Optimize calls to object literal properties that are initialized with a funct...

src/x64/full-codegen-x64.cc

Index: src/x64/full-codegen-x64.cc
===================================================================
--- src/x64/full-codegen-x64.cc	(revision 6540)
+++ src/x64/full-codegen-x64.cc	(working copy)
@@ -1218,7 +1218,13 @@
   __ push(FieldOperand(rdi, JSFunction::kLiteralsOffset));
   __ Push(Smi::FromInt(expr->literal_index()));
   __ Push(expr->constant_properties());
-  __ Push(Smi::FromInt(expr->fast_elements() ? 1 : 0));
+  int flags = expr->fast_elements()
+      ? ObjectLiteral::kFastElements
+      : ObjectLiteral::kNoFlags;
+  flags |= expr->has_function()
+      ? ObjectLiteral::kHasFunction
+      : ObjectLiteral::kNoFlags;
+  __ push(Immediate(Smi::FromInt(flags)));
   if (expr->depth() > 1) {
     __ CallRuntime(Runtime::kCreateObjectLiteral, 4);
   } else {
@@ -1286,6 +1292,12 @@
     }
   }
 
+  if (expr->has_function()) {
+    ASSERT(result_saved);
+    __ push(Operand(esp, 0));
+    __ CallRuntime(Runtime::kToFastProperties, 1);
+  }
+
   if (result_saved) {
     context()->PlugTOS();
   } else {