| /* |
| * Copyright (c) 2014, 2015, 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_MOVENODE_HPP |
| #define SHARE_VM_OPTO_MOVENODE_HPP |
| |
| #include "opto/node.hpp" |
| |
| //------------------------------CMoveNode-------------------------------------- |
| // Conditional move |
| class CMoveNode : public TypeNode { |
| public: |
| enum { Control, // When is it safe to do this cmove? |
| Condition, // Condition controlling the cmove |
| IfFalse, // Value if condition is false |
| IfTrue }; // Value if condition is true |
| CMoveNode( Node *bol, Node *left, Node *right, const Type *t ) : TypeNode(t,4) |
| { |
| init_class_id(Class_CMove); |
| // all inputs are nullified in Node::Node(int) |
| // init_req(Control,NULL); |
| init_req(Condition,bol); |
| init_req(IfFalse,left); |
| init_req(IfTrue,right); |
| } |
| virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); |
| virtual const Type* Value(PhaseGVN* phase) const; |
| virtual Node* Identity(PhaseGVN* phase); |
| static CMoveNode *make(Node *c, Node *bol, Node *left, Node *right, const Type *t); |
| // Helper function to spot cmove graph shapes |
| static Node *is_cmove_id( PhaseTransform *phase, Node *cmp, Node *t, Node *f, BoolNode *b ); |
| }; |
| |
| //------------------------------CMoveDNode------------------------------------- |
| class CMoveDNode : public CMoveNode { |
| public: |
| CMoveDNode( Node *bol, Node *left, Node *right, const Type* t) : CMoveNode(bol,left,right,t){} |
| virtual int Opcode() const; |
| virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); |
| }; |
| |
| //------------------------------CMoveFNode------------------------------------- |
| class CMoveFNode : public CMoveNode { |
| public: |
| CMoveFNode( Node *bol, Node *left, Node *right, const Type* t ) : CMoveNode(bol,left,right,t) {} |
| virtual int Opcode() const; |
| virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); |
| }; |
| |
| //------------------------------CMoveINode------------------------------------- |
| class CMoveINode : public CMoveNode { |
| public: |
| CMoveINode( Node *bol, Node *left, Node *right, const TypeInt *ti ) : CMoveNode(bol,left,right,ti){} |
| virtual int Opcode() const; |
| virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); |
| }; |
| |
| //------------------------------CMoveLNode------------------------------------- |
| class CMoveLNode : public CMoveNode { |
| public: |
| CMoveLNode(Node *bol, Node *left, Node *right, const TypeLong *tl ) : CMoveNode(bol,left,right,tl){} |
| virtual int Opcode() const; |
| }; |
| |
| //------------------------------CMovePNode------------------------------------- |
| class CMovePNode : public CMoveNode { |
| public: |
| CMovePNode( Node *c, Node *bol, Node *left, Node *right, const TypePtr* t ) : CMoveNode(bol,left,right,t) { init_req(Control,c); } |
| virtual int Opcode() const; |
| }; |
| |
| //------------------------------CMoveNNode------------------------------------- |
| class CMoveNNode : public CMoveNode { |
| public: |
| CMoveNNode( Node *c, Node *bol, Node *left, Node *right, const Type* t ) : CMoveNode(bol,left,right,t) { init_req(Control,c); } |
| virtual int Opcode() const; |
| }; |
| |
| // |
| class MoveI2FNode : public Node { |
| public: |
| MoveI2FNode( Node *value ) : Node(0,value) {} |
| virtual int Opcode() const; |
| virtual const Type *bottom_type() const { return Type::FLOAT; } |
| virtual uint ideal_reg() const { return Op_RegF; } |
| virtual const Type* Value(PhaseGVN* phase) const; |
| }; |
| |
| class MoveL2DNode : public Node { |
| public: |
| MoveL2DNode( Node *value ) : Node(0,value) {} |
| virtual int Opcode() const; |
| virtual const Type *bottom_type() const { return Type::DOUBLE; } |
| virtual uint ideal_reg() const { return Op_RegD; } |
| virtual const Type* Value(PhaseGVN* phase) const; |
| }; |
| |
| class MoveF2INode : public Node { |
| public: |
| MoveF2INode( Node *value ) : Node(0,value) {} |
| virtual int Opcode() const; |
| virtual const Type *bottom_type() const { return TypeInt::INT; } |
| virtual uint ideal_reg() const { return Op_RegI; } |
| virtual const Type* Value(PhaseGVN* phase) const; |
| }; |
| |
| class MoveD2LNode : public Node { |
| public: |
| MoveD2LNode( Node *value ) : Node(0,value) {} |
| virtual int Opcode() const; |
| virtual const Type *bottom_type() const { return TypeLong::LONG; } |
| virtual uint ideal_reg() const { return Op_RegL; } |
| virtual const Type* Value(PhaseGVN* phase) const; |
| }; |
| |
| //------------------------------BinaryNode------------------------------------- |
| // Place holder for the 2 conditional inputs to a CMove. CMove needs 4 |
| // inputs: the Bool (for the lt/gt/eq/ne bits), the flags (result of some |
| // compare), and the 2 values to select between. The Matcher requires a |
| // binary tree so we break it down like this: |
| // (CMove (Binary bol cmp) (Binary src1 src2)) |
| class BinaryNode : public Node { |
| public: |
| BinaryNode( Node *n1, Node *n2 ) : Node(0,n1,n2) { } |
| virtual int Opcode() const; |
| virtual uint ideal_reg() const { return 0; } |
| |
| #ifndef PRODUCT |
| virtual void related(GrowableArray<Node*> *in_rel, GrowableArray<Node*> *out_rel, bool compact) const; |
| #endif |
| }; |
| |
| |
| #endif // SHARE_VM_OPTO_MOVENODE_HPP |
| |