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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 #ifndef V8_HYDROGEN_INSTRUCTIONS_H_ | 5 #ifndef V8_HYDROGEN_INSTRUCTIONS_H_ |
6 #define V8_HYDROGEN_INSTRUCTIONS_H_ | 6 #define V8_HYDROGEN_INSTRUCTIONS_H_ |
7 | 7 |
8 #include "v8.h" | 8 #include "v8.h" |
9 | 9 |
10 #include "allocation.h" | 10 #include "allocation.h" |
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154 V(TransitionElementsKind) \ | 154 V(TransitionElementsKind) \ |
155 V(TrapAllocationMemento) \ | 155 V(TrapAllocationMemento) \ |
156 V(Typeof) \ | 156 V(Typeof) \ |
157 V(TypeofIsAndBranch) \ | 157 V(TypeofIsAndBranch) \ |
158 V(UnaryMathOperation) \ | 158 V(UnaryMathOperation) \ |
159 V(UnknownOSRValue) \ | 159 V(UnknownOSRValue) \ |
160 V(UseConst) \ | 160 V(UseConst) \ |
161 V(WrapReceiver) | 161 V(WrapReceiver) |
162 | 162 |
163 #define GVN_TRACKED_FLAG_LIST(V) \ | 163 #define GVN_TRACKED_FLAG_LIST(V) \ |
164 V(Maps) \ | |
165 V(NewSpacePromotion) | 164 V(NewSpacePromotion) |
166 | 165 |
167 #define GVN_UNTRACKED_FLAG_LIST(V) \ | 166 #define GVN_UNTRACKED_FLAG_LIST(V) \ |
168 V(ArrayElements) \ | 167 V(ArrayElements) \ |
169 V(ArrayLengths) \ | 168 V(ArrayLengths) \ |
170 V(StringLengths) \ | 169 V(StringLengths) \ |
171 V(BackingStoreFields) \ | 170 V(BackingStoreFields) \ |
172 V(Calls) \ | 171 V(Calls) \ |
173 V(ContextSlots) \ | 172 V(ContextSlots) \ |
174 V(DoubleArrayElements) \ | 173 V(DoubleArrayElements) \ |
175 V(DoubleFields) \ | 174 V(DoubleFields) \ |
176 V(ElementsKind) \ | 175 V(ElementsKind) \ |
177 V(ElementsPointer) \ | 176 V(ElementsPointer) \ |
178 V(GlobalVars) \ | 177 V(GlobalVars) \ |
179 V(InobjectFields) \ | 178 V(InobjectFields) \ |
| 179 V(Maps) \ |
180 V(OsrEntries) \ | 180 V(OsrEntries) \ |
181 V(ExternalMemory) \ | 181 V(ExternalMemory) \ |
182 V(StringChars) \ | 182 V(StringChars) \ |
183 V(TypedArrayElements) | 183 V(TypedArrayElements) |
184 | 184 |
185 | 185 |
186 #define DECLARE_ABSTRACT_INSTRUCTION(type) \ | 186 #define DECLARE_ABSTRACT_INSTRUCTION(type) \ |
187 virtual bool Is##type() const V8_FINAL V8_OVERRIDE { return true; } \ | 187 virtual bool Is##type() const V8_FINAL V8_OVERRIDE { return true; } \ |
188 static H##type* cast(HValue* value) { \ | 188 static H##type* cast(HValue* value) { \ |
189 ASSERT(value->Is##type()); \ | 189 ASSERT(value->Is##type()); \ |
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2755 } | 2755 } |
2756 return check_map; | 2756 return check_map; |
2757 } | 2757 } |
2758 | 2758 |
2759 bool CanOmitMapChecks() { return omit_; } | 2759 bool CanOmitMapChecks() { return omit_; } |
2760 | 2760 |
2761 virtual bool HasEscapingOperandAt(int index) V8_OVERRIDE { return false; } | 2761 virtual bool HasEscapingOperandAt(int index) V8_OVERRIDE { return false; } |
2762 virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE { | 2762 virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE { |
2763 return Representation::Tagged(); | 2763 return Representation::Tagged(); |
2764 } | 2764 } |
2765 virtual bool HandleSideEffectDominator(GVNFlag side_effect, | |
2766 HValue* dominator) V8_OVERRIDE; | |
2767 virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE; | 2765 virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE; |
2768 | 2766 |
2769 HValue* value() { return OperandAt(0); } | 2767 HValue* value() { return OperandAt(0); } |
2770 HValue* typecheck() { return OperandAt(1); } | 2768 HValue* typecheck() { return OperandAt(1); } |
2771 | 2769 |
2772 Unique<Map> first_map() const { return map_set_.at(0); } | 2770 Unique<Map> first_map() const { return map_set_.at(0); } |
2773 const UniqueSet<Map>* map_set() const { return &map_set_; } | 2771 const UniqueSet<Map>* map_set() const { return &map_set_; } |
2774 | 2772 |
2775 void set_map_set(UniqueSet<Map>* maps, Zone *zone) { | 2773 void set_map_set(UniqueSet<Map>* maps, Zone *zone) { |
2776 map_set_.Clear(); | 2774 map_set_.Clear(); |
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2806 | 2804 |
2807 // Clients should use one of the static New* methods above. | 2805 // Clients should use one of the static New* methods above. |
2808 HCheckMaps(HValue* value, Zone *zone, HValue* typecheck) | 2806 HCheckMaps(HValue* value, Zone *zone, HValue* typecheck) |
2809 : HTemplateInstruction<2>(value->type()), | 2807 : HTemplateInstruction<2>(value->type()), |
2810 omit_(false), has_migration_target_(false) { | 2808 omit_(false), has_migration_target_(false) { |
2811 SetOperandAt(0, value); | 2809 SetOperandAt(0, value); |
2812 // Use the object value for the dependency if NULL is passed. | 2810 // Use the object value for the dependency if NULL is passed. |
2813 SetOperandAt(1, typecheck != NULL ? typecheck : value); | 2811 SetOperandAt(1, typecheck != NULL ? typecheck : value); |
2814 set_representation(Representation::Tagged()); | 2812 set_representation(Representation::Tagged()); |
2815 SetFlag(kUseGVN); | 2813 SetFlag(kUseGVN); |
2816 SetFlag(kTrackSideEffectDominators); | |
2817 } | 2814 } |
2818 | 2815 |
2819 bool omit_; | 2816 bool omit_; |
2820 bool has_migration_target_; | 2817 bool has_migration_target_; |
2821 UniqueSet<Map> map_set_; | 2818 UniqueSet<Map> map_set_; |
2822 }; | 2819 }; |
2823 | 2820 |
2824 | 2821 |
2825 class HCheckValue V8_FINAL : public HUnaryOperation { | 2822 class HCheckValue V8_FINAL : public HUnaryOperation { |
2826 public: | 2823 public: |
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7564 virtual bool IsDeletable() const V8_OVERRIDE { return true; } | 7561 virtual bool IsDeletable() const V8_OVERRIDE { return true; } |
7565 }; | 7562 }; |
7566 | 7563 |
7567 | 7564 |
7568 #undef DECLARE_INSTRUCTION | 7565 #undef DECLARE_INSTRUCTION |
7569 #undef DECLARE_CONCRETE_INSTRUCTION | 7566 #undef DECLARE_CONCRETE_INSTRUCTION |
7570 | 7567 |
7571 } } // namespace v8::internal | 7568 } } // namespace v8::internal |
7572 | 7569 |
7573 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 7570 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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