/*+
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 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.+
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.+
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 *+
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 * This code is free software; you can redistribute it and/or modify it+
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 * under the terms of the GNU General Public License version 2 only, as+
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 * published by the Free Software Foundation.+
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 *+
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 * This code is distributed in the hope that it will be useful, but WITHOUT+
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License+
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 * version 2 for more details (a copy is included in the LICENSE file that+
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 * accompanied this code).+
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 *+
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 * You should have received a copy of the GNU General Public License version+
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 * 2 along with this work; if not, write to the Free Software Foundation,+
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.+
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 *+
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA+
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 * or visit www.oracle.com if you need additional information or have any+
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 * questions.+
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 *+
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 */+
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+
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#ifndef SHARE_VM_OPTO_MATHEXACTNODE_HPP+
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#define SHARE_VM_OPTO_MATHEXACTNODE_HPP+
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+
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#include "opto/multnode.hpp"+
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#include "opto/node.hpp"+
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#include "opto/addnode.hpp"+
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#include "opto/subnode.hpp"+
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#include "opto/type.hpp"+
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+
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class PhaseGVN;+
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class PhaseTransform;+
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+
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class OverflowNode : public CmpNode {+
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public:+
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  OverflowNode(Node* in1, Node* in2) : CmpNode(in1, in2) {}+
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+
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  virtual uint ideal_reg() const { return Op_RegFlags; }+
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  virtual const Type* sub(const Type* t1, const Type* t2) const;+
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};+
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+
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class OverflowINode : public OverflowNode {+
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public:+
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  typedef TypeInt TypeClass;+
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+
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  OverflowINode(Node* in1, Node* in2) : OverflowNode(in1, in2) {}+
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  virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);+
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  virtual const Type* Value(PhaseGVN* phase) const;+
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+
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  virtual bool will_overflow(jint v1, jint v2) const = 0;+
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  virtual bool can_overflow(const Type* t1, const Type* t2) const = 0;+
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};+
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+
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+
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class OverflowLNode : public OverflowNode {+
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public:+
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  typedef TypeLong TypeClass;+
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+
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  OverflowLNode(Node* in1, Node* in2) : OverflowNode(in1, in2) {}+
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  virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);+
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  virtual const Type* Value(PhaseGVN* phase) const;+
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+
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  virtual bool will_overflow(jlong v1, jlong v2) const = 0;+
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  virtual bool can_overflow(const Type* t1, const Type* t2) const = 0;+
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};+
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+
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class OverflowAddINode : public OverflowINode {+
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public:+
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  typedef AddINode MathOp;+
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+
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  OverflowAddINode(Node* in1, Node* in2) : OverflowINode(in1, in2) {}+
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  virtual int Opcode() const;+
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+
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  virtual bool will_overflow(jint v1, jint v2) const;+
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  virtual bool can_overflow(const Type* t1, const Type* t2) const;+
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};+
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+
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class OverflowSubINode : public OverflowINode {+
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public:+
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  typedef SubINode MathOp;+
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+
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  OverflowSubINode(Node* in1, Node* in2) : OverflowINode(in1, in2) {}+
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  virtual int Opcode() const;+
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+
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  virtual bool will_overflow(jint v1, jint v2) const;+
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  virtual bool can_overflow(const Type* t1, const Type* t2) const;+
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};+
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+
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class OverflowMulINode : public OverflowINode {+
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public:+
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  typedef MulINode MathOp;+
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+
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  OverflowMulINode(Node* in1, Node* in2) : OverflowINode(in1, in2) {}+
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  virtual int Opcode() const;+
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+
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  virtual bool will_overflow(jint v1, jint v2) const;+
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  virtual bool can_overflow(const Type* t1, const Type* t2) const;+
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};+
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+
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class OverflowAddLNode : public OverflowLNode {+
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public:+
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  typedef AddLNode MathOp;+
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+
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  OverflowAddLNode(Node* in1, Node* in2) : OverflowLNode(in1, in2) {}+
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  virtual int Opcode() const;+
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+
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  virtual bool will_overflow(jlong v1, jlong v2) const;+
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  virtual bool can_overflow(const Type* t1, const Type* t2) const;+
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};+
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+
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class OverflowSubLNode : public OverflowLNode {+
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public:+
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  typedef SubLNode MathOp;+
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+
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  OverflowSubLNode(Node* in1, Node* in2) : OverflowLNode(in1, in2) {}+
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  virtual int Opcode() const;+
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+
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  virtual bool will_overflow(jlong v1, jlong v2) const;+
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  virtual bool can_overflow(const Type* t1, const Type* t2) const;+
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};+
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+
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class OverflowMulLNode : public OverflowLNode {+
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public:+
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  typedef MulLNode MathOp;+
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+
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  OverflowMulLNode(Node* in1, Node* in2) : OverflowLNode(in1, in2) {}+
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  virtual int Opcode() const;+
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+
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  virtual bool will_overflow(jlong v1, jlong v2) const;+
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  virtual bool can_overflow(const Type* t1, const Type* t2) const;+
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};+
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+
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#endif+
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+
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