Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 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 | #include "src/compiler/access-builder.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6 | |
| 7 | #include "src/contexts.h" |
| 8 | #include "src/frames.h" |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 9 | #include "src/handles-inl.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 10 | #include "src/heap/heap.h" |
| 11 | #include "src/type-cache.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 12 | |
| 13 | namespace v8 { |
| 14 | namespace internal { |
| 15 | namespace compiler { |
| 16 | |
| 17 | // static |
| 18 | FieldAccess AccessBuilder::ForMap() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 19 | FieldAccess access = {kTaggedBase, HeapObject::kMapOffset, |
| 20 | MaybeHandle<Name>(), Type::Any(), |
| 21 | MachineType::AnyTagged()}; |
| 22 | return access; |
| 23 | } |
| 24 | |
| 25 | |
| 26 | // static |
| 27 | FieldAccess AccessBuilder::ForHeapNumberValue() { |
| 28 | FieldAccess access = {kTaggedBase, HeapNumber::kValueOffset, |
| 29 | MaybeHandle<Name>(), TypeCache().Get().kFloat64, |
| 30 | MachineType::Float64()}; |
| 31 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 32 | } |
| 33 | |
| 34 | |
| 35 | // static |
| 36 | FieldAccess AccessBuilder::ForJSObjectProperties() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 37 | FieldAccess access = {kTaggedBase, JSObject::kPropertiesOffset, |
| 38 | MaybeHandle<Name>(), Type::Internal(), |
| 39 | MachineType::AnyTagged()}; |
| 40 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | |
| 44 | // static |
| 45 | FieldAccess AccessBuilder::ForJSObjectElements() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 46 | FieldAccess access = {kTaggedBase, JSObject::kElementsOffset, |
| 47 | MaybeHandle<Name>(), Type::Internal(), |
| 48 | MachineType::AnyTagged()}; |
| 49 | return access; |
| 50 | } |
| 51 | |
| 52 | |
| 53 | // static |
| 54 | FieldAccess AccessBuilder::ForJSObjectInObjectProperty(Handle<Map> map, |
| 55 | int index) { |
| 56 | int const offset = map->GetInObjectPropertyOffset(index); |
| 57 | FieldAccess access = {kTaggedBase, offset, MaybeHandle<Name>(), |
| 58 | Type::Tagged(), MachineType::AnyTagged()}; |
| 59 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 60 | } |
| 61 | |
| 62 | |
| 63 | // static |
| 64 | FieldAccess AccessBuilder::ForJSFunctionContext() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 65 | FieldAccess access = {kTaggedBase, JSFunction::kContextOffset, |
| 66 | MaybeHandle<Name>(), Type::Internal(), |
| 67 | MachineType::AnyTagged()}; |
| 68 | return access; |
| 69 | } |
| 70 | |
| 71 | |
| 72 | // static |
| 73 | FieldAccess AccessBuilder::ForJSFunctionSharedFunctionInfo() { |
| 74 | FieldAccess access = {kTaggedBase, JSFunction::kSharedFunctionInfoOffset, |
| 75 | Handle<Name>(), Type::Any(), MachineType::AnyTagged()}; |
| 76 | return access; |
| 77 | } |
| 78 | |
| 79 | |
| 80 | // static |
| 81 | FieldAccess AccessBuilder::ForJSArrayLength(ElementsKind elements_kind) { |
| 82 | TypeCache const& type_cache = TypeCache::Get(); |
| 83 | FieldAccess access = {kTaggedBase, JSArray::kLengthOffset, Handle<Name>(), |
| 84 | type_cache.kJSArrayLengthType, |
| 85 | MachineType::AnyTagged()}; |
| 86 | if (IsFastDoubleElementsKind(elements_kind)) { |
| 87 | access.type = type_cache.kFixedDoubleArrayLengthType; |
| 88 | } else if (IsFastElementsKind(elements_kind)) { |
| 89 | access.type = type_cache.kFixedArrayLengthType; |
| 90 | } |
| 91 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | |
| 95 | // static |
| 96 | FieldAccess AccessBuilder::ForJSArrayBufferBackingStore() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 97 | FieldAccess access = {kTaggedBase, JSArrayBuffer::kBackingStoreOffset, |
| 98 | MaybeHandle<Name>(), Type::UntaggedPointer(), |
| 99 | MachineType::Pointer()}; |
| 100 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 101 | } |
| 102 | |
| 103 | |
| 104 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 105 | FieldAccess AccessBuilder::ForJSArrayBufferBitField() { |
| 106 | FieldAccess access = {kTaggedBase, JSArrayBuffer::kBitFieldOffset, |
| 107 | MaybeHandle<Name>(), TypeCache::Get().kInt8, |
| 108 | MachineType::Int8()}; |
| 109 | return access; |
| 110 | } |
| 111 | |
| 112 | |
| 113 | // static |
| 114 | FieldAccess AccessBuilder::ForJSArrayBufferViewBuffer() { |
| 115 | FieldAccess access = {kTaggedBase, JSArrayBufferView::kBufferOffset, |
| 116 | MaybeHandle<Name>(), Type::TaggedPointer(), |
| 117 | MachineType::AnyTagged()}; |
| 118 | return access; |
| 119 | } |
| 120 | |
| 121 | |
| 122 | // static |
| 123 | FieldAccess AccessBuilder::ForJSDateField(JSDate::FieldIndex index) { |
| 124 | FieldAccess access = { |
| 125 | kTaggedBase, JSDate::kValueOffset + index * kPointerSize, |
| 126 | MaybeHandle<Name>(), Type::Number(), MachineType::AnyTagged()}; |
| 127 | return access; |
| 128 | } |
| 129 | |
| 130 | |
| 131 | // static |
| 132 | FieldAccess AccessBuilder::ForJSIteratorResultDone() { |
| 133 | FieldAccess access = {kTaggedBase, JSIteratorResult::kDoneOffset, |
| 134 | MaybeHandle<Name>(), Type::Any(), |
| 135 | MachineType::AnyTagged()}; |
| 136 | return access; |
| 137 | } |
| 138 | |
| 139 | |
| 140 | // static |
| 141 | FieldAccess AccessBuilder::ForJSIteratorResultValue() { |
| 142 | FieldAccess access = {kTaggedBase, JSIteratorResult::kValueOffset, |
| 143 | MaybeHandle<Name>(), Type::Any(), |
| 144 | MachineType::AnyTagged()}; |
| 145 | return access; |
| 146 | } |
| 147 | |
| 148 | |
| 149 | // static |
| 150 | FieldAccess AccessBuilder::ForJSRegExpFlags() { |
| 151 | FieldAccess access = {kTaggedBase, JSRegExp::kFlagsOffset, |
| 152 | MaybeHandle<Name>(), Type::Tagged(), |
| 153 | MachineType::AnyTagged()}; |
| 154 | return access; |
| 155 | } |
| 156 | |
| 157 | |
| 158 | // static |
| 159 | FieldAccess AccessBuilder::ForJSRegExpSource() { |
| 160 | FieldAccess access = {kTaggedBase, JSRegExp::kSourceOffset, |
| 161 | MaybeHandle<Name>(), Type::Tagged(), |
| 162 | MachineType::AnyTagged()}; |
| 163 | return access; |
| 164 | } |
| 165 | |
| 166 | |
| 167 | // static |
| 168 | FieldAccess AccessBuilder::ForFixedArrayLength() { |
| 169 | FieldAccess access = { |
| 170 | kTaggedBase, FixedArray::kLengthOffset, MaybeHandle<Name>(), |
| 171 | TypeCache::Get().kFixedArrayLengthType, MachineType::AnyTagged()}; |
| 172 | return access; |
| 173 | } |
| 174 | |
| 175 | |
| 176 | // static |
| 177 | FieldAccess AccessBuilder::ForDescriptorArrayEnumCache() { |
| 178 | FieldAccess access = {kTaggedBase, DescriptorArray::kEnumCacheOffset, |
| 179 | Handle<Name>(), Type::TaggedPointer(), |
| 180 | MachineType::AnyTagged()}; |
| 181 | return access; |
| 182 | } |
| 183 | |
| 184 | |
| 185 | // static |
| 186 | FieldAccess AccessBuilder::ForDescriptorArrayEnumCacheBridgeCache() { |
| 187 | FieldAccess access = { |
| 188 | kTaggedBase, DescriptorArray::kEnumCacheBridgeCacheOffset, Handle<Name>(), |
| 189 | Type::TaggedPointer(), MachineType::AnyTagged()}; |
| 190 | return access; |
| 191 | } |
| 192 | |
| 193 | |
| 194 | // static |
| 195 | FieldAccess AccessBuilder::ForMapBitField() { |
| 196 | FieldAccess access = {kTaggedBase, Map::kBitFieldOffset, Handle<Name>(), |
| 197 | TypeCache::Get().kUint8, MachineType::Uint8()}; |
| 198 | return access; |
| 199 | } |
| 200 | |
| 201 | |
| 202 | // static |
| 203 | FieldAccess AccessBuilder::ForMapBitField3() { |
| 204 | FieldAccess access = {kTaggedBase, Map::kBitField3Offset, Handle<Name>(), |
| 205 | TypeCache::Get().kInt32, MachineType::Int32()}; |
| 206 | return access; |
| 207 | } |
| 208 | |
| 209 | |
| 210 | // static |
| 211 | FieldAccess AccessBuilder::ForMapDescriptors() { |
| 212 | FieldAccess access = {kTaggedBase, Map::kDescriptorsOffset, Handle<Name>(), |
| 213 | Type::TaggedPointer(), MachineType::AnyTagged()}; |
| 214 | return access; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 215 | } |
| 216 | |
| 217 | |
| 218 | // static |
| 219 | FieldAccess AccessBuilder::ForMapInstanceType() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 220 | FieldAccess access = {kTaggedBase, Map::kInstanceTypeOffset, Handle<Name>(), |
| 221 | TypeCache::Get().kUint8, MachineType::Uint8()}; |
| 222 | return access; |
| 223 | } |
| 224 | |
| 225 | |
| 226 | // static |
| 227 | FieldAccess AccessBuilder::ForMapPrototype() { |
| 228 | FieldAccess access = {kTaggedBase, Map::kPrototypeOffset, Handle<Name>(), |
| 229 | Type::TaggedPointer(), MachineType::AnyTagged()}; |
| 230 | return access; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | |
| 234 | // static |
| 235 | FieldAccess AccessBuilder::ForStringLength() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 236 | FieldAccess access = {kTaggedBase, String::kLengthOffset, Handle<Name>(), |
| 237 | TypeCache::Get().kStringLengthType, |
| 238 | MachineType::AnyTagged()}; |
| 239 | return access; |
| 240 | } |
| 241 | |
| 242 | |
| 243 | // static |
| 244 | FieldAccess AccessBuilder::ForJSGlobalObjectGlobalProxy() { |
| 245 | FieldAccess access = {kTaggedBase, JSGlobalObject::kGlobalProxyOffset, |
| 246 | Handle<Name>(), Type::Receiver(), |
| 247 | MachineType::AnyTagged()}; |
| 248 | return access; |
| 249 | } |
| 250 | |
| 251 | |
| 252 | // static |
| 253 | FieldAccess AccessBuilder::ForJSGlobalObjectNativeContext() { |
| 254 | FieldAccess access = {kTaggedBase, JSGlobalObject::kNativeContextOffset, |
| 255 | Handle<Name>(), Type::Internal(), |
| 256 | MachineType::AnyTagged()}; |
| 257 | return access; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 258 | } |
| 259 | |
| 260 | |
| 261 | // static |
| 262 | FieldAccess AccessBuilder::ForValue() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 263 | FieldAccess access = {kTaggedBase, JSValue::kValueOffset, Handle<Name>(), |
| 264 | Type::Any(), MachineType::AnyTagged()}; |
| 265 | return access; |
| 266 | } |
| 267 | |
| 268 | |
| 269 | // static |
| 270 | FieldAccess AccessBuilder::ForArgumentsLength() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 271 | FieldAccess access = {kTaggedBase, JSArgumentsObject::kLengthOffset, |
| 272 | Handle<Name>(), Type::Any(), MachineType::AnyTagged()}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 273 | return access; |
| 274 | } |
| 275 | |
| 276 | |
| 277 | // static |
| 278 | FieldAccess AccessBuilder::ForArgumentsCallee() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 279 | FieldAccess access = {kTaggedBase, JSSloppyArgumentsObject::kCalleeOffset, |
| 280 | Handle<Name>(), Type::Any(), MachineType::AnyTagged()}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 281 | return access; |
| 282 | } |
| 283 | |
| 284 | |
| 285 | // static |
| 286 | FieldAccess AccessBuilder::ForFixedArraySlot(size_t index) { |
| 287 | int offset = FixedArray::OffsetOfElementAt(static_cast<int>(index)); |
| 288 | FieldAccess access = {kTaggedBase, offset, Handle<Name>(), Type::Any(), |
| 289 | MachineType::AnyTagged()}; |
| 290 | return access; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | |
| 294 | // static |
| 295 | FieldAccess AccessBuilder::ForContextSlot(size_t index) { |
| 296 | int offset = Context::kHeaderSize + static_cast<int>(index) * kPointerSize; |
| 297 | DCHECK_EQ(offset, |
| 298 | Context::SlotOffset(static_cast<int>(index)) + kHeapObjectTag); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 299 | FieldAccess access = {kTaggedBase, offset, Handle<Name>(), Type::Any(), |
| 300 | MachineType::AnyTagged()}; |
| 301 | return access; |
| 302 | } |
| 303 | |
| 304 | |
| 305 | // static |
| 306 | FieldAccess AccessBuilder::ForPropertyCellValue() { |
| 307 | return ForPropertyCellValue(Type::Tagged()); |
| 308 | } |
| 309 | |
| 310 | |
| 311 | // static |
| 312 | FieldAccess AccessBuilder::ForPropertyCellValue(Type* type) { |
| 313 | FieldAccess access = {kTaggedBase, PropertyCell::kValueOffset, Handle<Name>(), |
| 314 | type, MachineType::AnyTagged()}; |
| 315 | return access; |
| 316 | } |
| 317 | |
| 318 | |
| 319 | // static |
| 320 | FieldAccess AccessBuilder::ForSharedFunctionInfoTypeFeedbackVector() { |
| 321 | FieldAccess access = {kTaggedBase, SharedFunctionInfo::kFeedbackVectorOffset, |
| 322 | Handle<Name>(), Type::Any(), MachineType::AnyTagged()}; |
| 323 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 324 | } |
| 325 | |
| 326 | |
| 327 | // static |
| 328 | ElementAccess AccessBuilder::ForFixedArrayElement() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 329 | ElementAccess access = {kTaggedBase, FixedArray::kHeaderSize, Type::Tagged(), |
| 330 | MachineType::AnyTagged()}; |
| 331 | return access; |
| 332 | } |
| 333 | |
| 334 | |
| 335 | // static |
| 336 | ElementAccess AccessBuilder::ForFixedDoubleArrayElement() { |
| 337 | ElementAccess access = {kTaggedBase, FixedDoubleArray::kHeaderSize, |
| 338 | TypeCache::Get().kFloat64, MachineType::Float64()}; |
| 339 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 340 | } |
| 341 | |
| 342 | |
| 343 | // static |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 344 | ElementAccess AccessBuilder::ForTypedArrayElement(ExternalArrayType type, |
| 345 | bool is_external) { |
| 346 | BaseTaggedness taggedness = is_external ? kUntaggedBase : kTaggedBase; |
| 347 | int header_size = is_external ? 0 : FixedTypedArrayBase::kDataOffset; |
| 348 | switch (type) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 349 | case kExternalInt8Array: { |
| 350 | ElementAccess access = {taggedness, header_size, Type::Signed32(), |
| 351 | MachineType::Int8()}; |
| 352 | return access; |
| 353 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 354 | case kExternalUint8Array: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 355 | case kExternalUint8ClampedArray: { |
| 356 | ElementAccess access = {taggedness, header_size, Type::Unsigned32(), |
| 357 | MachineType::Uint8()}; |
| 358 | return access; |
| 359 | } |
| 360 | case kExternalInt16Array: { |
| 361 | ElementAccess access = {taggedness, header_size, Type::Signed32(), |
| 362 | MachineType::Int16()}; |
| 363 | return access; |
| 364 | } |
| 365 | case kExternalUint16Array: { |
| 366 | ElementAccess access = {taggedness, header_size, Type::Unsigned32(), |
| 367 | MachineType::Uint16()}; |
| 368 | return access; |
| 369 | } |
| 370 | case kExternalInt32Array: { |
| 371 | ElementAccess access = {taggedness, header_size, Type::Signed32(), |
| 372 | MachineType::Int32()}; |
| 373 | return access; |
| 374 | } |
| 375 | case kExternalUint32Array: { |
| 376 | ElementAccess access = {taggedness, header_size, Type::Unsigned32(), |
| 377 | MachineType::Uint32()}; |
| 378 | return access; |
| 379 | } |
| 380 | case kExternalFloat32Array: { |
| 381 | ElementAccess access = {taggedness, header_size, Type::Number(), |
| 382 | MachineType::Float32()}; |
| 383 | return access; |
| 384 | } |
| 385 | case kExternalFloat64Array: { |
| 386 | ElementAccess access = {taggedness, header_size, Type::Number(), |
| 387 | MachineType::Float64()}; |
| 388 | return access; |
| 389 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 390 | } |
| 391 | UNREACHABLE(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 392 | ElementAccess access = {kUntaggedBase, 0, Type::None(), MachineType::None()}; |
| 393 | return access; |
| 394 | } |
| 395 | |
| 396 | |
| 397 | // static |
| 398 | FieldAccess AccessBuilder::ForStatsCounter() { |
| 399 | FieldAccess access = {kUntaggedBase, 0, MaybeHandle<Name>(), |
| 400 | TypeCache::Get().kInt32, MachineType::Int32()}; |
| 401 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 402 | } |
| 403 | |
| 404 | } // namespace compiler |
| 405 | } // namespace internal |
| 406 | } // namespace v8 |