1 /* 2 * Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.nodes; 26 27 import static java.lang.Character.toLowerCase; 28 29 import java.util.ArrayList; 30 import java.util.Collection; 31 32 import org.graalvm.compiler.graph.Node; 33 import org.graalvm.compiler.nodeinfo.Verbosity; 34 import org.graalvm.compiler.nodes.memory.MemoryKill; 35 36 import jdk.vm.ci.meta.JavaKind; 37 38 public class ValueNodeUtil { 39 assertKind(JavaKind kind, ValueNode x)40 public static ValueNode assertKind(JavaKind kind, ValueNode x) { 41 assert x != null && x.getStackKind() == kind : "kind=" + kind + ", value=" + x + ((x == null) ? "" : ", value.kind=" + x.getStackKind()); 42 return x; 43 } 44 shouldNotReachHere(String msg)45 public static RuntimeException shouldNotReachHere(String msg) { 46 throw new InternalError("should not reach here: " + msg); 47 } 48 shouldNotReachHere()49 public static RuntimeException shouldNotReachHere() { 50 throw new InternalError("should not reach here"); 51 } 52 assertLong(ValueNode x)53 public static ValueNode assertLong(ValueNode x) { 54 assert x != null && (x.getStackKind() == JavaKind.Long); 55 return x; 56 } 57 assertInt(ValueNode x)58 public static ValueNode assertInt(ValueNode x) { 59 assert x != null && (x.getStackKind() == JavaKind.Int); 60 return x; 61 } 62 assertFloat(ValueNode x)63 public static ValueNode assertFloat(ValueNode x) { 64 assert x != null && (x.getStackKind() == JavaKind.Float); 65 return x; 66 } 67 assertObject(ValueNode x)68 public static ValueNode assertObject(ValueNode x) { 69 assert x != null && (x.getStackKind() == JavaKind.Object); 70 return x; 71 } 72 assertDouble(ValueNode x)73 public static ValueNode assertDouble(ValueNode x) { 74 assert x != null && (x.getStackKind() == JavaKind.Double); 75 return x; 76 } 77 assertHigh(ValueNode x)78 public static void assertHigh(ValueNode x) { 79 assert x == null; 80 } 81 82 @SuppressWarnings("unchecked") filter(Iterable<Node> nodes, Class<T> clazz)83 public static <T extends Node> Collection<T> filter(Iterable<Node> nodes, Class<T> clazz) { 84 ArrayList<T> phis = new ArrayList<>(); 85 for (Node node : nodes) { 86 if (clazz.isInstance(node)) { 87 phis.add((T) node); 88 } 89 } 90 return phis; 91 } 92 93 /** 94 * Converts a given instruction to a value string. The representation of an node as a value is 95 * formed by concatenating the {@linkplain jdk.vm.ci.meta.JavaKind#getTypeChar character} 96 * denoting its {@linkplain ValueNode#getStackKind kind} and its id. For example, {@code "i13"}. 97 * 98 * @param value the instruction to convert to a value string. If {@code value == null}, then "-" 99 * is returned. 100 * @return the instruction representation as a string 101 */ valueString(ValueNode value)102 public static String valueString(ValueNode value) { 103 return (value == null) ? "-" : ("" + toLowerCase(value.getStackKind().getTypeChar()) + value.toString(Verbosity.Id)); 104 } 105 asNode(MemoryKill node)106 public static ValueNode asNode(MemoryKill node) { 107 if (node == null) { 108 return null; 109 } else { 110 return node.asNode(); 111 } 112 } 113 } 114