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1 // Copyright 2012 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
6 | 6 |
7 // Note on Mips implementation: | 7 // Note on Mips implementation: |
8 // | 8 // |
9 // The result_register() for mips is the 'v0' register, which is defined | 9 // The result_register() for mips is the 'v0' register, which is defined |
10 // by the ABI to contain function return values. However, the first | 10 // by the ABI to contain function return values. However, the first |
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1219 __ CallStub(&stub); | 1219 __ CallStub(&stub); |
1220 RestoreContext(); | 1220 RestoreContext(); |
1221 } | 1221 } |
1222 PrepareForBailoutForId(expr->CreateLiteralId(), BailoutState::TOS_REGISTER); | 1222 PrepareForBailoutForId(expr->CreateLiteralId(), BailoutState::TOS_REGISTER); |
1223 | 1223 |
1224 // If result_saved is true the result is on top of the stack. If | 1224 // If result_saved is true the result is on top of the stack. If |
1225 // result_saved is false the result is in v0. | 1225 // result_saved is false the result is in v0. |
1226 bool result_saved = false; | 1226 bool result_saved = false; |
1227 | 1227 |
1228 AccessorTable accessor_table(zone()); | 1228 AccessorTable accessor_table(zone()); |
1229 int property_index = 0; | 1229 for (int i = 0; i < expr->properties()->length(); i++) { |
1230 for (; property_index < expr->properties()->length(); property_index++) { | 1230 ObjectLiteral::Property* property = expr->properties()->at(i); |
1231 ObjectLiteral::Property* property = expr->properties()->at(property_index); | 1231 DCHECK(!property->is_computed_name()); |
1232 if (property->is_computed_name()) break; | |
1233 if (property->IsCompileTimeValue()) continue; | 1232 if (property->IsCompileTimeValue()) continue; |
1234 | 1233 |
1235 Literal* key = property->key()->AsLiteral(); | 1234 Literal* key = property->key()->AsLiteral(); |
1236 Expression* value = property->value(); | 1235 Expression* value = property->value(); |
1237 if (!result_saved) { | 1236 if (!result_saved) { |
1238 PushOperand(v0); // Save result on stack. | 1237 PushOperand(v0); // Save result on stack. |
1239 result_saved = true; | 1238 result_saved = true; |
1240 } | 1239 } |
1241 switch (property->kind()) { | 1240 switch (property->kind()) { |
1242 case ObjectLiteral::Property::CONSTANT: | 1241 case ObjectLiteral::Property::CONSTANT: |
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1281 DropOperands(3); | 1280 DropOperands(3); |
1282 } | 1281 } |
1283 break; | 1282 break; |
1284 case ObjectLiteral::Property::PROTOTYPE: | 1283 case ObjectLiteral::Property::PROTOTYPE: |
1285 // Duplicate receiver on stack. | 1284 // Duplicate receiver on stack. |
1286 __ ld(a0, MemOperand(sp)); | 1285 __ ld(a0, MemOperand(sp)); |
1287 PushOperand(a0); | 1286 PushOperand(a0); |
1288 VisitForStackValue(value); | 1287 VisitForStackValue(value); |
1289 DCHECK(property->emit_store()); | 1288 DCHECK(property->emit_store()); |
1290 CallRuntimeWithOperands(Runtime::kInternalSetPrototype); | 1289 CallRuntimeWithOperands(Runtime::kInternalSetPrototype); |
1291 PrepareForBailoutForId(expr->GetIdForPropertySet(property_index), | 1290 PrepareForBailoutForId(expr->GetIdForPropertySet(i), |
1292 BailoutState::NO_REGISTERS); | 1291 BailoutState::NO_REGISTERS); |
1293 break; | 1292 break; |
1294 case ObjectLiteral::Property::GETTER: | 1293 case ObjectLiteral::Property::GETTER: |
1295 if (property->emit_store()) { | 1294 if (property->emit_store()) { |
1296 AccessorTable::Iterator it = accessor_table.lookup(key); | 1295 AccessorTable::Iterator it = accessor_table.lookup(key); |
1297 it->second->bailout_id = expr->GetIdForPropertySet(property_index); | 1296 it->second->bailout_id = expr->GetIdForPropertySet(i); |
1298 it->second->getter = property; | 1297 it->second->getter = property; |
1299 } | 1298 } |
1300 break; | 1299 break; |
1301 case ObjectLiteral::Property::SETTER: | 1300 case ObjectLiteral::Property::SETTER: |
1302 if (property->emit_store()) { | 1301 if (property->emit_store()) { |
1303 AccessorTable::Iterator it = accessor_table.lookup(key); | 1302 AccessorTable::Iterator it = accessor_table.lookup(key); |
1304 it->second->bailout_id = expr->GetIdForPropertySet(property_index); | 1303 it->second->bailout_id = expr->GetIdForPropertySet(i); |
1305 it->second->setter = property; | 1304 it->second->setter = property; |
1306 } | 1305 } |
1307 break; | 1306 break; |
1308 } | 1307 } |
1309 } | 1308 } |
1310 | 1309 |
1311 // Emit code to define accessors, using only a single call to the runtime for | 1310 // Emit code to define accessors, using only a single call to the runtime for |
1312 // each pair of corresponding getters and setters. | 1311 // each pair of corresponding getters and setters. |
1313 for (AccessorTable::Iterator it = accessor_table.begin(); | 1312 for (AccessorTable::Iterator it = accessor_table.begin(); |
1314 it != accessor_table.end(); | 1313 it != accessor_table.end(); |
1315 ++it) { | 1314 ++it) { |
1316 __ ld(a0, MemOperand(sp)); // Duplicate receiver. | 1315 __ ld(a0, MemOperand(sp)); // Duplicate receiver. |
1317 PushOperand(a0); | 1316 PushOperand(a0); |
1318 VisitForStackValue(it->first); | 1317 VisitForStackValue(it->first); |
1319 EmitAccessor(it->second->getter); | 1318 EmitAccessor(it->second->getter); |
1320 EmitAccessor(it->second->setter); | 1319 EmitAccessor(it->second->setter); |
1321 __ li(a0, Operand(Smi::FromInt(NONE))); | 1320 __ li(a0, Operand(Smi::FromInt(NONE))); |
1322 PushOperand(a0); | 1321 PushOperand(a0); |
1323 CallRuntimeWithOperands(Runtime::kDefineAccessorPropertyUnchecked); | 1322 CallRuntimeWithOperands(Runtime::kDefineAccessorPropertyUnchecked); |
1324 PrepareForBailoutForId(it->second->bailout_id, BailoutState::NO_REGISTERS); | 1323 PrepareForBailoutForId(it->second->bailout_id, BailoutState::NO_REGISTERS); |
1325 } | 1324 } |
1326 | 1325 |
1327 // Object literals have two parts. The "static" part on the left contains no | |
1328 // computed property names, and so we can compute its map ahead of time; see | |
1329 // runtime.cc::CreateObjectLiteralBoilerplate. The second "dynamic" part | |
1330 // starts with the first computed property name, and continues with all | |
1331 // properties to its right. All the code from above initializes the static | |
1332 // component of the object literal, and arranges for the map of the result to | |
1333 // reflect the static order in which the keys appear. For the dynamic | |
1334 // properties, we compile them into a series of "SetOwnProperty" runtime | |
1335 // calls. This will preserve insertion order. | |
1336 for (; property_index < expr->properties()->length(); property_index++) { | |
1337 ObjectLiteral::Property* property = expr->properties()->at(property_index); | |
1338 | |
1339 Expression* value = property->value(); | |
1340 if (!result_saved) { | |
1341 PushOperand(v0); // Save result on the stack | |
1342 result_saved = true; | |
1343 } | |
1344 | |
1345 __ ld(a0, MemOperand(sp)); // Duplicate receiver. | |
1346 PushOperand(a0); | |
1347 | |
1348 if (property->kind() == ObjectLiteral::Property::PROTOTYPE) { | |
1349 DCHECK(!property->is_computed_name()); | |
1350 VisitForStackValue(value); | |
1351 DCHECK(property->emit_store()); | |
1352 CallRuntimeWithOperands(Runtime::kInternalSetPrototype); | |
1353 PrepareForBailoutForId(expr->GetIdForPropertySet(property_index), | |
1354 BailoutState::NO_REGISTERS); | |
1355 } else { | |
1356 EmitPropertyKey(property, expr->GetIdForPropertyName(property_index)); | |
1357 VisitForStackValue(value); | |
1358 if (NeedsHomeObject(value)) { | |
1359 EmitSetHomeObject(value, 2, property->GetSlot()); | |
1360 } | |
1361 | |
1362 switch (property->kind()) { | |
1363 case ObjectLiteral::Property::CONSTANT: | |
1364 case ObjectLiteral::Property::MATERIALIZED_LITERAL: | |
1365 case ObjectLiteral::Property::COMPUTED: | |
1366 case ObjectLiteral::Property::PROTOTYPE: | |
1367 UNREACHABLE(); | |
1368 break; | |
1369 | |
1370 case ObjectLiteral::Property::GETTER: | |
1371 PushOperand(Smi::FromInt(NONE)); | |
1372 CallRuntimeWithOperands(Runtime::kDefineGetterPropertyUnchecked); | |
1373 break; | |
1374 | |
1375 case ObjectLiteral::Property::SETTER: | |
1376 PushOperand(Smi::FromInt(NONE)); | |
1377 CallRuntimeWithOperands(Runtime::kDefineSetterPropertyUnchecked); | |
1378 break; | |
1379 } | |
1380 } | |
1381 } | |
1382 | |
1383 if (result_saved) { | 1326 if (result_saved) { |
1384 context()->PlugTOS(); | 1327 context()->PlugTOS(); |
1385 } else { | 1328 } else { |
1386 context()->Plug(v0); | 1329 context()->Plug(v0); |
1387 } | 1330 } |
1388 } | 1331 } |
1389 | 1332 |
1390 | 1333 |
1391 void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) { | 1334 void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) { |
1392 Comment cmnt(masm_, "[ ArrayLiteral"); | 1335 Comment cmnt(masm_, "[ ArrayLiteral"); |
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3158 reinterpret_cast<uint64_t>( | 3101 reinterpret_cast<uint64_t>( |
3159 isolate->builtins()->OnStackReplacement()->entry())); | 3102 isolate->builtins()->OnStackReplacement()->entry())); |
3160 return ON_STACK_REPLACEMENT; | 3103 return ON_STACK_REPLACEMENT; |
3161 } | 3104 } |
3162 | 3105 |
3163 | 3106 |
3164 } // namespace internal | 3107 } // namespace internal |
3165 } // namespace v8 | 3108 } // namespace v8 |
3166 | 3109 |
3167 #endif // V8_TARGET_ARCH_MIPS64 | 3110 #endif // V8_TARGET_ARCH_MIPS64 |
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