1 /*
2 * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 class Matcher;
26 class ProjNode;
27
28 //------------------------------MultiNode--------------------------------------
29 // This class defines a MultiNode, a Node which produces many values. The
30 // values are wrapped up in a tuple Type, i.e. a TypeTuple.
31 class MultiNode : public Node {
32 public:
33 MultiNode( uint required ) : Node(required) {
34 init_class_id(Class_Multi);
35 }
36 virtual int Opcode() const;
37 virtual const Type *bottom_type() const = 0;
38 virtual bool is_CFG() const { return true; }
39 virtual uint hash() const { return NO_HASH; } // CFG nodes do not hash
40 virtual bool depends_only_on_test() const { return false; }
41 virtual const RegMask &out_RegMask() const;
42 virtual Node *match( const ProjNode *proj, const Matcher *m );
43 virtual uint ideal_reg() const { return NotAMachineReg; }
44 ProjNode* proj_out(uint which_proj) const; // Get a named projection
65 if (con != TypeFunc::Memory || src->is_Start())
66 init_flags(Flag_is_dead_loop_safe);
67 debug_only(check_con());
68 }
69 const uint _con; // The field in the tuple we are projecting
70 const bool _is_io_use; // Used to distinguish between the projections
71 // used on the control and io paths from a macro node
72 virtual int Opcode() const;
73 virtual bool is_CFG() const;
74 virtual bool depends_only_on_test() const { return false; }
75 virtual const Type *bottom_type() const;
76 virtual const TypePtr *adr_type() const;
77 virtual bool pinned() const;
78 virtual const Type *Value( PhaseTransform *phase ) const;
79 virtual uint ideal_reg() const;
80 virtual const RegMask &out_RegMask() const;
81 #ifndef PRODUCT
82 virtual void dump_spec(outputStream *st) const;
83 #endif
84 };
|
1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_OPTO_MULTNODE_HPP
26 #define SHARE_VM_OPTO_MULTNODE_HPP
27
28 #include "opto/node.hpp"
29
30 class Matcher;
31 class ProjNode;
32
33 //------------------------------MultiNode--------------------------------------
34 // This class defines a MultiNode, a Node which produces many values. The
35 // values are wrapped up in a tuple Type, i.e. a TypeTuple.
36 class MultiNode : public Node {
37 public:
38 MultiNode( uint required ) : Node(required) {
39 init_class_id(Class_Multi);
40 }
41 virtual int Opcode() const;
42 virtual const Type *bottom_type() const = 0;
43 virtual bool is_CFG() const { return true; }
44 virtual uint hash() const { return NO_HASH; } // CFG nodes do not hash
45 virtual bool depends_only_on_test() const { return false; }
46 virtual const RegMask &out_RegMask() const;
47 virtual Node *match( const ProjNode *proj, const Matcher *m );
48 virtual uint ideal_reg() const { return NotAMachineReg; }
49 ProjNode* proj_out(uint which_proj) const; // Get a named projection
70 if (con != TypeFunc::Memory || src->is_Start())
71 init_flags(Flag_is_dead_loop_safe);
72 debug_only(check_con());
73 }
74 const uint _con; // The field in the tuple we are projecting
75 const bool _is_io_use; // Used to distinguish between the projections
76 // used on the control and io paths from a macro node
77 virtual int Opcode() const;
78 virtual bool is_CFG() const;
79 virtual bool depends_only_on_test() const { return false; }
80 virtual const Type *bottom_type() const;
81 virtual const TypePtr *adr_type() const;
82 virtual bool pinned() const;
83 virtual const Type *Value( PhaseTransform *phase ) const;
84 virtual uint ideal_reg() const;
85 virtual const RegMask &out_RegMask() const;
86 #ifndef PRODUCT
87 virtual void dump_spec(outputStream *st) const;
88 #endif
89 };
90
91 #endif // SHARE_VM_OPTO_MULTNODE_HPP
|