author | thartmann |
Tue, 12 Jan 2016 12:55:09 +0100 | |
changeset 35551 | 36ef3841fb34 |
parent 30300 | 4b12a5b40064 |
permissions | -rw-r--r-- |
23528 | 1 |
/* |
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* Copyright (c) 2014, 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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#ifndef SHARE_VM_OPTO_NARROWPTRNODE_HPP |
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#define SHARE_VM_OPTO_NARROWPTRNODE_HPP |
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#include "opto/node.hpp" |
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#include "opto/opcodes.hpp" |
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//------------------------------EncodeNarrowPtr-------------------------------- |
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class EncodeNarrowPtrNode : public TypeNode { |
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protected: |
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EncodeNarrowPtrNode(Node* value, const Type* type): |
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TypeNode(type, 2) { |
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init_class_id(Class_EncodeNarrowPtr); |
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init_req(0, NULL); |
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init_req(1, value); |
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} |
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public: |
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virtual uint ideal_reg() const { return Op_RegN; } |
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}; |
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//------------------------------EncodeP-------------------------------- |
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// Encodes an oop pointers into its compressed form |
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// Takes an extra argument which is the real heap base as a long which |
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// may be useful for code generation in the backend. |
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class EncodePNode : public EncodeNarrowPtrNode { |
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public: |
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EncodePNode(Node* value, const Type* type): |
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EncodeNarrowPtrNode(value, type) { |
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init_class_id(Class_EncodeP); |
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} |
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virtual int Opcode() const; |
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35551
36ef3841fb34
8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
thartmann
parents:
30300
diff
changeset
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virtual Node* Identity(PhaseGVN* phase); |
36ef3841fb34
8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
thartmann
parents:
30300
diff
changeset
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virtual const Type* Value(PhaseGVN* phase) const; |
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}; |
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//------------------------------EncodePKlass-------------------------------- |
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// Encodes a klass pointer into its compressed form |
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// Takes an extra argument which is the real heap base as a long which |
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// may be useful for code generation in the backend. |
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class EncodePKlassNode : public EncodeNarrowPtrNode { |
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public: |
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EncodePKlassNode(Node* value, const Type* type): |
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EncodeNarrowPtrNode(value, type) { |
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init_class_id(Class_EncodePKlass); |
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} |
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virtual int Opcode() const; |
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36ef3841fb34
8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
thartmann
parents:
30300
diff
changeset
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virtual Node* Identity(PhaseGVN* phase); |
36ef3841fb34
8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
thartmann
parents:
30300
diff
changeset
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virtual const Type* Value(PhaseGVN* phase) const; |
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}; |
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//------------------------------DecodeNarrowPtr-------------------------------- |
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class DecodeNarrowPtrNode : public TypeNode { |
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protected: |
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DecodeNarrowPtrNode(Node* value, const Type* type): |
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TypeNode(type, 2) { |
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init_class_id(Class_DecodeNarrowPtr); |
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init_req(0, NULL); |
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init_req(1, value); |
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} |
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public: |
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virtual uint ideal_reg() const { return Op_RegP; } |
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}; |
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//------------------------------DecodeN-------------------------------- |
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// Converts a narrow oop into a real oop ptr. |
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// Takes an extra argument which is the real heap base as a long which |
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// may be useful for code generation in the backend. |
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class DecodeNNode : public DecodeNarrowPtrNode { |
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public: |
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DecodeNNode(Node* value, const Type* type): |
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DecodeNarrowPtrNode(value, type) { |
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init_class_id(Class_DecodeN); |
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} |
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virtual int Opcode() const; |
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35551
36ef3841fb34
8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
thartmann
parents:
30300
diff
changeset
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virtual const Type* Value(PhaseGVN* phase) const; |
36ef3841fb34
8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
thartmann
parents:
30300
diff
changeset
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virtual Node* Identity(PhaseGVN* phase); |
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}; |
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//------------------------------DecodeNKlass-------------------------------- |
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// Converts a narrow klass pointer into a real klass ptr. |
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// Takes an extra argument which is the real heap base as a long which |
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// may be useful for code generation in the backend. |
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class DecodeNKlassNode : public DecodeNarrowPtrNode { |
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public: |
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DecodeNKlassNode(Node* value, const Type* type): |
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DecodeNarrowPtrNode(value, type) { |
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init_class_id(Class_DecodeNKlass); |
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} |
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virtual int Opcode() const; |
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36ef3841fb34
8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
thartmann
parents:
30300
diff
changeset
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virtual const Type* Value(PhaseGVN* phase) const; |
36ef3841fb34
8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
thartmann
parents:
30300
diff
changeset
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virtual Node* Identity(PhaseGVN* phase); |
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}; |
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#endif // SHARE_VM_OPTO_NARROWPTRNODE_HPP |
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