Clean up JSConstructStub

src/arm64/builtins-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/codegen.h"
 #include "src/debug.h"
@@ skipping 504 matching lines @@
         prop_fields = NoReg;
       }
 
       // Add the object tag to make the JSObject real, so that we can continue
       // and jump into the continuation code at any time from now on. Any
       // failures need to undo the allocation, so that the heap is in a
       // consistent state and verifiable.
       __ Add(new_obj, new_obj, kHeapObjectTag);
 
       // Check if a non-empty properties array is needed. Continue with
-      // allocated object if not, or fall through to runtime call if it is.
+      // allocated object if not; allocate and initialize a FixedArray if yes.
       Register element_count = x3;
       __ Ldrb(element_count,
               FieldMemOperand(init_map, Map::kUnusedPropertyFieldsOffset));
       // The field instance sizes contains both pre-allocated property fields
       // and in-object properties.
       __ Add(element_count, element_count, prealloc_fields);
       __ Subs(element_count, element_count, inobject_props);
 
       // Done if no extra properties are to be allocated.
       __ B(eq, &allocated);
@@ skipping 1296 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM