Added type propagation from store to load locals, but only within a sequence node (not across bas...

vm/opt_code_generator_ia32.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OPT_CODE_GENERATOR_IA32_H_
 #define VM_OPT_CODE_GENERATOR_IA32_H_
 
 #ifndef VM_OPT_CODE_GENERATOR_H_
 #error Do not include opt_code_generator_ia32.h; use opt_code_generator.h.
 #endif
 
 #include "vm/code_generator.h"
 
 namespace dart {
 
 // Forward declarations.
+class ClassesForLocals;
 class DeoptimizationBlob;
 
 // Temporary hierarchy, until optimized code generator implemented.
 // The optimizing compiler does not run if type checks are enabled.
 class OptimizingCodeGenerator : public CodeGenerator {
  public:
   OptimizingCodeGenerator(Assembler* assembler,
                           const ParsedFunction& parsed_function);
 
   virtual void VisitBinaryOpNode(BinaryOpNode* node);
   virtual void VisitIncrOpLocalNode(IncrOpLocalNode* node);
   virtual void VisitIncrOpInstanceFieldNode(IncrOpInstanceFieldNode* node);
   virtual void VisitInstanceGetterNode(InstanceGetterNode* node);
   virtual void VisitInstanceSetterNode(InstanceSetterNode* node);
   virtual void VisitComparisonNode(ComparisonNode* node);
   virtual void VisitLoadIndexedNode(LoadIndexedNode* node);
   virtual void VisitStoreIndexedNode(StoreIndexedNode* node);
   virtual void VisitLiteralNode(LiteralNode* node);
   virtual void VisitLoadLocalNode(LoadLocalNode* node);
   virtual void VisitStoreLocalNode(StoreLocalNode* node);
   virtual void VisitForNode(ForNode* node);
   virtual void VisitDoWhileNode(DoWhileNode* node);
   virtual void VisitWhileNode(WhileNode* node);
   virtual void VisitIfNode(IfNode* node);
   virtual void VisitInstanceCallNode(InstanceCallNode* node);
   virtual void VisitStaticCallNode(StaticCallNode* node);
   virtual void VisitReturnNode(ReturnNode* node);
   virtual void VisitSequenceNode(SequenceNode* node_sequence);
   virtual void VisitStoreInstanceFieldNode(StoreInstanceFieldNode* node);
+  virtual void VisitCatchClauseNode(CatchClauseNode* node);
+  virtual void VisitTryCatchNode(TryCatchNode* node);
 
   // Return true if intrinsification succeeded and no more code is needed.
   // Returns false if either no intrinsification occured or if intrinsified
   // code needs the rest for slow case execution.
   virtual bool TryIntrinsify();
   virtual void GeneratePreEntryCode();
   virtual bool IsOptimizing() const { return true; }
 
   virtual void CountBackwardLoop() {}
   virtual void GenerateDeferredCode();
@@ skipping 92 matching lines @@
   bool TryInlineStaticCall(StaticCallNode* node);
 
   bool IsResultInEaxRequested(AstNode* node) const;
   bool NodeMayBeSmi(AstNode* node) const;
 
   void PrintCollectedClassesAtId(AstNode* node, intptr_t id);
   void TraceOpt(AstNode* node, const char* message);
   void TraceNotOpt(AstNode* node, const char* message);
 
   GrowableArray<DeoptimizationBlob*> deoptimization_blobs_;
+  ClassesForLocals* classes_for_locals_;
   const Class& smi_class_;
   const Class& double_class_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(OptimizingCodeGenerator);
 };
 
 }  // namespace dart
 
 
 #endif  // VM_OPT_CODE_GENERATOR_IA32_H_