Store optimized flow graph statistics on the function itself.

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 1270 matching lines @@
     raw_ptr()->usage_counter_ = value;
   }
 
   int16_t deoptimization_counter() const {
     return raw_ptr()->deoptimization_counter_;
   }
   void set_deoptimization_counter(int16_t value) const {
     raw_ptr()->deoptimization_counter_ = value;
   }
 
+  static const intptr_t kMaxInstructionCount = (1 << 16) - 1;
+  intptr_t optimized_instruction_count() const {
+    return raw_ptr()->optimized_instruction_count_;
+  }
+  void set_optimized_instruction_count(intptr_t value) const {
+    ASSERT(value >= 0);
+    if (value > kMaxInstructionCount) {
+      value = kMaxInstructionCount;
+    }
+    raw_ptr()->optimized_instruction_count_ = static_cast<uint16_t>(value);
+  }
+
+  intptr_t optimized_call_site_count() const {
+    return raw_ptr()->optimized_call_site_count_;
+  }
+  void set_optimized_call_site_count(intptr_t value) const {
+    ASSERT(value >= 0);
+    if (value > kMaxInstructionCount) {
+      value = kMaxInstructionCount;
+    }
+    raw_ptr()->optimized_call_site_count_ = static_cast<uint16_t>(value);
+  }
+
   bool is_optimizable() const;
   void set_is_optimizable(bool value) const;
 
   bool has_finally() const {
     return HasFinallyBit::decode(raw_ptr()->kind_tag_);
   }
   void set_has_finally(bool value) const;
 
   bool is_native() const { return NativeBit::decode(raw_ptr()->kind_tag_); }
   void set_is_native(bool value) const;
@@ skipping 4867 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_