diff --git a/src/arm/macro-assembler-arm.h b/src/arm/macro-assembler-arm.h
index 9c653ad..6084fde 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -532,6 +532,16 @@
                                Register scratch1,
                                Register scratch2,
                                Label* gc_required);
+  void AllocateTwoByteSlicedString(Register result,
+                                   Register length,
+                                   Register scratch1,
+                                   Register scratch2,
+                                   Label* gc_required);
+  void AllocateAsciiSlicedString(Register result,
+                                 Register length,
+                                 Register scratch1,
+                                 Register scratch2,
+                                 Label* gc_required);
 
   // Allocates a heap number or jumps to the gc_required label if the young
   // space is full and a scavenge is needed. All registers are clobbered also
@@ -586,9 +596,7 @@
 
   // Compare instance type in a map.  map contains a valid map object whose
   // object type should be compared with the given type.  This both
-  // sets the flags and leaves the object type in the type_reg register.  It
-  // leaves the heap object in the heap_object register unless the heap_object
-  // register is the same register as type_reg.
+  // sets the flags and leaves the object type in the type_reg register.
   void CompareInstanceType(Register map,
                            Register type_reg,
                            InstanceType type);