Mercurial > hg > truffle
view graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/phases/LoweringPhase.java @ 2970:fe44e684f1cb
Removed all usages of "setAndClear" => big code simplification.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Wed, 15 Jun 2011 17:09:25 +0200 |
parents | e86e83c5adbc |
children | 0ef7a8219b45 |
line wrap: on
line source
/* * Copyright (c) 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.oracle.max.graal.compiler.phases; import com.oracle.max.graal.compiler.ir.*; import com.oracle.max.graal.compiler.schedule.*; import com.oracle.max.graal.compiler.util.*; import com.oracle.max.graal.graph.*; public class LoweringPhase extends Phase { @Override protected void run(final Graph graph) { final IdentifyBlocksPhase s = new IdentifyBlocksPhase(false); s.apply(graph); for (Block b : s.getBlocks()) { //final Node firstNode = b.firstNode(); final LoweringTool loweringTool = new LoweringTool() { @Override public Node createStructuredBlockAnchor() { throw Util.unimplemented(); // if (!(firstNode instanceof Anchor) && !(firstNode instanceof Merge)) { // Anchor a = new Anchor(graph); // assert firstNode.predecessors().size() == 1; // Node pred = firstNode.predecessors().get(0); // int predIndex = firstNode.predecessorsIndex().get(0); // a.successors().setAndClear(Instruction.SUCCESSOR_NEXT, pred, predIndex); // pred.successors().set(predIndex, a); // return a; // } // return firstNode; } }; for (final Node n : b.getInstructions()) { if (n instanceof FixedNode) { LoweringOp op = n.lookup(LoweringOp.class); if (op != null) { Node newNode = op.lower(n, loweringTool); if (newNode != null) { n.replace(newNode); } } } } } } public interface LoweringTool { Node createStructuredBlockAnchor(); } public interface LoweringOp extends Op { Node lower(Node n, LoweringTool tool); } }