Started new compiler for ia32. Getters and setters can be intrinsified within the new compiler.

runtime/vm/flow_graph_compiler_ia32.h

 // Copyright (c) 2012, 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_FLOW_GRAPH_COMPILER_IA32_H_
 #define VM_FLOW_GRAPH_COMPILER_IA32_H_
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #error Include flow_graph_compiler.h instead of flow_graph_compiler_ia32.h.
 #endif
 
+#include "vm/assembler.h"
+#include "vm/assembler_macros.h"
+#include "vm/code_descriptors.h"
+#include "vm/code_generator.h"
 #include "vm/intermediate_language.h"
 
 namespace dart {
 
 class Assembler;
 class Code;
+class DeoptimizationStub;
 template <typename T> class GrowableArray;
 class ParsedFunction;
+class StackMapBuilder;
 
 // Stubbed out implementation of graph compiler, bails out immediately if
 // CompileGraph is called. The rest of the public API is UNIMPLEMENTED.
 class FlowGraphCompiler : public FlowGraphVisitor {
  public:
   FlowGraphCompiler(Assembler* assembler,
                     const ParsedFunction& parsed_function,
-                    const GrowableArray<BlockEntryInstr*>& blocks,
-                    bool is_optimizing)
-      : FlowGraphVisitor(blocks),
-        parsed_function_(parsed_function),
-        is_optimizing_(is_optimizing) {
-  }
+                    const GrowableArray<BlockEntryInstr*>& block_order,
+                    bool is_optimizing);
 
-  virtual ~FlowGraphCompiler() { }
+  virtual ~FlowGraphCompiler();
 
   void CompileGraph();
 
   // Infrastructure copied from class CodeGenerator or stubbed out.
   void FinalizePcDescriptors(const Code& code);
   void FinalizeStackmaps(const Code& code);
   void FinalizeVarDescriptors(const Code& code);
   void FinalizeExceptionHandlers(const Code& code);
   void FinalizeComments(const Code& code);
 
+  Assembler* assembler() const { return assembler_; }
+
  private:
+  friend class DeoptimizationStub;
+
   // Bail out of the flow graph compiler.  Does not return to the caller.
   void Bailout(const char* reason);
 
+  virtual void VisitBlocks();
+
+  BlockEntryInstr* current_block() const { return current_block_; }
+
+  // Constructor is lighweight, major initialization work should occur here.
+  // This makes it easier to measure time spent in the compiler.
+  void InitCompiler();
+
+  struct BlockInfo : public ZoneAllocated {
+   public:
+    BlockInfo() : label() { }
+
+    Label label;
+  };
+
+  void GenerateCallRuntime(intptr_t cid,
+                           intptr_t token_index,
+                           intptr_t try_index,
+                           const RuntimeEntry& entry);
+  void AddCurrentDescriptor(PcDescriptors::Kind kind,
+                            intptr_t cid,
+                            intptr_t token_index,
+                            intptr_t try_index);
+  void CopyParameters();
+  void EmitInstructionPrologue(Instruction* instr);
+
+  intptr_t StackSize() const;
+
+  bool CanOptimize();
+  bool TryIntrinsify();
+  void IntrinsifyGetter();
+  void IntrinsifySetter();
+
+  void GenerateDeferredCode();
+  void EmitComment(Instruction* instr);
+  void BailoutOnInstruction(Instruction* instr);
+
+  Assembler* assembler_;
   const ParsedFunction& parsed_function_;
+
+  // Compiler specific per-block state.  Indexed by postorder block number
+  // for convenience.  This is not the block's index in the block order,
+  // which is reverse postorder.
+  GrowableArray<BlockInfo*> block_info_;
+  BlockEntryInstr* current_block_;
+  DescriptorList* pc_descriptors_list_;
+  StackmapBuilder* stackmap_builder_;
+  ExceptionHandlerList* exception_handlers_list_;
+  GrowableArray<DeoptimizationStub*> deopt_stubs_;
   const bool is_optimizing_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_IA32_H_