src/share/vm/gc/g1/g1ConcurrentMarkObjArrayProcessor.hpp

rev 12511 : [mq]: 8168467-use-taskentry-as-mark-stack-elem

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -34,36 +34,26 @@
 // Instead of pushing large object arrays, we push continuations onto the
 // mark stack. These continuations are identified by having their LSB set.
 // This allows incremental processing of large objects.
 class G1CMObjArrayProcessor VALUE_OBJ_CLASS_SPEC {
 private:
-  // The bit mask for the continuation indicator of elements on the mark stack.
-  static const size_t ArraySliceBit = 1;
-
   // Reference to the task for doing the actual work.
   G1CMTask* _task;
 
-  // Encodes the given address as a continuation "oop".
-  oop encode_array_slice(HeapWord* addr);
-  // Remove the continuation marker from the given oop from the mark stack.
-  HeapWord* decode_array_slice(oop value);
-
   // Push the continuation at the given address onto the mark stack.
   void push_array_slice(HeapWord* addr);
 
   // Process (apply the closure) on the given continuation of the given objArray.
   size_t process_array_slice(objArrayOop const obj, HeapWord* start_from, size_t remaining);
 public:
-  static bool is_array_slice(void* obj) { return ((uintptr_t)obj & ArraySliceBit) != 0; }
-
   static bool should_be_sliced(oop obj);
 
   G1CMObjArrayProcessor(G1CMTask* task) : _task(task) {
   }
 
   // Process the given continuation "oop". Returns the number of words scanned.
-  size_t process_slice(oop obj);
+  size_t process_slice(HeapWord* slice);
   // Start processing the given objArrayOop by scanning the header and pushing its
   // continuation.
   size_t process_obj(oop obj);
 };