Mercurial > hg > graal-compiler
view src/share/vm/opto/rootnode.hpp @ 20257:7426d8d76305
8034761: Remove the do_code_roots parameter from process_strong_roots
Reviewed-by: tschatzl, mgerdin, jmasa
author | stefank |
---|---|
date | Thu, 13 Feb 2014 17:44:39 +0100 |
parents | f95d63e2154a |
children |
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/* * Copyright (c) 1997, 2010, 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_ROOTNODE_HPP #define SHARE_VM_OPTO_ROOTNODE_HPP #include "opto/loopnode.hpp" //------------------------------RootNode--------------------------------------- // The one-and-only before-all-else and after-all-else RootNode. The RootNode // represents what happens if the user runs the whole program repeatedly. The // RootNode produces the initial values of I/O and memory for the program or // procedure start. class RootNode : public LoopNode { public: RootNode( ) : LoopNode(0,0) { init_class_id(Class_Root); del_req(2); del_req(1); } virtual int Opcode() const; virtual const Node *is_block_proj() const { return this; } virtual const Type *bottom_type() const { return Type::BOTTOM; } virtual Node *Identity( PhaseTransform *phase ) { return this; } virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); virtual const Type *Value( PhaseTransform *phase ) const { return Type::BOTTOM; } }; //------------------------------HaltNode--------------------------------------- // Throw an exception & die class HaltNode : public Node { public: HaltNode( Node *ctrl, Node *frameptr ); virtual int Opcode() const; virtual bool pinned() const { return true; }; virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); virtual const Type *Value( PhaseTransform *phase ) const; virtual const Type *bottom_type() const; virtual bool is_CFG() const { return true; } virtual uint hash() const { return NO_HASH; } // CFG nodes do not hash virtual bool depends_only_on_test() const { return false; } virtual const Node *is_block_proj() const { return this; } virtual const RegMask &out_RegMask() const; virtual uint ideal_reg() const { return NotAMachineReg; } virtual uint match_edge(uint idx) const { return 0; } }; #endif // SHARE_VM_OPTO_ROOTNODE_HPP