Mark optimized code that used CHA for optimization so that lazy class 'finalization' does not inval…

runtime/vm/object.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_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 3186 matching lines @@
   }
 
   bool is_optimized() const {
     return OptimizedBit::decode(raw_ptr()->state_bits_);
   }
   void set_is_optimized(bool value) const;
   bool is_alive() const {
     return AliveBit::decode(raw_ptr()->state_bits_);
   }
   void set_is_alive(bool value) const;
+  bool has_used_cha() const {
+    return UsedCHABit::decode(raw_ptr()->state_bits_);
+  }
+  void set_has_used_cha(bool value) const;
 
   uword EntryPoint() const {
     const Instructions& instr = Instructions::Handle(instructions());
     return instr.EntryPoint();
   }
   intptr_t Size() const {
     const Instructions& instr = Instructions::Handle(instructions());
     return instr.size();
   }
   RawArray* ObjectPool() const {
@@ skipping 162 matching lines @@
   // Returns an array indexed by deopt id, containing the extracted ICData.
   RawArray* ExtractTypeFeedbackArray() const;
 
  private:
   void set_state_bits(intptr_t bits) const;
 
   friend class RawCode;
   enum {
     kOptimizedBit = 0,
     kAliveBit = 1,
+    kUsedCHABit = 2,
   };
 
   class OptimizedBit : public BitField<bool, kOptimizedBit, 1> {};
   class AliveBit : public BitField<bool, kAliveBit, 1> {};
+  class UsedCHABit : public BitField<bool, kUsedCHABit, 1> {};
 
   // An object finder visitor interface.
   class FindRawCodeVisitor : public FindObjectVisitor {
    public:
     explicit FindRawCodeVisitor(uword pc)
         : FindObjectVisitor(Isolate::Current()), pc_(pc) { }
     virtual ~FindRawCodeVisitor() { }
 
     virtual uword filter_addr() const { return pc_; }
 
@@ skipping 3225 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_