Handle single element array growth + transition in generic KeyedStoreIC

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index fc91d7c3dfc61c95e92bfb0ec8a4b21982e3dd5f..8e4232dfaa1bab07b855af8013e9e9c0304c0401 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -221,10 +221,21 @@ class MacroAssembler: public Assembler {
   // Find the function context up the context chain.
   void LoadContext(Register dst, int context_chain_length);
 
-  // Load the initial map for new Arrays of a given type.
-  void LoadGlobalInitialConstructedArrayMap(Register function_in,
-                                            Register scratch,
-                                            Register map_out);
+  // Conditionally load the cached Array transitioned map of type
+  // transitioned_kind from the global context if the map in register
+  // map_in_out is the cached Array map in the global context of
+  // expected_kind.
+  void LoadTransitionedArrayMapConditional(
+      ElementsKind expected_kind,
+      ElementsKind transitioned_kind,
+      Register map_in_out,
+      Register scratch,
+      Label* no_map_match);
+
+  // Load the initial map for a new Arrays from a JSFunction.

[Michael Starzinger, 2012/02/01 08:53:26]

Drop the "a" in the comment.

[danno, 2012/02/06 14:13:14]

Done.

+  void LoadInitialArrayMap(Register function_in,
+                           Register scratch,
+                           Register map_out);
 
   // Load the global function with the given index.
   void LoadGlobalFunction(int index, Register function);