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v8/tools/v8heapconst.py
Mythri aed96e7b04 [Turbofan] Simplify handling of hole check bytecodes in bytecode-graph-builder. 
ThrowIfHole bytecodes were handled by introducing deopt points to check
for a hole. To avoid deopt loops a hole check protector was used to
generate control flow if there was a deopt due to a hole. However, the
normal control flow version should be as fast as the deopt version
in general. The deopt version could potentially consume less compile time
but it may not be worth the complexity added. Hence simplifying it to
only construct the control flow.

Bug: v8:6383
Change-Id: Icace11f7a6e21e64e1cebd104496e3f559bc85f7
Reviewed-on: https://chromium-review.googlesource.com/525573
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45783}
2017-06-08 08:53:16 +00:00

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# Copyright 2017 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can
# be found in the LICENSE file.
# This file is automatically generated by mkgrokdump and should not
# be modified manually.
# List of known V8 instance types.
INSTANCE_TYPES = {
0: "INTERNALIZED_STRING_TYPE",
2: "EXTERNAL_INTERNALIZED_STRING_TYPE",
8: "ONE_BYTE_INTERNALIZED_STRING_TYPE",
10: "EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
18: "EXTERNAL_INTERNALIZED_STRING_WITH_ONE_BYTE_DATA_TYPE",
34: "SHORT_EXTERNAL_INTERNALIZED_STRING_TYPE",
42: "SHORT_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
50: "SHORT_EXTERNAL_INTERNALIZED_STRING_WITH_ONE_BYTE_DATA_TYPE",
64: "STRING_TYPE",
65: "CONS_STRING_TYPE",
66: "EXTERNAL_STRING_TYPE",
67: "SLICED_STRING_TYPE",
69: "THIN_STRING_TYPE",
72: "ONE_BYTE_STRING_TYPE",
73: "CONS_ONE_BYTE_STRING_TYPE",
74: "EXTERNAL_ONE_BYTE_STRING_TYPE",
75: "SLICED_ONE_BYTE_STRING_TYPE",
77: "THIN_ONE_BYTE_STRING_TYPE",
82: "EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE",
98: "SHORT_EXTERNAL_STRING_TYPE",
106: "SHORT_EXTERNAL_ONE_BYTE_STRING_TYPE",
114: "SHORT_EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE",
128: "SYMBOL_TYPE",
129: "HEAP_NUMBER_TYPE",
130: "ODDBALL_TYPE",
131: "MAP_TYPE",
132: "CODE_TYPE",
133: "MUTABLE_HEAP_NUMBER_TYPE",
134: "FOREIGN_TYPE",
135: "BYTE_ARRAY_TYPE",
136: "BYTECODE_ARRAY_TYPE",
137: "FREE_SPACE_TYPE",
138: "FIXED_INT8_ARRAY_TYPE",
139: "FIXED_UINT8_ARRAY_TYPE",
140: "FIXED_INT16_ARRAY_TYPE",
141: "FIXED_UINT16_ARRAY_TYPE",
142: "FIXED_INT32_ARRAY_TYPE",
143: "FIXED_UINT32_ARRAY_TYPE",
144: "FIXED_FLOAT32_ARRAY_TYPE",
145: "FIXED_FLOAT64_ARRAY_TYPE",
146: "FIXED_UINT8_CLAMPED_ARRAY_TYPE",
147: "FIXED_DOUBLE_ARRAY_TYPE",
148: "FILLER_TYPE",
149: "ACCESSOR_INFO_TYPE",
150: "ACCESSOR_PAIR_TYPE",
151: "ACCESS_CHECK_INFO_TYPE",
152: "INTERCEPTOR_INFO_TYPE",
153: "FUNCTION_TEMPLATE_INFO_TYPE",
154: "OBJECT_TEMPLATE_INFO_TYPE",
155: "ALLOCATION_SITE_TYPE",
156: "ALLOCATION_MEMENTO_TYPE",
157: "SCRIPT_TYPE",
158: "ALIASED_ARGUMENTS_ENTRY_TYPE",
159: "PROMISE_RESOLVE_THENABLE_JOB_INFO_TYPE",
160: "PROMISE_REACTION_JOB_INFO_TYPE",
161: "DEBUG_INFO_TYPE",
162: "STACK_FRAME_INFO_TYPE",
163: "PROTOTYPE_INFO_TYPE",
164: "TUPLE2_TYPE",
165: "TUPLE3_TYPE",
166: "CONTEXT_EXTENSION_TYPE",
167: "MODULE_TYPE",
168: "MODULE_INFO_ENTRY_TYPE",
169: "ASYNC_GENERATOR_REQUEST_TYPE",
170: "FIXED_ARRAY_TYPE",
171: "TRANSITION_ARRAY_TYPE",
172: "SHARED_FUNCTION_INFO_TYPE",
173: "CELL_TYPE",
174: "WEAK_CELL_TYPE",
175: "PROPERTY_CELL_TYPE",
176: "SMALL_ORDERED_HASH_SET_TYPE",
177: "PADDING_TYPE_1",
178: "PADDING_TYPE_2",
179: "PADDING_TYPE_3",
180: "PADDING_TYPE_4",
181: "JS_PROXY_TYPE",
182: "JS_GLOBAL_OBJECT_TYPE",
183: "JS_GLOBAL_PROXY_TYPE",
184: "JS_SPECIAL_API_OBJECT_TYPE",
185: "JS_VALUE_TYPE",
186: "JS_MESSAGE_OBJECT_TYPE",
187: "JS_DATE_TYPE",
188: "JS_API_OBJECT_TYPE",
189: "JS_OBJECT_TYPE",
190: "JS_ARGUMENTS_TYPE",
191: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
192: "JS_GENERATOR_OBJECT_TYPE",
193: "JS_ASYNC_GENERATOR_OBJECT_TYPE",
194: "JS_MODULE_NAMESPACE_TYPE",
195: "JS_ARRAY_TYPE",
196: "JS_ARRAY_BUFFER_TYPE",
197: "JS_TYPED_ARRAY_TYPE",
198: "JS_DATA_VIEW_TYPE",
199: "JS_SET_TYPE",
200: "JS_MAP_TYPE",
201: "JS_SET_ITERATOR_TYPE",
202: "JS_MAP_ITERATOR_TYPE",
203: "JS_WEAK_MAP_TYPE",
204: "JS_WEAK_SET_TYPE",
205: "JS_PROMISE_CAPABILITY_TYPE",
206: "JS_PROMISE_TYPE",
207: "JS_REGEXP_TYPE",
208: "JS_ERROR_TYPE",
209: "JS_ASYNC_FROM_SYNC_ITERATOR_TYPE",
210: "JS_STRING_ITERATOR_TYPE",
211: "JS_TYPED_ARRAY_KEY_ITERATOR_TYPE",
212: "JS_FAST_ARRAY_KEY_ITERATOR_TYPE",
213: "JS_GENERIC_ARRAY_KEY_ITERATOR_TYPE",
214: "JS_UINT8_ARRAY_KEY_VALUE_ITERATOR_TYPE",
215: "JS_INT8_ARRAY_KEY_VALUE_ITERATOR_TYPE",
216: "JS_UINT16_ARRAY_KEY_VALUE_ITERATOR_TYPE",
217: "JS_INT16_ARRAY_KEY_VALUE_ITERATOR_TYPE",
218: "JS_UINT32_ARRAY_KEY_VALUE_ITERATOR_TYPE",
219: "JS_INT32_ARRAY_KEY_VALUE_ITERATOR_TYPE",
220: "JS_FLOAT32_ARRAY_KEY_VALUE_ITERATOR_TYPE",
221: "JS_FLOAT64_ARRAY_KEY_VALUE_ITERATOR_TYPE",
222: "JS_UINT8_CLAMPED_ARRAY_KEY_VALUE_ITERATOR_TYPE",
223: "JS_FAST_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE",
224: "JS_FAST_HOLEY_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE",
225: "JS_FAST_ARRAY_KEY_VALUE_ITERATOR_TYPE",
226: "JS_FAST_HOLEY_ARRAY_KEY_VALUE_ITERATOR_TYPE",
227: "JS_FAST_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE",
228: "JS_FAST_HOLEY_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE",
229: "JS_GENERIC_ARRAY_KEY_VALUE_ITERATOR_TYPE",
230: "JS_UINT8_ARRAY_VALUE_ITERATOR_TYPE",
231: "JS_INT8_ARRAY_VALUE_ITERATOR_TYPE",
232: "JS_UINT16_ARRAY_VALUE_ITERATOR_TYPE",
233: "JS_INT16_ARRAY_VALUE_ITERATOR_TYPE",
234: "JS_UINT32_ARRAY_VALUE_ITERATOR_TYPE",
235: "JS_INT32_ARRAY_VALUE_ITERATOR_TYPE",
236: "JS_FLOAT32_ARRAY_VALUE_ITERATOR_TYPE",
237: "JS_FLOAT64_ARRAY_VALUE_ITERATOR_TYPE",
238: "JS_UINT8_CLAMPED_ARRAY_VALUE_ITERATOR_TYPE",
239: "JS_FAST_SMI_ARRAY_VALUE_ITERATOR_TYPE",
240: "JS_FAST_HOLEY_SMI_ARRAY_VALUE_ITERATOR_TYPE",
241: "JS_FAST_ARRAY_VALUE_ITERATOR_TYPE",
242: "JS_FAST_HOLEY_ARRAY_VALUE_ITERATOR_TYPE",
243: "JS_FAST_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE",
244: "JS_FAST_HOLEY_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE",
245: "JS_GENERIC_ARRAY_VALUE_ITERATOR_TYPE",
246: "JS_BOUND_FUNCTION_TYPE",
247: "JS_FUNCTION_TYPE",
}
# List of known V8 maps.
KNOWN_MAPS = {
0x02201: (137, "FreeSpaceMap"),
0x02259: (131, "MetaMap"),
0x022b1: (130, "NullMap"),
0x02309: (170, "FixedArrayMap"),
0x02361: (8, "OneByteInternalizedStringMap"),
0x023b9: (148, "OnePointerFillerMap"),
0x02411: (148, "TwoPointerFillerMap"),
0x02469: (130, "UninitializedMap"),
0x024c1: (130, "UndefinedMap"),
0x02519: (129, "HeapNumberMap"),
0x02571: (130, "TheHoleMap"),
0x025c9: (130, "BooleanMap"),
0x02621: (135, "ByteArrayMap"),
0x02679: (170, "FixedCOWArrayMap"),
0x026d1: (170, "HashTableMap"),
0x02729: (128, "SymbolMap"),
0x02781: (72, "OneByteStringMap"),
0x027d9: (170, "ScopeInfoMap"),
0x02831: (172, "SharedFunctionInfoMap"),
0x02889: (132, "CodeMap"),
0x028e1: (170, "FunctionContextMap"),
0x02939: (173, "CellMap"),
0x02991: (174, "WeakCellMap"),
0x029e9: (175, "GlobalPropertyCellMap"),
0x02a41: (134, "ForeignMap"),
0x02a99: (171, "TransitionArrayMap"),
0x02af1: (130, "ArgumentsMarkerMap"),
0x02b49: (130, "ExceptionMap"),
0x02ba1: (130, "TerminationExceptionMap"),
0x02bf9: (130, "OptimizedOutMap"),
0x02c51: (130, "StaleRegisterMap"),
0x02ca9: (170, "NativeContextMap"),
0x02d01: (170, "ModuleContextMap"),
0x02d59: (170, "EvalContextMap"),
0x02db1: (170, "ScriptContextMap"),
0x02e09: (170, "BlockContextMap"),
0x02e61: (170, "CatchContextMap"),
0x02eb9: (170, "WithContextMap"),
0x02f11: (147, "FixedDoubleArrayMap"),
0x02f69: (133, "MutableHeapNumberMap"),
0x02fc1: (170, "OrderedHashTableMap"),
0x03019: (170, "SloppyArgumentsElementsMap"),
0x03071: (176, "SmallOrderedHashSetMap"),
0x030c9: (186, "JSMessageObjectMap"),
0x03121: (136, "BytecodeArrayMap"),
0x03179: (170, "ModuleInfoMap"),
0x031d1: (173, "NoClosuresCellMap"),
0x03229: (173, "OneClosureCellMap"),
0x03281: (173, "ManyClosuresCellMap"),
0x032d9: (64, "StringMap"),
0x03331: (73, "ConsOneByteStringMap"),
0x03389: (65, "ConsStringMap"),
0x033e1: (77, "ThinOneByteStringMap"),
0x03439: (69, "ThinStringMap"),
0x03491: (67, "SlicedStringMap"),
0x034e9: (75, "SlicedOneByteStringMap"),
0x03541: (66, "ExternalStringMap"),
0x03599: (82, "ExternalStringWithOneByteDataMap"),
0x035f1: (74, "ExternalOneByteStringMap"),
0x03649: (98, "ShortExternalStringMap"),
0x036a1: (114, "ShortExternalStringWithOneByteDataMap"),
0x036f9: (0, "InternalizedStringMap"),
0x03751: (2, "ExternalInternalizedStringMap"),
0x037a9: (18, "ExternalInternalizedStringWithOneByteDataMap"),
0x03801: (10, "ExternalOneByteInternalizedStringMap"),
0x03859: (34, "ShortExternalInternalizedStringMap"),
0x038b1: (50, "ShortExternalInternalizedStringWithOneByteDataMap"),
0x03909: (42, "ShortExternalOneByteInternalizedStringMap"),
0x03961: (106, "ShortExternalOneByteStringMap"),
0x039b9: (139, "FixedUint8ArrayMap"),
0x03a11: (138, "FixedInt8ArrayMap"),
0x03a69: (141, "FixedUint16ArrayMap"),
0x03ac1: (140, "FixedInt16ArrayMap"),
0x03b19: (143, "FixedUint32ArrayMap"),
0x03b71: (142, "FixedInt32ArrayMap"),
0x03bc9: (144, "FixedFloat32ArrayMap"),
0x03c21: (145, "FixedFloat64ArrayMap"),
0x03c79: (146, "FixedUint8ClampedArrayMap"),
0x03cd1: (157, "ScriptMap"),
0x03d29: (170, "FeedbackVectorMap"),
0x03d81: (170, "DebugEvaluateContextMap"),
0x03dd9: (170, "ScriptContextTableMap"),
0x03e31: (170, "UnseededNumberDictionaryMap"),
0x03e89: (189, "ExternalMap"),
0x03ee1: (106, "NativeSourceStringMap"),
0x03f39: (152, "InterceptorInfoMap"),
0x03f91: (205, "JSPromiseCapabilityMap"),
0x03fe9: (149, "AccessorInfoMap"),
0x04041: (150, "AccessorPairMap"),
0x04099: (151, "AccessCheckInfoMap"),
0x040f1: (153, "FunctionTemplateInfoMap"),
0x04149: (154, "ObjectTemplateInfoMap"),
0x041a1: (155, "AllocationSiteMap"),
0x041f9: (156, "AllocationMementoMap"),
0x04251: (158, "AliasedArgumentsEntryMap"),
0x042a9: (159, "PromiseResolveThenableJobInfoMap"),
0x04301: (160, "PromiseReactionJobInfoMap"),
0x04359: (161, "DebugInfoMap"),
0x043b1: (162, "StackFrameInfoMap"),
0x04409: (163, "PrototypeInfoMap"),
0x04461: (164, "Tuple2Map"),
0x044b9: (165, "Tuple3Map"),
0x04511: (166, "ContextExtensionMap"),
0x04569: (167, "ModuleMap"),
0x045c1: (168, "ModuleInfoEntryMap"),
0x04619: (169, "AsyncGeneratorRequestMap"),
}
# List of known V8 objects.
KNOWN_OBJECTS = {
("OLD_SPACE", 0x02201): "NullValue",
("OLD_SPACE", 0x02231): "EmptyDescriptorArray",
("OLD_SPACE", 0x02241): "EmptyFixedArray",
("OLD_SPACE", 0x02291): "UninitializedValue",
("OLD_SPACE", 0x02311): "UndefinedValue",
("OLD_SPACE", 0x02341): "NanValue",
("OLD_SPACE", 0x02351): "TheHoleValue",
("OLD_SPACE", 0x023a1): "HoleNanValue",
("OLD_SPACE", 0x023b1): "TrueValue",
("OLD_SPACE", 0x02421): "FalseValue",
("OLD_SPACE", 0x02471): "empty_string",
("OLD_SPACE", 0x02489): "EmptyScopeInfo",
("OLD_SPACE", 0x02499): "ArgumentsMarker",
("OLD_SPACE", 0x024f1): "Exception",
("OLD_SPACE", 0x02549): "TerminationException",
("OLD_SPACE", 0x025a9): "OptimizedOut",
("OLD_SPACE", 0x02601): "StaleRegister",
("OLD_SPACE", 0x02659): "EmptyByteArray",
("OLD_SPACE", 0x02669): "EmptyFixedUint8Array",
("OLD_SPACE", 0x02689): "EmptyFixedInt8Array",
("OLD_SPACE", 0x026a9): "EmptyFixedUint16Array",
("OLD_SPACE", 0x026c9): "EmptyFixedInt16Array",
("OLD_SPACE", 0x026e9): "EmptyFixedUint32Array",
("OLD_SPACE", 0x02709): "EmptyFixedInt32Array",
("OLD_SPACE", 0x02729): "EmptyFixedFloat32Array",
("OLD_SPACE", 0x02749): "EmptyFixedFloat64Array",
("OLD_SPACE", 0x02769): "EmptyFixedUint8ClampedArray",
("OLD_SPACE", 0x02789): "EmptyScript",
("OLD_SPACE", 0x02811): "UndefinedCell",
("OLD_SPACE", 0x02821): "EmptySloppyArgumentsElements",
("OLD_SPACE", 0x02841): "EmptySlowElementDictionary",
("OLD_SPACE", 0x02891): "EmptyPropertyCell",
("OLD_SPACE", 0x028b1): "EmptyWeakCell",
("OLD_SPACE", 0x028c9): "ArrayProtector",
("OLD_SPACE", 0x028e9): "IsConcatSpreadableProtector",
("OLD_SPACE", 0x028f9): "SpeciesProtector",
("OLD_SPACE", 0x02909): "StringLengthProtector",
("OLD_SPACE", 0x02929): "FastArrayIterationProtector",
("OLD_SPACE", 0x02939): "ArrayIteratorProtector",
("OLD_SPACE", 0x02959): "ArrayBufferNeuteringProtector",
("OLD_SPACE", 0x02979): "InfinityValue",
("OLD_SPACE", 0x02989): "MinusZeroValue",
("OLD_SPACE", 0x02999): "MinusInfinityValue",
}
# List of known V8 Frame Markers.
FRAME_MARKERS = (
"ENTRY",
"ENTRY_CONSTRUCT",
"EXIT",
"JAVA_SCRIPT",
"OPTIMIZED",
"WASM_COMPILED",
"WASM_TO_JS",
"JS_TO_WASM",
"WASM_INTERPRETER_ENTRY",
"INTERPRETED",
"STUB",
"STUB_FAILURE_TRAMPOLINE",
"BUILTIN_CONTINUATION",
"JAVA_SCRIPT_BUILTIN_CONTINUATION",
"INTERNAL",
"CONSTRUCT",
"ARGUMENTS_ADAPTOR",
"BUILTIN",
"BUILTIN_EXIT",
)
# This set of constants is generated from a shipping build.
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