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 | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 19 | FieldAccess access = { |
| 20 | kTaggedBase, HeapObject::kMapOffset, MaybeHandle<Name>(), |
| 21 | Type::Any(), MachineType::AnyTagged(), kMapWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 22 | return access; |
| 23 | } |
| 24 | |
| 25 | |
| 26 | // static |
| 27 | FieldAccess AccessBuilder::ForHeapNumberValue() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 28 | FieldAccess access = {kTaggedBase, |
| 29 | HeapNumber::kValueOffset, |
| 30 | MaybeHandle<Name>(), |
| 31 | TypeCache::Get().kFloat64, |
| 32 | MachineType::Float64(), |
| 33 | kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 34 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 35 | } |
| 36 | |
| 37 | |
| 38 | // static |
| 39 | FieldAccess AccessBuilder::ForJSObjectProperties() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 40 | FieldAccess access = { |
| 41 | kTaggedBase, JSObject::kPropertiesOffset, MaybeHandle<Name>(), |
| 42 | Type::Internal(), MachineType::AnyTagged(), kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 43 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | |
| 47 | // static |
| 48 | FieldAccess AccessBuilder::ForJSObjectElements() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 49 | FieldAccess access = { |
| 50 | kTaggedBase, JSObject::kElementsOffset, MaybeHandle<Name>(), |
| 51 | Type::Internal(), MachineType::AnyTagged(), kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 52 | return access; |
| 53 | } |
| 54 | |
| 55 | |
| 56 | // static |
| 57 | FieldAccess AccessBuilder::ForJSObjectInObjectProperty(Handle<Map> map, |
| 58 | int index) { |
| 59 | int const offset = map->GetInObjectPropertyOffset(index); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 60 | FieldAccess access = {kTaggedBase, |
| 61 | offset, |
| 62 | MaybeHandle<Name>(), |
| 63 | Type::Tagged(), |
| 64 | MachineType::AnyTagged(), |
| 65 | kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 66 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | |
| 70 | // static |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 71 | FieldAccess AccessBuilder::ForJSFunctionPrototypeOrInitialMap() { |
| 72 | FieldAccess access = {kTaggedBase, |
| 73 | JSFunction::kPrototypeOrInitialMapOffset, |
| 74 | MaybeHandle<Name>(), |
| 75 | Type::Any(), |
| 76 | MachineType::AnyTagged(), |
| 77 | kFullWriteBarrier}; |
| 78 | return access; |
| 79 | } |
| 80 | |
| 81 | // static |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 82 | FieldAccess AccessBuilder::ForJSFunctionContext() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 83 | FieldAccess access = { |
| 84 | kTaggedBase, JSFunction::kContextOffset, MaybeHandle<Name>(), |
| 85 | Type::Internal(), MachineType::AnyTagged(), kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 86 | return access; |
| 87 | } |
| 88 | |
| 89 | |
| 90 | // static |
| 91 | FieldAccess AccessBuilder::ForJSFunctionSharedFunctionInfo() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 92 | FieldAccess access = {kTaggedBase, |
| 93 | JSFunction::kSharedFunctionInfoOffset, |
| 94 | Handle<Name>(), |
| 95 | Type::Any(), |
| 96 | MachineType::AnyTagged(), |
| 97 | kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 98 | return access; |
| 99 | } |
| 100 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 101 | // static |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 102 | FieldAccess AccessBuilder::ForJSFunctionLiterals() { |
| 103 | FieldAccess access = { |
| 104 | kTaggedBase, JSFunction::kLiteralsOffset, Handle<Name>(), |
| 105 | Type::Internal(), MachineType::AnyTagged(), kPointerWriteBarrier}; |
| 106 | return access; |
| 107 | } |
| 108 | |
| 109 | // static |
| 110 | FieldAccess AccessBuilder::ForJSFunctionCodeEntry() { |
| 111 | FieldAccess access = {kTaggedBase, |
| 112 | JSFunction::kCodeEntryOffset, |
| 113 | Handle<Name>(), |
| 114 | Type::UntaggedPointer(), |
| 115 | MachineType::Pointer(), |
| 116 | kNoWriteBarrier}; |
| 117 | return access; |
| 118 | } |
| 119 | |
| 120 | // static |
| 121 | FieldAccess AccessBuilder::ForJSFunctionNextFunctionLink() { |
| 122 | FieldAccess access = {kTaggedBase, |
| 123 | JSFunction::kNextFunctionLinkOffset, |
| 124 | Handle<Name>(), |
| 125 | Type::Any(), |
| 126 | MachineType::AnyTagged(), |
| 127 | kPointerWriteBarrier}; |
| 128 | return access; |
| 129 | } |
| 130 | |
| 131 | // static |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 132 | FieldAccess AccessBuilder::ForJSGeneratorObjectContext() { |
| 133 | FieldAccess access = {kTaggedBase, |
| 134 | JSGeneratorObject::kContextOffset, |
| 135 | Handle<Name>(), |
| 136 | Type::Internal(), |
| 137 | MachineType::AnyTagged(), |
| 138 | kPointerWriteBarrier}; |
| 139 | return access; |
| 140 | } |
| 141 | |
| 142 | // static |
| 143 | FieldAccess AccessBuilder::ForJSGeneratorObjectContinuation() { |
| 144 | TypeCache const& type_cache = TypeCache::Get(); |
| 145 | FieldAccess access = {kTaggedBase, |
| 146 | JSGeneratorObject::kContinuationOffset, |
| 147 | Handle<Name>(), |
| 148 | type_cache.kSmi, |
| 149 | MachineType::AnyTagged(), |
| 150 | kNoWriteBarrier}; |
| 151 | return access; |
| 152 | } |
| 153 | |
| 154 | // static |
| 155 | FieldAccess AccessBuilder::ForJSGeneratorObjectInputOrDebugPos() { |
| 156 | FieldAccess access = {kTaggedBase, |
| 157 | JSGeneratorObject::kInputOrDebugPosOffset, |
| 158 | Handle<Name>(), |
| 159 | Type::Any(), |
| 160 | MachineType::AnyTagged(), |
| 161 | kFullWriteBarrier}; |
| 162 | return access; |
| 163 | } |
| 164 | |
| 165 | // static |
| 166 | FieldAccess AccessBuilder::ForJSGeneratorObjectOperandStack() { |
| 167 | FieldAccess access = {kTaggedBase, |
| 168 | JSGeneratorObject::kOperandStackOffset, |
| 169 | Handle<Name>(), |
| 170 | Type::Internal(), |
| 171 | MachineType::AnyTagged(), |
| 172 | kPointerWriteBarrier}; |
| 173 | return access; |
| 174 | } |
| 175 | |
| 176 | // static |
| 177 | FieldAccess AccessBuilder::ForJSGeneratorObjectResumeMode() { |
| 178 | TypeCache const& type_cache = TypeCache::Get(); |
| 179 | FieldAccess access = {kTaggedBase, |
| 180 | JSGeneratorObject::kResumeModeOffset, |
| 181 | Handle<Name>(), |
| 182 | type_cache.kSmi, |
| 183 | MachineType::AnyTagged(), |
| 184 | kNoWriteBarrier}; |
| 185 | return access; |
| 186 | } |
| 187 | |
| 188 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 189 | FieldAccess AccessBuilder::ForJSArrayLength(ElementsKind elements_kind) { |
| 190 | TypeCache const& type_cache = TypeCache::Get(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 191 | FieldAccess access = {kTaggedBase, |
| 192 | JSArray::kLengthOffset, |
| 193 | Handle<Name>(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 194 | type_cache.kJSArrayLengthType, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 195 | MachineType::AnyTagged(), |
| 196 | kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 197 | if (IsFastDoubleElementsKind(elements_kind)) { |
| 198 | access.type = type_cache.kFixedDoubleArrayLengthType; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 199 | access.write_barrier_kind = kNoWriteBarrier; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 200 | } else if (IsFastElementsKind(elements_kind)) { |
| 201 | access.type = type_cache.kFixedArrayLengthType; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 202 | access.write_barrier_kind = kNoWriteBarrier; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 203 | } |
| 204 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | |
| 208 | // static |
| 209 | FieldAccess AccessBuilder::ForJSArrayBufferBackingStore() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 210 | FieldAccess access = {kTaggedBase, |
| 211 | JSArrayBuffer::kBackingStoreOffset, |
| 212 | MaybeHandle<Name>(), |
| 213 | Type::UntaggedPointer(), |
| 214 | MachineType::Pointer(), |
| 215 | kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 216 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 217 | } |
| 218 | |
| 219 | |
| 220 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 221 | FieldAccess AccessBuilder::ForJSArrayBufferBitField() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 222 | FieldAccess access = {kTaggedBase, JSArrayBuffer::kBitFieldOffset, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 223 | MaybeHandle<Name>(), TypeCache::Get().kInt8, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 224 | MachineType::Int8(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 225 | return access; |
| 226 | } |
| 227 | |
| 228 | |
| 229 | // static |
| 230 | FieldAccess AccessBuilder::ForJSArrayBufferViewBuffer() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 231 | FieldAccess access = {kTaggedBase, |
| 232 | JSArrayBufferView::kBufferOffset, |
| 233 | MaybeHandle<Name>(), |
| 234 | Type::TaggedPointer(), |
| 235 | MachineType::AnyTagged(), |
| 236 | kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 237 | return access; |
| 238 | } |
| 239 | |
| 240 | |
| 241 | // static |
| 242 | FieldAccess AccessBuilder::ForJSDateField(JSDate::FieldIndex index) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 243 | FieldAccess access = {kTaggedBase, |
| 244 | JSDate::kValueOffset + index * kPointerSize, |
| 245 | MaybeHandle<Name>(), |
| 246 | Type::Number(), |
| 247 | MachineType::AnyTagged(), |
| 248 | kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 249 | return access; |
| 250 | } |
| 251 | |
| 252 | |
| 253 | // static |
| 254 | FieldAccess AccessBuilder::ForJSIteratorResultDone() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 255 | FieldAccess access = { |
| 256 | kTaggedBase, JSIteratorResult::kDoneOffset, MaybeHandle<Name>(), |
| 257 | Type::Any(), MachineType::AnyTagged(), kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 258 | return access; |
| 259 | } |
| 260 | |
| 261 | |
| 262 | // static |
| 263 | FieldAccess AccessBuilder::ForJSIteratorResultValue() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 264 | FieldAccess access = { |
| 265 | kTaggedBase, JSIteratorResult::kValueOffset, MaybeHandle<Name>(), |
| 266 | Type::Any(), MachineType::AnyTagged(), kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 267 | return access; |
| 268 | } |
| 269 | |
| 270 | |
| 271 | // static |
| 272 | FieldAccess AccessBuilder::ForJSRegExpFlags() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 273 | FieldAccess access = { |
| 274 | kTaggedBase, JSRegExp::kFlagsOffset, MaybeHandle<Name>(), |
| 275 | Type::Tagged(), MachineType::AnyTagged(), kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 276 | return access; |
| 277 | } |
| 278 | |
| 279 | |
| 280 | // static |
| 281 | FieldAccess AccessBuilder::ForJSRegExpSource() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 282 | FieldAccess access = { |
| 283 | kTaggedBase, JSRegExp::kSourceOffset, MaybeHandle<Name>(), |
| 284 | Type::Tagged(), MachineType::AnyTagged(), kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 285 | return access; |
| 286 | } |
| 287 | |
| 288 | |
| 289 | // static |
| 290 | FieldAccess AccessBuilder::ForFixedArrayLength() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 291 | FieldAccess access = {kTaggedBase, |
| 292 | FixedArray::kLengthOffset, |
| 293 | MaybeHandle<Name>(), |
| 294 | TypeCache::Get().kFixedArrayLengthType, |
| 295 | MachineType::AnyTagged(), |
| 296 | kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 297 | return access; |
| 298 | } |
| 299 | |
| 300 | |
| 301 | // static |
| 302 | FieldAccess AccessBuilder::ForDescriptorArrayEnumCache() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 303 | FieldAccess access = {kTaggedBase, |
| 304 | DescriptorArray::kEnumCacheOffset, |
| 305 | Handle<Name>(), |
| 306 | Type::TaggedPointer(), |
| 307 | MachineType::AnyTagged(), |
| 308 | kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 309 | return access; |
| 310 | } |
| 311 | |
| 312 | |
| 313 | // static |
| 314 | FieldAccess AccessBuilder::ForDescriptorArrayEnumCacheBridgeCache() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 315 | FieldAccess access = {kTaggedBase, |
| 316 | DescriptorArray::kEnumCacheBridgeCacheOffset, |
| 317 | Handle<Name>(), |
| 318 | Type::TaggedPointer(), |
| 319 | MachineType::AnyTagged(), |
| 320 | kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 321 | return access; |
| 322 | } |
| 323 | |
| 324 | |
| 325 | // static |
| 326 | FieldAccess AccessBuilder::ForMapBitField() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 327 | FieldAccess access = {kTaggedBase, Map::kBitFieldOffset, |
| 328 | Handle<Name>(), TypeCache::Get().kUint8, |
| 329 | MachineType::Uint8(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 330 | return access; |
| 331 | } |
| 332 | |
| 333 | |
| 334 | // static |
| 335 | FieldAccess AccessBuilder::ForMapBitField3() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 336 | FieldAccess access = {kTaggedBase, Map::kBitField3Offset, |
| 337 | Handle<Name>(), TypeCache::Get().kInt32, |
| 338 | MachineType::Int32(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 339 | return access; |
| 340 | } |
| 341 | |
| 342 | |
| 343 | // static |
| 344 | FieldAccess AccessBuilder::ForMapDescriptors() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 345 | FieldAccess access = { |
| 346 | kTaggedBase, Map::kDescriptorsOffset, Handle<Name>(), |
| 347 | Type::TaggedPointer(), MachineType::AnyTagged(), kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 348 | return access; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 349 | } |
| 350 | |
| 351 | |
| 352 | // static |
| 353 | FieldAccess AccessBuilder::ForMapInstanceType() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 354 | FieldAccess access = {kTaggedBase, Map::kInstanceTypeOffset, |
| 355 | Handle<Name>(), TypeCache::Get().kUint8, |
| 356 | MachineType::Uint8(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 357 | return access; |
| 358 | } |
| 359 | |
| 360 | |
| 361 | // static |
| 362 | FieldAccess AccessBuilder::ForMapPrototype() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 363 | FieldAccess access = { |
| 364 | kTaggedBase, Map::kPrototypeOffset, Handle<Name>(), |
| 365 | Type::TaggedPointer(), MachineType::AnyTagged(), kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 366 | return access; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | |
| 370 | // static |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 371 | FieldAccess AccessBuilder::ForNameHashField() { |
| 372 | FieldAccess access = {kTaggedBase, Name::kHashFieldOffset, |
| 373 | Handle<Name>(), Type::Internal(), |
| 374 | MachineType::Uint32(), kNoWriteBarrier}; |
| 375 | return access; |
| 376 | } |
| 377 | |
| 378 | // static |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 379 | FieldAccess AccessBuilder::ForStringLength() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 380 | FieldAccess access = {kTaggedBase, |
| 381 | String::kLengthOffset, |
| 382 | Handle<Name>(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 383 | TypeCache::Get().kStringLengthType, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 384 | MachineType::AnyTagged(), |
| 385 | kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 386 | return access; |
| 387 | } |
| 388 | |
| 389 | |
| 390 | // static |
| 391 | FieldAccess AccessBuilder::ForJSGlobalObjectGlobalProxy() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 392 | FieldAccess access = {kTaggedBase, |
| 393 | JSGlobalObject::kGlobalProxyOffset, |
| 394 | Handle<Name>(), |
| 395 | Type::Receiver(), |
| 396 | MachineType::AnyTagged(), |
| 397 | kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 398 | return access; |
| 399 | } |
| 400 | |
| 401 | |
| 402 | // static |
| 403 | FieldAccess AccessBuilder::ForJSGlobalObjectNativeContext() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 404 | FieldAccess access = {kTaggedBase, |
| 405 | JSGlobalObject::kNativeContextOffset, |
| 406 | Handle<Name>(), |
| 407 | Type::Internal(), |
| 408 | MachineType::AnyTagged(), |
| 409 | kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 410 | return access; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | |
| 414 | // static |
| 415 | FieldAccess AccessBuilder::ForValue() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 416 | FieldAccess access = { |
| 417 | kTaggedBase, JSValue::kValueOffset, Handle<Name>(), |
| 418 | Type::Any(), MachineType::AnyTagged(), kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 419 | return access; |
| 420 | } |
| 421 | |
| 422 | |
| 423 | // static |
| 424 | FieldAccess AccessBuilder::ForArgumentsLength() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 425 | FieldAccess access = { |
| 426 | kTaggedBase, JSArgumentsObject::kLengthOffset, Handle<Name>(), |
| 427 | Type::Any(), MachineType::AnyTagged(), kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 428 | return access; |
| 429 | } |
| 430 | |
| 431 | |
| 432 | // static |
| 433 | FieldAccess AccessBuilder::ForArgumentsCallee() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 434 | FieldAccess access = {kTaggedBase, |
| 435 | JSSloppyArgumentsObject::kCalleeOffset, |
| 436 | Handle<Name>(), |
| 437 | Type::Any(), |
| 438 | MachineType::AnyTagged(), |
| 439 | kPointerWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 440 | return access; |
| 441 | } |
| 442 | |
| 443 | |
| 444 | // static |
| 445 | FieldAccess AccessBuilder::ForFixedArraySlot(size_t index) { |
| 446 | int offset = FixedArray::OffsetOfElementAt(static_cast<int>(index)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 447 | FieldAccess access = {kTaggedBase, |
| 448 | offset, |
| 449 | Handle<Name>(), |
| 450 | Type::Any(), |
| 451 | MachineType::AnyTagged(), |
| 452 | kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 453 | return access; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 454 | } |
| 455 | |
| 456 | |
| 457 | // static |
| 458 | FieldAccess AccessBuilder::ForContextSlot(size_t index) { |
| 459 | int offset = Context::kHeaderSize + static_cast<int>(index) * kPointerSize; |
| 460 | DCHECK_EQ(offset, |
| 461 | Context::SlotOffset(static_cast<int>(index)) + kHeapObjectTag); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 462 | FieldAccess access = {kTaggedBase, |
| 463 | offset, |
| 464 | Handle<Name>(), |
| 465 | Type::Any(), |
| 466 | MachineType::AnyTagged(), |
| 467 | kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 468 | return access; |
| 469 | } |
| 470 | |
| 471 | |
| 472 | // static |
| 473 | FieldAccess AccessBuilder::ForPropertyCellValue() { |
| 474 | return ForPropertyCellValue(Type::Tagged()); |
| 475 | } |
| 476 | |
| 477 | |
| 478 | // static |
| 479 | FieldAccess AccessBuilder::ForPropertyCellValue(Type* type) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 480 | FieldAccess access = { |
| 481 | kTaggedBase, PropertyCell::kValueOffset, Handle<Name>(), |
| 482 | type, MachineType::AnyTagged(), kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 483 | return access; |
| 484 | } |
| 485 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 486 | // static |
| 487 | ElementAccess AccessBuilder::ForFixedArrayElement() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 488 | ElementAccess access = {kTaggedBase, FixedArray::kHeaderSize, Type::Tagged(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 489 | MachineType::AnyTagged(), kFullWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 490 | return access; |
| 491 | } |
| 492 | |
| 493 | |
| 494 | // static |
| 495 | ElementAccess AccessBuilder::ForFixedDoubleArrayElement() { |
| 496 | ElementAccess access = {kTaggedBase, FixedDoubleArray::kHeaderSize, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 497 | TypeCache::Get().kFloat64, MachineType::Float64(), |
| 498 | kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 499 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 500 | } |
| 501 | |
| 502 | |
| 503 | // static |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 504 | ElementAccess AccessBuilder::ForTypedArrayElement(ExternalArrayType type, |
| 505 | bool is_external) { |
| 506 | BaseTaggedness taggedness = is_external ? kUntaggedBase : kTaggedBase; |
| 507 | int header_size = is_external ? 0 : FixedTypedArrayBase::kDataOffset; |
| 508 | switch (type) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 509 | case kExternalInt8Array: { |
| 510 | ElementAccess access = {taggedness, header_size, Type::Signed32(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 511 | MachineType::Int8(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 512 | return access; |
| 513 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 514 | case kExternalUint8Array: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 515 | case kExternalUint8ClampedArray: { |
| 516 | ElementAccess access = {taggedness, header_size, Type::Unsigned32(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 517 | MachineType::Uint8(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 518 | return access; |
| 519 | } |
| 520 | case kExternalInt16Array: { |
| 521 | ElementAccess access = {taggedness, header_size, Type::Signed32(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 522 | MachineType::Int16(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 523 | return access; |
| 524 | } |
| 525 | case kExternalUint16Array: { |
| 526 | ElementAccess access = {taggedness, header_size, Type::Unsigned32(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 527 | MachineType::Uint16(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 528 | return access; |
| 529 | } |
| 530 | case kExternalInt32Array: { |
| 531 | ElementAccess access = {taggedness, header_size, Type::Signed32(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 532 | MachineType::Int32(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 533 | return access; |
| 534 | } |
| 535 | case kExternalUint32Array: { |
| 536 | ElementAccess access = {taggedness, header_size, Type::Unsigned32(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 537 | MachineType::Uint32(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 538 | return access; |
| 539 | } |
| 540 | case kExternalFloat32Array: { |
| 541 | ElementAccess access = {taggedness, header_size, Type::Number(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 542 | MachineType::Float32(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 543 | return access; |
| 544 | } |
| 545 | case kExternalFloat64Array: { |
| 546 | ElementAccess access = {taggedness, header_size, Type::Number(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 547 | MachineType::Float64(), kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 548 | return access; |
| 549 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 550 | } |
| 551 | UNREACHABLE(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 552 | ElementAccess access = {kUntaggedBase, 0, Type::None(), MachineType::None(), |
| 553 | kNoWriteBarrier}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 554 | return access; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 555 | } |
| 556 | |
| 557 | } // namespace compiler |
| 558 | } // namespace internal |
| 559 | } // namespace v8 |