New approach to Crankshaft decision-making

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 5af771828999fc9b9a0370c6e2736e298f93c019..292de00630d2d368a560eafb61c40c8d1a07f821 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -4994,7 +4994,10 @@ class SharedFunctionInfo: public HeapObject {
   inline Smi* deopt_counter();
   inline void set_deopt_counter(Smi* counter);
 
-  // Add information on assignments of the form this.x = ...;
+  inline int profiler_ticks();
+  inline void set_profiler_ticks(int ticks);
+
+    // Add information on assignments of the form this.x = ...;
   void SetThisPropertyAssignmentsInfo(
       bool has_only_simple_this_property_assignments,
       FixedArray* this_property_assignments);
@@ -5173,10 +5176,12 @@ class SharedFunctionInfo: public HeapObject {
       kInitialMapOffset + kPointerSize;
   static const int kDeoptCounterOffset =
       kThisPropertyAssignmentsOffset + kPointerSize;
+  static const int kProfilerTicksOffset =
+      kDeoptCounterOffset + kPointerSize;
 #if V8_HOST_ARCH_32_BIT
   // Smi fields.
   static const int kLengthOffset =
-      kDeoptCounterOffset + kPointerSize;
+      kProfilerTicksOffset + kPointerSize;
   static const int kFormalParameterCountOffset = kLengthOffset + kPointerSize;
   static const int kExpectedNofPropertiesOffset =
       kFormalParameterCountOffset + kPointerSize;
@@ -5207,7 +5212,7 @@ class SharedFunctionInfo: public HeapObject {
   // word is not set and thus this word cannot be treated as pointer
   // to HeapObject during old space traversal.
   static const int kLengthOffset =
-      kDeoptCounterOffset + kPointerSize;
+      kProfilerTicksOffset + kPointerSize;
   static const int kFormalParameterCountOffset =
       kLengthOffset + kIntSize;