/*
* Copyright ( c ) 2013 , 2019 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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* 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 .
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#ifndef SHARE_OPTO_MATHEXACTNODE_HPP
#define SHARE_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(PhaseGVN* 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(PhaseGVN* 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 { return is_overflow(v1, v2); }
virtual bool can_overflow(const Type* t1, const Type* t2) const ;
static bool is_overflow(jlong v1, jlong v2);
};
#endif // SHARE_OPTO_MATHEXACTNODE_HPP
Messung V0.5 in Prozent C=80 H=92 G=86
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-11)
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