--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/opto/countbitsnode.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_OPTO_COUNTBITSNODE_HPP
+#define SHARE_VM_OPTO_COUNTBITSNODE_HPP
+
+#include "opto/node.hpp"
+#include "opto/opcodes.hpp"
+
+class PhaseTransform;
+
+//---------- CountBitsNode -----------------------------------------------------
+class CountBitsNode : public Node {
+  public:
+  CountBitsNode(Node* in1) : Node(0, in1) {}
+  const Type* bottom_type() const { return TypeInt::INT; }
+  virtual uint ideal_reg() const { return Op_RegI; }
+};
+
+//---------- CountLeadingZerosINode --------------------------------------------
+// Count leading zeros (0-bit count starting from MSB) of an integer.
+class CountLeadingZerosINode : public CountBitsNode {
+  public:
+  CountLeadingZerosINode(Node* in1) : CountBitsNode(in1) {}
+  virtual int Opcode() const;
+  virtual const Type* Value(PhaseGVN* phase) const;
+};
+
+//---------- CountLeadingZerosLNode --------------------------------------------
+// Count leading zeros (0-bit count starting from MSB) of a long.
+class CountLeadingZerosLNode : public CountBitsNode {
+  public:
+  CountLeadingZerosLNode(Node* in1) : CountBitsNode(in1) {}
+  virtual int Opcode() const;
+  virtual const Type* Value(PhaseGVN* phase) const;
+};
+
+//---------- CountTrailingZerosINode -------------------------------------------
+// Count trailing zeros (0-bit count starting from LSB) of an integer.
+class CountTrailingZerosINode : public CountBitsNode {
+  public:
+  CountTrailingZerosINode(Node* in1) : CountBitsNode(in1) {}
+  virtual int Opcode() const;
+  virtual const Type* Value(PhaseGVN* phase) const;
+};
+
+//---------- CountTrailingZerosLNode -------------------------------------------
+// Count trailing zeros (0-bit count starting from LSB) of a long.
+class CountTrailingZerosLNode : public CountBitsNode {
+  public:
+  CountTrailingZerosLNode(Node* in1) : CountBitsNode(in1) {}
+  virtual int Opcode() const;
+  virtual const Type* Value(PhaseGVN* phase) const;
+};
+
+//---------- PopCountINode -----------------------------------------------------
+// Population count (bit count) of an integer.
+class PopCountINode : public CountBitsNode {
+  public:
+  PopCountINode(Node* in1) : CountBitsNode(in1) {}
+  virtual int Opcode() const;
+};
+
+//---------- PopCountLNode -----------------------------------------------------
+// Population count (bit count) of a long.
+class PopCountLNode : public CountBitsNode {
+  public:
+  PopCountLNode(Node* in1) : CountBitsNode(in1) {}
+  virtual int Opcode() const;
+};
+
+
+#endif // SHARE_VM_OPTO_COUNTBITSNODE_HPP