Mercurial > hg > truffle
view graal/GraalCompiler/src/com/sun/c1x/ir/Base.java @ 2634:4dd0573f510b
FrameState fixes.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Wed, 11 May 2011 10:52:37 +0200 |
parents | 0c6564c254af |
children | b2c1e959be46 |
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/* * Copyright (c) 2009, 2011, 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.sun.c1x.ir; import com.oracle.graal.graph.*; import com.sun.c1x.debug.*; import com.sun.cri.ci.*; /** * The {@code Base} instruction represents the end of the entry block of the procedure that has * both the standard entry and the OSR entry as successors. */ public final class Base extends BlockEnd { private static final int INPUT_COUNT = 0; private static final int SUCCESSOR_COUNT = 0; /** * Constructs a new Base instruction. * @param standardEntry the standard entrypoint block * @param graph */ public Base(BlockBegin standardEntry, Graph graph) { super(CiKind.Illegal, null, false, 1, INPUT_COUNT, SUCCESSOR_COUNT, graph); assert standardEntry.isStandardEntry(); setBlockSuccessor(0, standardEntry); } /** * Gets the standard entrypoint block. * @return the standard entrypoint block */ public BlockBegin standardEntry() { return defaultSuccessor(); } /** * Gets the OSR entrypoint block, if it exists. * @return the OSR entrypoint bock, if it exists; {@code null} otherwise */ public BlockBegin osrEntry() { return blockSuccessorCount() < 2 ? null : blockSuccessor(0); } @Override public void accept(ValueVisitor v) { v.visitBase(this); } @Override public void print(LogStream out) { out.print("std entry B").print(standardEntry().blockID); if (blockSuccessors().size() > 1) { out.print(" osr entry B").print(osrEntry().blockID); } } }