Mercurial > hg > graal-compiler
view src/share/vm/opto/mathexactnode.hpp @ 21696:ca140f8c35be
Empty pointer stamps are also non-null.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 03 Jun 2015 14:08:29 +0200 |
parents | 52b4284cb496 |
children |
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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