Mercurial > hg > graal-compiler
view graal/com.oracle.graal.cfg/src/com/oracle/graal/cfg/Loop.java @ 15157:f4e31f06b019
Create com.oracle.graal.cfg project and move CFG related files.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Wed, 16 Apr 2014 17:57:11 +0200 |
parents | graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/Loop.java@e17fe8c1287d |
children |
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/* * Copyright (c) 2012, 2012, 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. */ package com.oracle.graal.cfg; import java.util.*; public abstract class Loop<T extends AbstractBlock<T>> { public final Loop<T> parent; public final List<Loop<T>> children; public final int depth; public final int index; public final T header; public final List<T> blocks; public final List<T> exits; protected Loop(Loop<T> parent, int index, T header) { this.parent = parent; if (parent != null) { this.depth = parent.depth + 1; parent.children.add(this); } else { this.depth = 1; } this.index = index; this.header = header; this.blocks = new ArrayList<>(); this.children = new ArrayList<>(); this.exits = new ArrayList<>(); } public abstract long numBackedges(); @Override public String toString() { return "loop " + index + " depth " + depth + (parent != null ? " outer " + parent.index : ""); } }