truffle: graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/ir/LoopBegin.java annotate

annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/ir/LoopBegin.java @ 2951:0c0e407faa39

another fix to debug info (on-stack parameters), DCE removes unnecessary merges and LoopBegins whose LoopEnd went away

author	Lukas Stadler <lukas.stadler@jku.at>
date	Tue, 14 Jun 2011 16:47:31 +0200
parents	d90bf514d647
children	183389909fe3

rev	line source
2799 e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	1 /*
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	4 *
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	7 * published by the Free Software Foundation.
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	8 *
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	13 * accompanied this code).
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	14 *
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	18 *
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	21 * questions.
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	22 */
2874 d90bf514d647 Renamed packages. Thomas Wuerthinger <thomas@wuerthinger.net> parents: 2872 diff changeset	23 package com.oracle.max.graal.compiler.ir;
2799 e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	24
2874 d90bf514d647 Renamed packages. Thomas Wuerthinger <thomas@wuerthinger.net> parents: 2872 diff changeset	25 import com.oracle.max.graal.compiler.debug.*;
d90bf514d647 Renamed packages. Thomas Wuerthinger <thomas@wuerthinger.net> parents: 2872 diff changeset	26 import com.oracle.max.graal.graph.*;
2799 e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	27
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	28 public class LoopBegin extends Merge {
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	29
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	30 private static final int INPUT_COUNT = 0;
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	31 private static final int SUCCESSOR_COUNT = 0;
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	32
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	33 public LoopBegin(Graph graph) {
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	34 super(INPUT_COUNT, SUCCESSOR_COUNT, graph);
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	35 }
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	36
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	37 public LoopEnd loopEnd() {
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	38 for (Node usage : usages()) {
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	39 if (usage instanceof LoopEnd) {
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	40 LoopEnd end = (LoopEnd) usage;
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	41 if (end.loopBegin() == this) {
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	42 return end;
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	43 }
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	44 }
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	45 }
2951 0c0e407faa39 another fix to debug info (on-stack parameters), DCE removes unnecessary merges and LoopBegins whose LoopEnd went away Lukas Stadler <lukas.stadler@jku.at> parents: 2874 diff changeset	46 assert false : "LoopBegin should always have a LoopEnd";
2799 e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	47 return null;
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	48 }
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	49
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	50 @Override
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	51 public void accept(ValueVisitor v) {
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	52 v.visitLoopBegin(this);
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	53 }
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	54
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	55 @Override
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	56 public void print(LogStream out) {
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	57 out.print("loopBegin");
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	58 }
e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	59
2827 bd17ac598c6e Graph cloning, initial version (not completely working) Lukas Stadler <lukas.stadler@jku.at> parents: 2799 diff changeset	60 @Override
2842 7596ae867a7b basic inlining passes all tests, including optimistic inlining Lukas Stadler <lukas.stadler@jku.at> parents: 2827 diff changeset	61 public String shortName() {
7596ae867a7b basic inlining passes all tests, including optimistic inlining Lukas Stadler <lukas.stadler@jku.at> parents: 2827 diff changeset	62 return "LoopBegin";
7596ae867a7b basic inlining passes all tests, including optimistic inlining Lukas Stadler <lukas.stadler@jku.at> parents: 2827 diff changeset	63 }
7596ae867a7b basic inlining passes all tests, including optimistic inlining Lukas Stadler <lukas.stadler@jku.at> parents: 2827 diff changeset	64
7596ae867a7b basic inlining passes all tests, including optimistic inlining Lukas Stadler <lukas.stadler@jku.at> parents: 2827 diff changeset	65 @Override
2827 bd17ac598c6e Graph cloning, initial version (not completely working) Lukas Stadler <lukas.stadler@jku.at> parents: 2799 diff changeset	66 public Node copy(Graph into) {
bd17ac598c6e Graph cloning, initial version (not completely working) Lukas Stadler <lukas.stadler@jku.at> parents: 2799 diff changeset	67 LoopBegin x = new LoopBegin(into);
bd17ac598c6e Graph cloning, initial version (not completely working) Lukas Stadler <lukas.stadler@jku.at> parents: 2799 diff changeset	68 return x;
bd17ac598c6e Graph cloning, initial version (not completely working) Lukas Stadler <lukas.stadler@jku.at> parents: 2799 diff changeset	69 }
2799 e1dad0edd57a first part of loop reworking Lukas Stadler <lukas.stadler@jku.at> parents: diff changeset	70 }

Mercurial > hg > truffle

annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/ir/LoopBegin.java @ 2951:0c0e407faa39