1 /* 2 * Copyright (c) 2013, 2014, 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 package org.graalvm.compiler.phases.common.inlining.info; 24 25 import java.util.Collection; 26 27 import org.graalvm.compiler.graph.Node; 28 import org.graalvm.compiler.nodes.Invoke; 29 import org.graalvm.compiler.phases.common.inlining.info.elem.Inlineable; 30 import org.graalvm.compiler.phases.util.Providers; 31 32 import jdk.vm.ci.meta.ResolvedJavaMethod; 33 34 /** 35 * Represents an inlining opportunity where the compiler can statically determine a monomorphic 36 * target method and therefore is able to determine the called method exactly. 37 */ 38 public class ExactInlineInfo extends AbstractInlineInfo { 39 40 protected final ResolvedJavaMethod concrete; 41 private Inlineable inlineableElement; 42 private boolean suppressNullCheck; 43 44 public ExactInlineInfo(Invoke invoke, ResolvedJavaMethod concrete) { 45 super(invoke); 46 this.concrete = concrete; 47 assert concrete != null; 48 } 49 50 public void suppressNullCheck() { 51 suppressNullCheck = true; 52 } 53 54 @Override 55 public Collection<Node> inline(Providers providers) { 56 return inline(invoke, concrete, inlineableElement, !suppressNullCheck); 57 } 58 59 @Override 60 public void tryToDevirtualizeInvoke(Providers providers) { 61 // nothing todo, can already be bound statically 62 } 63 64 @Override 65 public int numberOfMethods() { 66 return 1; 67 } 68 69 @Override 70 public ResolvedJavaMethod methodAt(int index) { 71 assert index == 0; 72 return concrete; 73 } 74 75 @Override 76 public double probabilityAt(int index) { 77 assert index == 0; 78 return 1.0; 79 } 80 81 @Override 82 public double relevanceAt(int index) { 83 assert index == 0; 84 return 1.0; 85 } 86 87 @Override 88 public String toString() { 89 return "exact " + concrete.format("%H.%n(%p):%r"); 90 } 91 92 @Override 93 public Inlineable inlineableElementAt(int index) { 94 assert index == 0; 95 return inlineableElement; 96 } 97 98 @Override 99 public void setInlinableElement(int index, Inlineable inlineableElement) { 100 assert index == 0; 101 this.inlineableElement = inlineableElement; 102 } 103 104 @Override 105 public boolean shouldInline() { 106 return concrete.shouldBeInlined(); 107 } 108 }