Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/MergeNode.java @ 21155:754f2b20d8bc graal-0.7
Skip invokes with a placeholder framestate in MethodCallTargetNode.simplify
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Wed, 29 Apr 2015 17:28:50 +0200 |
parents | 86909168a529 |
children | 05183a084a08 |
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/* * Copyright (c) 2009, 2015, 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.nodes; import com.oracle.graal.graph.*; import com.oracle.graal.nodeinfo.*; /** * Denotes the merging of multiple control-flow paths. */ @NodeInfo public final class MergeNode extends AbstractMergeNode { public static final NodeClass<MergeNode> TYPE = NodeClass.create(MergeNode.class); public MergeNode() { super(TYPE); } public static void removeMergeIfDegenerated(MergeNode node) { if (node.forwardEndCount() == 1 && node.hasNoUsages()) { FixedNode currentNext = node.next(); node.setNext(null); EndNode forwardEnd = node.forwardEndAt(0); forwardEnd.replaceAtPredecessor(currentNext); node.markDeleted(); forwardEnd.markDeleted(); } } @Override public boolean verify() { assertTrue(this.forwardEndCount() > 1, "Must merge more than one end."); return true; } }