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/*
* Copyright (c) 2013, 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_MATHEXACTNODE_HPP
#define SHARE_VM_OPTO_MATHEXACTNODE_HPP
#include "opto/multnode.hpp"
#include "opto/node.hpp"
#include "opto/addnode.hpp"
#include "opto/subnode.hpp"
#include "opto/type.hpp"
class PhaseGVN;
class PhaseTransform;
class OverflowNode : public CmpNode {
public:
OverflowNode(Node* in1, Node* in2) : CmpNode(in1, in2) {}
virtual uint ideal_reg() const { return Op_RegFlags; }
virtual const Type* sub(const Type* t1, const Type* t2) const;
};
class OverflowINode : public OverflowNode {
public:
typedef TypeInt TypeClass;
OverflowINode(Node* in1, Node* in2) : OverflowNode(in1, in2) {}
virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
virtual const Type* Value(PhaseTransform* phase) const;
virtual bool will_overflow(jint v1, jint v2) const = 0;
virtual bool can_overflow(const Type* t1, const Type* t2) const = 0;
};
class OverflowLNode : public OverflowNode {
public:
typedef TypeLong TypeClass;
OverflowLNode(Node* in1, Node* in2) : OverflowNode(in1, in2) {}
virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
virtual const Type* Value(PhaseTransform* phase) const;
virtual bool will_overflow(jlong v1, jlong v2) const = 0;
virtual bool can_overflow(const Type* t1, const Type* t2) const = 0;
};
class OverflowAddINode : public OverflowINode {
public:
typedef AddINode MathOp;
OverflowAddINode(Node* in1, Node* in2) : OverflowINode(in1, in2) {}
virtual int Opcode() const;
virtual bool will_overflow(jint v1, jint v2) const;
virtual bool can_overflow(const Type* t1, const Type* t2) const;
};
class OverflowSubINode : public OverflowINode {
public:
typedef SubINode MathOp;
OverflowSubINode(Node* in1, Node* in2) : OverflowINode(in1, in2) {}
virtual int Opcode() const;
virtual bool will_overflow(jint v1, jint v2) const;
virtual bool can_overflow(const Type* t1, const Type* t2) const;
};
class OverflowMulINode : public OverflowINode {
public:
typedef MulINode MathOp;
OverflowMulINode(Node* in1, Node* in2) : OverflowINode(in1, in2) {}
virtual int Opcode() const;
virtual bool will_overflow(jint v1, jint v2) const;
virtual bool can_overflow(const Type* t1, const Type* t2) const;
};
class OverflowAddLNode : public OverflowLNode {
public:
typedef AddLNode MathOp;
OverflowAddLNode(Node* in1, Node* in2) : OverflowLNode(in1, in2) {}
virtual int Opcode() const;
virtual bool will_overflow(jlong v1, jlong v2) const;
virtual bool can_overflow(const Type* t1, const Type* t2) const;
};
class OverflowSubLNode : public OverflowLNode {
public:
typedef SubLNode MathOp;
OverflowSubLNode(Node* in1, Node* in2) : OverflowLNode(in1, in2) {}
virtual int Opcode() const;
virtual bool will_overflow(jlong v1, jlong v2) const;
virtual bool can_overflow(const Type* t1, const Type* t2) const;
};
class OverflowMulLNode : public OverflowLNode {
public:
typedef MulLNode MathOp;
OverflowMulLNode(Node* in1, Node* in2) : OverflowLNode(in1, in2) {}
virtual int Opcode() const;
virtual bool will_overflow(jlong v1, jlong v2) const;
virtual bool can_overflow(const Type* t1, const Type* t2) const;
};
#endif
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