--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/opto/movenode.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,156 @@
+/*
+ * 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
+