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Issue 8139027: Version 3.6.5 (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: '' Created 9 years, 2 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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236 void EliminateRedundantPhis(); 236 void EliminateRedundantPhis();
237 void EliminateUnreachablePhis(); 237 void EliminateUnreachablePhis();
238 void Canonicalize(); 238 void Canonicalize();
239 void OrderBlocks(); 239 void OrderBlocks();
240 void AssignDominators(); 240 void AssignDominators();
241 void ReplaceCheckedValues(); 241 void ReplaceCheckedValues();
242 void PropagateDeoptimizingMark(); 242 void PropagateDeoptimizingMark();
243 243
244 // Returns false if there are phi-uses of the arguments-object 244 // Returns false if there are phi-uses of the arguments-object
245 // which are not supported by the optimizing compiler. 245 // which are not supported by the optimizing compiler.
246 bool CheckPhis(); 246 bool CheckArgumentsPhiUses();
247 247
248 // Returns false if there are phi-uses of hole values comming 248 // Returns false if there are phi-uses of an uninitialized const
249 // from uninitialized consts. 249 // which are not supported by the optimizing compiler.
250 bool CollectPhis(); 250 bool CheckConstPhiUses();
251
252 void CollectPhis();
251 253
252 Handle<Code> Compile(CompilationInfo* info); 254 Handle<Code> Compile(CompilationInfo* info);
253 255
254 void set_undefined_constant(HConstant* constant) { 256 void set_undefined_constant(HConstant* constant) {
255 undefined_constant_.set(constant); 257 undefined_constant_.set(constant);
256 } 258 }
257 HConstant* GetConstantUndefined() const { return undefined_constant_.get(); } 259 HConstant* GetConstantUndefined() const { return undefined_constant_.get(); }
258 HConstant* GetConstant1(); 260 HConstant* GetConstant1();
259 HConstant* GetConstantMinus1(); 261 HConstant* GetConstantMinus1();
260 HConstant* GetConstantTrue(); 262 HConstant* GetConstantTrue();
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276 int GetNextValueID(HValue* value) { 278 int GetNextValueID(HValue* value) {
277 values_.Add(value); 279 values_.Add(value);
278 return values_.length() - 1; 280 return values_.length() - 1;
279 } 281 }
280 HValue* LookupValue(int id) const { 282 HValue* LookupValue(int id) const {
281 if (id >= 0 && id < values_.length()) return values_[id]; 283 if (id >= 0 && id < values_.length()) return values_[id];
282 return NULL; 284 return NULL;
283 } 285 }
284 286
285 #ifdef DEBUG 287 #ifdef DEBUG
286 void Verify() const; 288 void Verify(bool do_full_verify) const;
287 #endif 289 #endif
288 290
289 private: 291 private:
290 void Postorder(HBasicBlock* block, 292 void Postorder(HBasicBlock* block,
291 BitVector* visited, 293 BitVector* visited,
292 ZoneList<HBasicBlock*>* order, 294 ZoneList<HBasicBlock*>* order,
293 HBasicBlock* loop_header); 295 HBasicBlock* loop_header);
294 void PostorderLoopBlocks(HLoopInformation* loop, 296 void PostorderLoopBlocks(HLoopInformation* loop,
295 BitVector* visited, 297 BitVector* visited,
296 ZoneList<HBasicBlock*>* order, 298 ZoneList<HBasicBlock*>* order,
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903 void HandleCompoundAssignment(Assignment* expr); 905 void HandleCompoundAssignment(Assignment* expr);
904 void HandlePolymorphicStoreNamedField(Assignment* expr, 906 void HandlePolymorphicStoreNamedField(Assignment* expr,
905 HValue* object, 907 HValue* object,
906 HValue* value, 908 HValue* value,
907 SmallMapList* types, 909 SmallMapList* types,
908 Handle<String> name); 910 Handle<String> name);
909 void HandlePolymorphicCallNamed(Call* expr, 911 void HandlePolymorphicCallNamed(Call* expr,
910 HValue* receiver, 912 HValue* receiver,
911 SmallMapList* types, 913 SmallMapList* types,
912 Handle<String> name); 914 Handle<String> name);
913 void HandleLiteralCompareTypeof(CompareOperation* compare_expr, 915 bool TryLiteralCompare(CompareOperation* expr);
914 Expression* expr, 916 void HandleLiteralCompareTypeof(CompareOperation* expr,
917 Expression* sub_expr,
915 Handle<String> check); 918 Handle<String> check);
916 void HandleLiteralCompareUndefined(CompareOperation* compare_expr, 919 void HandleLiteralCompareNil(CompareOperation* expr,
917 Expression* expr); 920 Expression* sub_expr,
921 NilValue nil);
918 922
919 HStringCharCodeAt* BuildStringCharCodeAt(HValue* context, 923 HStringCharCodeAt* BuildStringCharCodeAt(HValue* context,
920 HValue* string, 924 HValue* string,
921 HValue* index); 925 HValue* index);
922 HInstruction* BuildBinaryOperation(BinaryOperation* expr, 926 HInstruction* BuildBinaryOperation(BinaryOperation* expr,
923 HValue* left, 927 HValue* left,
924 HValue* right); 928 HValue* right);
925 HInstruction* BuildIncrement(bool returns_original_input, 929 HInstruction* BuildIncrement(bool returns_original_input,
926 CountOperation* expr); 930 CountOperation* expr);
927 HLoadNamedField* BuildLoadNamedField(HValue* object, 931 HLoadNamedField* BuildLoadNamedField(HValue* object,
928 Property* expr, 932 Property* expr,
929 Handle<Map> type, 933 Handle<Map> type,
930 LookupResult* result, 934 LookupResult* result,
931 bool smi_and_map_check); 935 bool smi_and_map_check);
932 HInstruction* BuildLoadNamedGeneric(HValue* object, Property* expr); 936 HInstruction* BuildLoadNamedGeneric(HValue* object, Property* expr);
933 HInstruction* BuildLoadKeyedGeneric(HValue* object, 937 HInstruction* BuildLoadKeyedGeneric(HValue* object,
934 HValue* key); 938 HValue* key);
935 HInstruction* BuildExternalArrayElementAccess( 939 HInstruction* BuildExternalArrayElementAccess(
936 HValue* external_elements, 940 HValue* external_elements,
937 HValue* checked_key, 941 HValue* checked_key,
938 HValue* val, 942 HValue* val,
939 ElementsKind elements_kind, 943 ElementsKind elements_kind,
940 bool is_store); 944 bool is_store);
945 HInstruction* BuildFastElementAccess(HValue* elements,
946 HValue* checked_key,
947 HValue* val,
948 ElementsKind elements_kind,
949 bool is_store);
941 950
942 HInstruction* BuildMonomorphicElementAccess(HValue* object, 951 HInstruction* BuildMonomorphicElementAccess(HValue* object,
943 HValue* key, 952 HValue* key,
944 HValue* val, 953 HValue* val,
945 Expression* expr, 954 Expression* expr,
946 bool is_store); 955 bool is_store);
947 HValue* HandlePolymorphicElementAccess(HValue* object, 956 HValue* HandlePolymorphicElementAccess(HValue* object,
948 HValue* key, 957 HValue* key,
949 HValue* val, 958 HValue* val,
950 Expression* prop, 959 Expression* prop,
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1232 const char* filename_; 1241 const char* filename_;
1233 HeapStringAllocator string_allocator_; 1242 HeapStringAllocator string_allocator_;
1234 StringStream trace_; 1243 StringStream trace_;
1235 int indent_; 1244 int indent_;
1236 }; 1245 };
1237 1246
1238 1247
1239 } } // namespace v8::internal 1248 } } // namespace v8::internal
1240 1249
1241 #endif // V8_HYDROGEN_H_ 1250 #endif // V8_HYDROGEN_H_
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