6db303a301
Split C2 node files into cast, convert, countbits, intrinsic, move, narrowptr and opaquenode classes Reviewed-by: kvn, morris
120 lines
4.3 KiB
C++
120 lines
4.3 KiB
C++
/*
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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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virtual Node *Ideal_DU_postCCP( PhaseCCP *ccp );
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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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virtual Node *Identity( PhaseTransform *phase );
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virtual const Type *Value( PhaseTransform *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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virtual Node *Identity( PhaseTransform *phase );
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virtual const Type *Value( PhaseTransform *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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virtual const Type *Value( PhaseTransform *phase ) const;
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virtual Node *Identity( PhaseTransform *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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virtual const Type *Value( PhaseTransform *phase ) const;
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virtual Node *Identity( PhaseTransform *phase );
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};
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#endif // SHARE_VM_OPTO_NARROWPTRNODE_HPP
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