Reduced malloc/free operations in the parser.

src/jump-target.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 86 matching lines @@
     ASSERT(!all_identical || all_identical);
   }
 #endif
 
   // Choose an initial frame.
   VirtualFrame* initial_frame = reaching_frames_[0];
 
   // A list of pointers to frame elements in the entry frame.  NULL
   // indicates that the element has not yet been determined.
   int length = initial_frame->elements_.length();
-  List<FrameElement*> elements(length);
+  ZoneList<FrameElement*> elements(length);
 
   // Convert the number of mergable elements (counted from the top
   // down) to a frame high-water mark (counted from the bottom up).
   // Elements strictly above the high-water index will be mergable in
   // entry frames for bidirectional jump targets.
   int high_water_mark = (mergable_elements == kAllElements)
       ? VirtualFrame::kIllegalIndex  // All frame indices are above this.
       : length - mergable_elements - 1;  // Top index if m_e == 0.
 
   // Initially populate the list of elements based on the initial
@@ skipping 553 matching lines @@
   temp.CopyTo(this);
   temp.Unuse();
 
 #ifdef DEBUG
   is_shadowing_ = false;
 #endif
 }
 
 
 } }  // namespace v8::internal