| /* |
| * Copyright (c) 2015, 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 org.graalvm.compiler.phases.common; |
| |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.memory.address.AddressNode; |
| import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode; |
| import org.graalvm.compiler.nodes.memory.address.RawAddressNode; |
| import org.graalvm.compiler.nodes.util.GraphUtil; |
| import org.graalvm.compiler.phases.Phase; |
| |
| public class AddressLoweringPhase extends Phase { |
| |
| public abstract static class AddressLowering { |
| |
| public abstract AddressNode lower(ValueNode address); |
| |
| public abstract AddressNode lower(ValueNode base, ValueNode offset); |
| } |
| |
| private final AddressLowering lowering; |
| |
| public AddressLoweringPhase(AddressLowering lowering) { |
| this.lowering = lowering; |
| assert lowering != null; |
| } |
| |
| @Override |
| protected void run(StructuredGraph graph) { |
| for (Node node : graph.getNodes()) { |
| AddressNode lowered; |
| if (node instanceof RawAddressNode) { |
| RawAddressNode address = (RawAddressNode) node; |
| lowered = lowering.lower(address.getAddress()); |
| } else if (node instanceof OffsetAddressNode) { |
| OffsetAddressNode address = (OffsetAddressNode) node; |
| lowered = lowering.lower(address.getBase(), address.getOffset()); |
| } else { |
| continue; |
| } |
| node.replaceAtUsages(lowered); |
| GraphUtil.killWithUnusedFloatingInputs(node); |
| } |
| } |
| } |