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| 1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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 #include "src/compiler/bytecode-graph-builder.h" | 5 #include "src/compiler/bytecode-graph-builder.h" |
| 6 | 6 |
| 7 #include "src/ast/ast.h" | 7 #include "src/ast/ast.h" |
| 8 #include "src/ast/scopes.h" | 8 #include "src/ast/scopes.h" |
| 9 #include "src/compilation-info.h" | 9 #include "src/compilation-info.h" |
| 10 #include "src/compiler/compiler-source-position-table.h" | 10 #include "src/compiler/compiler-source-position-table.h" |
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| 1345 interpreter::Register first_return = | 1345 interpreter::Register first_return = |
| 1346 bytecode_iterator().GetRegisterOperand(3); | 1346 bytecode_iterator().GetRegisterOperand(3); |
| 1347 | 1347 |
| 1348 // Create node to perform the runtime call. | 1348 // Create node to perform the runtime call. |
| 1349 const Operator* call = javascript()->CallRuntime(functionId, arg_count); | 1349 const Operator* call = javascript()->CallRuntime(functionId, arg_count); |
| 1350 Node* return_pair = ProcessCallRuntimeArguments(call, first_arg, arg_count); | 1350 Node* return_pair = ProcessCallRuntimeArguments(call, first_arg, arg_count); |
| 1351 environment()->BindRegistersToProjections(first_return, return_pair, | 1351 environment()->BindRegistersToProjections(first_return, return_pair, |
| 1352 Environment::kAttachFrameState); | 1352 Environment::kAttachFrameState); |
| 1353 } | 1353 } |
| 1354 | 1354 |
| 1355 Node* BytecodeGraphBuilder::ProcessCallNewWithSpreadArguments( | 1355 Node* BytecodeGraphBuilder::ProcessConstructWithSpreadArguments( |
| 1356 const Operator* op, Node* callee, Node* new_target, | 1356 const Operator* op, Node* callee, Node* new_target, |
| 1357 interpreter::Register first_arg, size_t arity) { | 1357 interpreter::Register first_arg, size_t arity) { |
| 1358 Node** all = local_zone()->NewArray<Node*>(arity); | 1358 Node** all = local_zone()->NewArray<Node*>(arity); |
| 1359 all[0] = callee; | 1359 all[0] = callee; |
| 1360 int first_arg_index = first_arg.index(); | 1360 int first_arg_index = first_arg.index(); |
| 1361 for (int i = 1; i < static_cast<int>(arity) - 1; ++i) { | 1361 for (int i = 1; i < static_cast<int>(arity) - 1; ++i) { |
| 1362 all[i] = environment()->LookupRegister( | 1362 all[i] = environment()->LookupRegister( |
| 1363 interpreter::Register(first_arg_index + i - 1)); | 1363 interpreter::Register(first_arg_index + i - 1)); |
| 1364 } | 1364 } |
| 1365 all[arity - 1] = new_target; | 1365 all[arity - 1] = new_target; |
| 1366 Node* value = MakeNode(op, static_cast<int>(arity), all, false); | 1366 Node* value = MakeNode(op, static_cast<int>(arity), all, false); |
| 1367 return value; | 1367 return value; |
| 1368 } | 1368 } |
| 1369 | 1369 |
| 1370 void BytecodeGraphBuilder::VisitNewWithSpread() { | 1370 void BytecodeGraphBuilder::VisitConstructWithSpread() { |
| 1371 PrepareEagerCheckpoint(); | 1371 PrepareEagerCheckpoint(); |
| 1372 interpreter::Register callee_reg = bytecode_iterator().GetRegisterOperand(0); | 1372 interpreter::Register callee_reg = bytecode_iterator().GetRegisterOperand(0); |
| 1373 interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1); | 1373 interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1); |
| 1374 size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2); | 1374 size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2); |
| 1375 | 1375 |
| 1376 Node* new_target = environment()->LookupAccumulator(); | 1376 Node* new_target = environment()->LookupAccumulator(); |
| 1377 Node* callee = environment()->LookupRegister(callee_reg); | 1377 Node* callee = environment()->LookupRegister(callee_reg); |
| 1378 | 1378 |
| 1379 const Operator* op = | 1379 const Operator* op = |
| 1380 javascript()->ConstructWithSpread(static_cast<int>(arg_count) + 2); | 1380 javascript()->ConstructWithSpread(static_cast<int>(arg_count) + 2); |
| 1381 Node* value = ProcessCallNewWithSpreadArguments(op, callee, new_target, | 1381 Node* value = ProcessConstructWithSpreadArguments(op, callee, new_target, |
| 1382 first_arg, arg_count + 2); | 1382 first_arg, arg_count + 2); |
| 1383 environment()->BindAccumulator(value, Environment::kAttachFrameState); | 1383 environment()->BindAccumulator(value, Environment::kAttachFrameState); |
| 1384 } | 1384 } |
| 1385 | 1385 |
| 1386 void BytecodeGraphBuilder::VisitInvokeIntrinsic() { | 1386 void BytecodeGraphBuilder::VisitInvokeIntrinsic() { |
| 1387 PrepareEagerCheckpoint(); | 1387 PrepareEagerCheckpoint(); |
| 1388 Runtime::FunctionId functionId = bytecode_iterator().GetIntrinsicIdOperand(0); | 1388 Runtime::FunctionId functionId = bytecode_iterator().GetIntrinsicIdOperand(0); |
| 1389 interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1); | 1389 interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1); |
| 1390 size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2); | 1390 size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2); |
| 1391 | 1391 |
| 1392 // Create node to perform the runtime call. Turbofan will take care of the | 1392 // Create node to perform the runtime call. Turbofan will take care of the |
| 1393 // lowering. | 1393 // lowering. |
| 1394 const Operator* call = javascript()->CallRuntime(functionId, arg_count); | 1394 const Operator* call = javascript()->CallRuntime(functionId, arg_count); |
| 1395 Node* value = ProcessCallRuntimeArguments(call, first_arg, arg_count); | 1395 Node* value = ProcessCallRuntimeArguments(call, first_arg, arg_count); |
| 1396 environment()->BindAccumulator(value, Environment::kAttachFrameState); | 1396 environment()->BindAccumulator(value, Environment::kAttachFrameState); |
| 1397 } | 1397 } |
| 1398 | 1398 |
| 1399 Node* BytecodeGraphBuilder::ProcessCallNewArguments( | 1399 Node* BytecodeGraphBuilder::ProcessConstructArguments( |
| 1400 const Operator* call_new_op, Node* callee, Node* new_target, | 1400 const Operator* call_new_op, Node* callee, Node* new_target, |
| 1401 interpreter::Register first_arg, size_t arity) { | 1401 interpreter::Register first_arg, size_t arity) { |
| 1402 Node** all = local_zone()->NewArray<Node*>(arity); | 1402 Node** all = local_zone()->NewArray<Node*>(arity); |
| 1403 all[0] = callee; | 1403 all[0] = callee; |
| 1404 int first_arg_index = first_arg.index(); | 1404 int first_arg_index = first_arg.index(); |
| 1405 for (int i = 1; i < static_cast<int>(arity) - 1; ++i) { | 1405 for (int i = 1; i < static_cast<int>(arity) - 1; ++i) { |
| 1406 all[i] = environment()->LookupRegister( | 1406 all[i] = environment()->LookupRegister( |
| 1407 interpreter::Register(first_arg_index + i - 1)); | 1407 interpreter::Register(first_arg_index + i - 1)); |
| 1408 } | 1408 } |
| 1409 all[arity - 1] = new_target; | 1409 all[arity - 1] = new_target; |
| 1410 Node* value = MakeNode(call_new_op, static_cast<int>(arity), all, false); | 1410 Node* value = MakeNode(call_new_op, static_cast<int>(arity), all, false); |
| 1411 return value; | 1411 return value; |
| 1412 } | 1412 } |
| 1413 | 1413 |
| 1414 void BytecodeGraphBuilder::VisitNew() { | 1414 void BytecodeGraphBuilder::VisitConstruct() { |
| 1415 PrepareEagerCheckpoint(); | 1415 PrepareEagerCheckpoint(); |
| 1416 interpreter::Register callee_reg = bytecode_iterator().GetRegisterOperand(0); | 1416 interpreter::Register callee_reg = bytecode_iterator().GetRegisterOperand(0); |
| 1417 interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1); | 1417 interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1); |
| 1418 size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2); | 1418 size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2); |
| 1419 // Slot index of 0 is used indicate no feedback slot is available. Assert | 1419 // Slot index of 0 is used indicate no feedback slot is available. Assert |
| 1420 // the assumption that slot index 0 is never a valid feedback slot. | 1420 // the assumption that slot index 0 is never a valid feedback slot. |
| 1421 STATIC_ASSERT(TypeFeedbackVector::kReservedIndexCount > 0); | 1421 STATIC_ASSERT(TypeFeedbackVector::kReservedIndexCount > 0); |
| 1422 int const slot_id = bytecode_iterator().GetIndexOperand(3); | 1422 int const slot_id = bytecode_iterator().GetIndexOperand(3); |
| 1423 VectorSlotPair feedback = CreateVectorSlotPair(slot_id); | 1423 VectorSlotPair feedback = CreateVectorSlotPair(slot_id); |
| 1424 | 1424 |
| 1425 Node* new_target = environment()->LookupAccumulator(); | 1425 Node* new_target = environment()->LookupAccumulator(); |
| 1426 Node* callee = environment()->LookupRegister(callee_reg); | 1426 Node* callee = environment()->LookupRegister(callee_reg); |
| 1427 | 1427 |
| 1428 float const frequency = ComputeCallFrequency(slot_id); | 1428 float const frequency = ComputeCallFrequency(slot_id); |
| 1429 const Operator* call = javascript()->Construct( | 1429 const Operator* call = javascript()->Construct( |
| 1430 static_cast<int>(arg_count) + 2, frequency, feedback); | 1430 static_cast<int>(arg_count) + 2, frequency, feedback); |
| 1431 Node* value = ProcessCallNewArguments(call, callee, new_target, first_arg, | 1431 Node* value = ProcessConstructArguments(call, callee, new_target, first_arg, |
| 1432 arg_count + 2); | 1432 arg_count + 2); |
| 1433 environment()->BindAccumulator(value, Environment::kAttachFrameState); | 1433 environment()->BindAccumulator(value, Environment::kAttachFrameState); |
| 1434 } | 1434 } |
| 1435 | 1435 |
| 1436 void BytecodeGraphBuilder::BuildThrow() { | 1436 void BytecodeGraphBuilder::BuildThrow() { |
| 1437 PrepareEagerCheckpoint(); | 1437 PrepareEagerCheckpoint(); |
| 1438 Node* value = environment()->LookupAccumulator(); | 1438 Node* value = environment()->LookupAccumulator(); |
| 1439 Node* call = NewNode(javascript()->CallRuntime(Runtime::kThrow), value); | 1439 Node* call = NewNode(javascript()->CallRuntime(Runtime::kThrow), value); |
| 1440 environment()->BindAccumulator(call, Environment::kAttachFrameState); | 1440 environment()->BindAccumulator(call, Environment::kAttachFrameState); |
| 1441 } | 1441 } |
| 1442 | 1442 |
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| 2301 it->source_position().ScriptOffset(), start_position_.InliningId())); | 2301 it->source_position().ScriptOffset(), start_position_.InliningId())); |
| 2302 it->Advance(); | 2302 it->Advance(); |
| 2303 } else { | 2303 } else { |
| 2304 DCHECK_GT(it->code_offset(), offset); | 2304 DCHECK_GT(it->code_offset(), offset); |
| 2305 } | 2305 } |
| 2306 } | 2306 } |
| 2307 | 2307 |
| 2308 } // namespace compiler | 2308 } // namespace compiler |
| 2309 } // namespace internal | 2309 } // namespace internal |
| 2310 } // namespace v8 | 2310 } // namespace v8 |
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