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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/js-type-feedback.h" | 5 #include "src/compiler/js-type-feedback.h" |
| 6 | 6 |
| 7 #include "src/property-details.h" | 7 #include "src/property-details.h" |
| 8 | 8 |
| 9 #include "src/accessors.h" | 9 #include "src/accessors.h" |
| 10 #include "src/ast.h" | 10 #include "src/ast.h" |
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| 25 | 25 |
| 26 enum LoadOrStore { LOAD, STORE }; | 26 enum LoadOrStore { LOAD, STORE }; |
| 27 | 27 |
| 28 // TODO(turbofan): fix deoptimization problems | 28 // TODO(turbofan): fix deoptimization problems |
| 29 #define ENABLE_FAST_PROPERTY_LOADS false | 29 #define ENABLE_FAST_PROPERTY_LOADS false |
| 30 #define ENABLE_FAST_PROPERTY_STORES false | 30 #define ENABLE_FAST_PROPERTY_STORES false |
| 31 | 31 |
| 32 JSTypeFeedbackTable::JSTypeFeedbackTable(Zone* zone) | 32 JSTypeFeedbackTable::JSTypeFeedbackTable(Zone* zone) |
| 33 : type_feedback_id_map_(TypeFeedbackIdMap::key_compare(), | 33 : type_feedback_id_map_(TypeFeedbackIdMap::key_compare(), |
| 34 TypeFeedbackIdMap::allocator_type(zone)), | 34 TypeFeedbackIdMap::allocator_type(zone)), |
| 35 feedback_vector_ic_slot_map_(TypeFeedbackIdMap::key_compare(), | 35 feedback_vector_slot_map_(TypeFeedbackIdMap::key_compare(), |
| 36 TypeFeedbackIdMap::allocator_type(zone)) {} | 36 TypeFeedbackIdMap::allocator_type(zone)) {} |
| 37 | 37 |
| 38 | 38 |
| 39 void JSTypeFeedbackTable::Record(Node* node, TypeFeedbackId id) { | 39 void JSTypeFeedbackTable::Record(Node* node, TypeFeedbackId id) { |
| 40 type_feedback_id_map_.insert(std::make_pair(node->id(), id)); | 40 type_feedback_id_map_.insert(std::make_pair(node->id(), id)); |
| 41 } | 41 } |
| 42 | 42 |
| 43 | 43 |
| 44 void JSTypeFeedbackTable::Record(Node* node, FeedbackVectorICSlot slot) { | 44 void JSTypeFeedbackTable::Record(Node* node, FeedbackVectorSlot slot) { |
| 45 feedback_vector_ic_slot_map_.insert(std::make_pair(node->id(), slot)); | 45 feedback_vector_slot_map_.insert(std::make_pair(node->id(), slot)); |
| 46 } | 46 } |
| 47 | 47 |
| 48 | 48 |
| 49 Reduction JSTypeFeedbackSpecializer::Reduce(Node* node) { | 49 Reduction JSTypeFeedbackSpecializer::Reduce(Node* node) { |
| 50 switch (node->opcode()) { | 50 switch (node->opcode()) { |
| 51 case IrOpcode::kJSLoadProperty: | 51 case IrOpcode::kJSLoadProperty: |
| 52 return ReduceJSLoadProperty(node); | 52 return ReduceJSLoadProperty(node); |
| 53 case IrOpcode::kJSLoadNamed: | 53 case IrOpcode::kJSLoadNamed: |
| 54 return ReduceJSLoadNamed(node); | 54 return ReduceJSLoadNamed(node); |
| 55 case IrOpcode::kJSLoadGlobal: | 55 case IrOpcode::kJSLoadGlobal: |
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| 141 | 141 |
| 142 Reduction JSTypeFeedbackSpecializer::ReduceJSLoadNamed(Node* node) { | 142 Reduction JSTypeFeedbackSpecializer::ReduceJSLoadNamed(Node* node) { |
| 143 DCHECK(node->opcode() == IrOpcode::kJSLoadNamed); | 143 DCHECK(node->opcode() == IrOpcode::kJSLoadNamed); |
| 144 if (mode() != kDeoptimizationEnabled) return NoChange(); | 144 if (mode() != kDeoptimizationEnabled) return NoChange(); |
| 145 Node* frame_state_before = GetFrameStateBefore(node); | 145 Node* frame_state_before = GetFrameStateBefore(node); |
| 146 if (frame_state_before == nullptr) return NoChange(); | 146 if (frame_state_before == nullptr) return NoChange(); |
| 147 | 147 |
| 148 const LoadNamedParameters& p = LoadNamedParametersOf(node->op()); | 148 const LoadNamedParameters& p = LoadNamedParametersOf(node->op()); |
| 149 SmallMapList maps; | 149 SmallMapList maps; |
| 150 | 150 |
| 151 FeedbackVectorICSlot slot = js_type_feedback_->FindFeedbackVectorICSlot(node); | 151 FeedbackVectorSlot slot = js_type_feedback_->FindFeedbackVectorSlot(node); |
| 152 if (slot.IsInvalid() || | 152 if (slot.IsInvalid() || |
| 153 oracle()->LoadInlineCacheState(slot) == UNINITIALIZED) { | 153 oracle()->LoadInlineCacheState(slot) == UNINITIALIZED) { |
| 154 // No type feedback ids or the load is uninitialized. | 154 // No type feedback ids or the load is uninitialized. |
| 155 return NoChange(); | 155 return NoChange(); |
| 156 } | 156 } |
| 157 oracle()->PropertyReceiverTypes(slot, p.name(), &maps); | 157 oracle()->PropertyReceiverTypes(slot, p.name(), &maps); |
| 158 | 158 |
| 159 Node* receiver = node->InputAt(0); | 159 Node* receiver = node->InputAt(0); |
| 160 Node* effect = NodeProperties::GetEffectInput(node); | 160 Node* effect = NodeProperties::GetEffectInput(node); |
| 161 | 161 |
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| 355 BailoutId id = OpParameter<FrameStateInfo>(node).bailout_id(); | 355 BailoutId id = OpParameter<FrameStateInfo>(node).bailout_id(); |
| 356 if (id != BailoutId::None()) return frame_state; | 356 if (id != BailoutId::None()) return frame_state; |
| 357 } | 357 } |
| 358 } | 358 } |
| 359 return nullptr; | 359 return nullptr; |
| 360 } | 360 } |
| 361 | 361 |
| 362 } // namespace compiler | 362 } // namespace compiler |
| 363 } // namespace internal | 363 } // namespace internal |
| 364 } // namespace v8 | 364 } // namespace v8 |
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