Collect AstNode type information

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 68711769444ccd9bf9a095283815a572f5919cf3..0f941a7b8ed2f53a50ef48509c966b0995e05cd4 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -5197,6 +5197,9 @@ class SharedFunctionInfo: public HeapObject {
   inline Smi* deopt_counter();
   inline void set_deopt_counter(Smi* counter);
 
+  inline int ast_node_count();
+  inline void set_ast_node_count(int count);
+
   // Add information on assignments of the form this.x = ...;
   void SetThisPropertyAssignmentsInfo(
       bool has_only_simple_this_property_assignments,
@@ -5269,6 +5272,12 @@ class SharedFunctionInfo: public HeapObject {
   // through the API, which does not change this flag).
   DECL_BOOLEAN_ACCESSORS(is_anonymous)
 
+  // Indicates that the function cannot be crankshafted.
+  DECL_BOOLEAN_ACCESSORS(dont_crankshaft)
+
+  // Indicates that the function cannot be inlined.
+  DECL_BOOLEAN_ACCESSORS(dont_inline)
+
   // Indicates whether or not the code in the shared function support
   // deoptimization.
   inline bool has_deoptimization_support();
@@ -5365,10 +5374,11 @@ class SharedFunctionInfo: public HeapObject {
       kInitialMapOffset + kPointerSize;
   static const int kDeoptCounterOffset =
       kThisPropertyAssignmentsOffset + kPointerSize;
+  static const int kAstNodeCountOffset = kDeoptCounterOffset + kPointerSize;
 #if V8_HOST_ARCH_32_BIT
   // Smi fields.
   static const int kLengthOffset =
-      kDeoptCounterOffset + kPointerSize;
+      kAstNodeCountOffset + kPointerSize;
   static const int kFormalParameterCountOffset = kLengthOffset + kPointerSize;
   static const int kExpectedNofPropertiesOffset =
       kFormalParameterCountOffset + kPointerSize;
@@ -5399,7 +5409,7 @@ 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;
+      kAstNodeCountOffset + kPointerSize;

[fschneider, 2012/01/30 13:54:26]

You could reduce the x64 version by pairing two properties from above like done
for the ones below here.

[Jakob Kummerow, 2012/02/01 14:46:09]

Done.

   static const int kFormalParameterCountOffset =
       kLengthOffset + kIntSize;
 
@@ -5471,6 +5481,8 @@ class SharedFunctionInfo: public HeapObject {
     kBoundFunction,
     kIsAnonymous,
     kNameShouldPrintAsAnonymous,
+    kDontCrankshaft,
+    kDontInline,
     kCompilerHintsCount  // Pseudo entry
   };