Introduced copy constructor for List<T, P> and changed constructor of Virtual...

src/virtual-frame.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 21 matching lines @@
 
 namespace v8 { namespace internal {
 
 // -------------------------------------------------------------------------
 // VirtualFrame implementation.
 
 // When cloned, a frame is a deep copy of the original.
 VirtualFrame::VirtualFrame(VirtualFrame* original)
     : cgen_(original->cgen_),
       masm_(original->masm_),
-      elements_(original->elements_.capacity()),
+      elements_(original->elements_),
       parameter_count_(original->parameter_count_),
       local_count_(original->local_count_),
       stack_pointer_(original->stack_pointer_),
       frame_pointer_(original->frame_pointer_) {
-  // Copy all the elements from the original.
-  for (int i = 0; i < original->elements_.length(); i++) {
-    elements_.Add(original->elements_[i]);
-  }
-  for (int i = 0; i < kNumRegisters; i++) {
-    register_locations_[i] = original->register_locations_[i];
-  }
+  // Copy register locations from original.
+  memcpy(&register_locations_,
+         original->register_locations_,
+         sizeof(register_locations_));
 }
 
 
 FrameElement VirtualFrame::CopyElementAt(int index) {
   ASSERT(index >= 0);
   ASSERT(index < elements_.length());
 
   FrameElement target = elements_[index];
   FrameElement result;
 
@@ skipping 341 matching lines @@
 // Specialization of List::ResizeAdd to non-inlined version for FrameElements.
 // The function ResizeAdd becomes a real function, whose implementation is the
 // inlined ResizeAddInternal.
 template <>
 void List<FrameElement,
           FreeStoreAllocationPolicy>::ResizeAdd(const FrameElement& element) {
   ResizeAddInternal(element);
 }
 
 } }  // namespace v8::internal