Implement crankshaft support for pixel array loads.

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index 2aee5d72a4e10bbf830b3bd405abda681df79f0b..093624146fdb379b493c29d5be803b59cf7c9a27 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -1208,6 +1208,7 @@ class Property: public Expression {
         receiver_types_(NULL),
         is_monomorphic_(false),
         is_array_length_(false),
+        has_pixel_array_elements_(false),

[Kevin Millikin (Chromium), 2011/02/07 12:39:08]

This field seems to be unused.

[danno, 2011/02/08 09:25:57]

Done.

         is_string_length_(false),
         is_function_prototype_(false),
         is_arguments_access_(false) { }
@@ -1237,6 +1238,7 @@ class Property: public Expression {
   virtual bool IsMonomorphic() { return is_monomorphic_; }
   virtual ZoneMapList* GetReceiverTypes() { return receiver_types_; }
   virtual bool IsArrayLength() { return is_array_length_; }
+  virtual bool HasPixelArrayElements() { return has_pixel_array_elements_; }
   virtual Handle<Map> GetMonomorphicReceiverType() {
     return monomorphic_receiver_type_;
   }
@@ -1254,6 +1256,7 @@ class Property: public Expression {
   ZoneMapList* receiver_types_;
   bool is_monomorphic_ : 1;
   bool is_array_length_ : 1;
+  bool has_pixel_array_elements_ : 1;
   bool is_string_length_ : 1;
   bool is_function_prototype_ : 1;
   bool is_arguments_access_ : 1;