
MUST_USE_RESULT
#define MUST_USE_RESULT
Definition: macros.h:266
v8::internal::Address
byte * Address
Definition: globals.h:101
v8
Debugger support for the V8 JavaScript engine.
Definition: accessors.cc:20
v8::ExternalArrayType
ExternalArrayType
Definition: v8.h:2217
PropertyAttributes
PropertyAttributes
Definition: property-details.h:13
INLINE_OPTIMIZED_FUNCTION_LIST
#define INLINE_OPTIMIZED_FUNCTION_LIST(F)
Definition: runtime.h:708
INLINE_FUNCTION_LIST
#define INLINE_FUNCTION_LIST(F)
Definition: runtime.h:659
v8::internal::Runtime::Function::intrinsic_type
IntrinsicType intrinsic_type
Definition: runtime.h:793