/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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
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#ifndef SHARE_VM_OPTO_MULTNODE_HPP
#define SHARE_VM_OPTO_MULTNODE_HPP
class Matcher;
class ProjNode;
//------------------------------MultiNode--------------------------------------
// This class defines a MultiNode, a Node which produces many values. The
// values are wrapped up in a tuple Type, i.e. a TypeTuple.
public:
}
virtual int Opcode() const;
virtual const Type *bottom_type() const = 0;
virtual bool is_CFG() const { return true; }
virtual bool depends_only_on_test() const { return false; }
virtual const RegMask &out_RegMask() const;
};
//------------------------------ProjNode---------------------------------------
// This class defines a Projection node. Projections project a single element
// out of a tuple (or Signature) type. Only MultiNodes produce TypeTuple
// results.
protected:
void check_con() const; // Called from constructor.
public:
{
// Optimistic setting. Need additional checks in Node::is_dead_loop_safe().
debug_only(check_con());
}
// used on the control and io paths from a macro node
virtual int Opcode() const;
virtual bool is_CFG() const;
virtual bool depends_only_on_test() const { return false; }
virtual const Type *bottom_type() const;
virtual bool pinned() const;
virtual const RegMask &out_RegMask() const;
#ifndef PRODUCT
#endif
};
#endif // SHARE_VM_OPTO_MULTNODE_HPP