Support all fast elements kinds in the major array operations.

src/elements.h

Index: src/elements.h
diff --git a/src/elements.h b/src/elements.h
index 8a83f0fee8581f48455205dae1bfa2b6d91842a5..dbc67e99915b8ebb4e4ab2fa88898740a1b21b3c 100644
--- a/src/elements.h
+++ b/src/elements.h
@@ -184,6 +184,30 @@ void CopyObjectToObjectElements(FixedArray* from_obj,
                                 uint32_t to_start,
                                 int copy_size);
 
+MaybeObject* CopyDoubleToObjectElements(FixedDoubleArray* from_obj,

[danno, 2012/11/13 22:05:12]

Do you really need to add these here? Or can you get away with ElementsAccessors
everywhere?

[Toon Verwaest, 2012/11/14 11:53:13]

Done.

+                                        uint32_t from_start,
+                                        FixedArray* to_obj,
+                                        ElementsKind to_kind,
+                                        uint32_t to_start,
+                                        int copy_size);
+
+void CopySmiToSmiElements(FixedArray* from_obj,
+                          uint32_t from_start,
+                          FixedArray* to_obj,
+                          uint32_t to_start,
+                          int copy_size);
+
+void CopySmiToDoubleElements(FixedArray* from_obj,
+                             uint32_t from_start,
+                             FixedDoubleArray* to_obj,
+                             uint32_t to_start,
+                             int copy_size);
+
+void CopyDoubleToDoubleElements(FixedDoubleArray* from_obj,
+                                uint32_t from_start,
+                                FixedDoubleArray* to_obj,
+                                uint32_t to_start,
+                                int copy_size);
 
 } }  // namespace v8::internal