1 /*
   2  * Copyright (c) 2013, 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.ArrayList;
  26 import java.util.Collection;
  27 import java.util.List;
  28 import java.util.Map;
  29 
  30 import org.graalvm.compiler.debug.Debug;
  31 import org.graalvm.compiler.debug.internal.method.MethodMetricsInlineeScopeInfo;
  32 import org.graalvm.compiler.graph.Node;
  33 import org.graalvm.compiler.nodes.Invoke;
  34 import org.graalvm.compiler.nodes.ParameterNode;
  35 import org.graalvm.compiler.nodes.StructuredGraph;
  36 import org.graalvm.compiler.phases.common.CanonicalizerPhase;
  37 import org.graalvm.compiler.phases.common.inlining.InliningUtil;
  38 import org.graalvm.compiler.phases.common.inlining.info.elem.Inlineable;
  39 import org.graalvm.compiler.phases.common.inlining.info.elem.InlineableGraph;
  40 import org.graalvm.compiler.phases.tiers.HighTierContext;
  41 
  42 import jdk.vm.ci.meta.ResolvedJavaMethod;
  43 
  44 public abstract class AbstractInlineInfo implements InlineInfo {
  45 
  46     protected final Invoke invoke;
  47 
  48     public AbstractInlineInfo(Invoke invoke) {
  49         this.invoke = invoke;
  50     }
  51 
  52     @Override
  53     public StructuredGraph graph() {
  54         return invoke.asNode().graph();
  55     }
  56 
  57     @Override
  58     public Invoke invoke() {
  59         return invoke;
  60     }
  61 
  62     protected static Collection<Node> inline(Invoke invoke, ResolvedJavaMethod concrete, Inlineable inlineable, boolean receiverNullCheck) {
  63         List<Node> canonicalizeNodes = new ArrayList<>();
  64         assert inlineable instanceof InlineableGraph;
  65         StructuredGraph calleeGraph = ((InlineableGraph) inlineable).getGraph();
  66         Map<Node, Node> duplicateMap = InliningUtil.inline(invoke, calleeGraph, receiverNullCheck, canonicalizeNodes, concrete);
  67         getInlinedParameterUsages(canonicalizeNodes, calleeGraph, duplicateMap);
  68         return canonicalizeNodes;
  69     }
  70 
  71     public static void getInlinedParameterUsages(Collection<Node> parameterUsages, StructuredGraph calleeGraph, Map<Node, Node> duplicateMap) {
  72         for (ParameterNode parameter : calleeGraph.getNodes(ParameterNode.TYPE)) {
  73             for (Node usage : parameter.usages()) {
  74                 Node node = duplicateMap.get(usage);
  75                 if (node != null && node.isAlive()) {
  76                     parameterUsages.add(node);
  77                 }
  78             }
  79         }
  80     }
  81 
  82     @Override
  83     @SuppressWarnings("try")
  84     public final void populateInlinableElements(HighTierContext context, StructuredGraph caller, CanonicalizerPhase canonicalizer) {
  85         for (int i = 0; i < numberOfMethods(); i++) {
  86             try (Debug.Scope s = Debug.methodMetricsScope("InlineEnhancement", MethodMetricsInlineeScopeInfo.create(), false)) {
  87                 Inlineable elem = Inlineable.getInlineableElement(methodAt(i), invoke, context, canonicalizer);
  88                 setInlinableElement(i, elem);
  89             }
  90         }
  91     }
  92 
  93     @Override
  94     public final int determineNodeCount() {
  95         int nodes = 0;
  96         for (int i = 0; i < numberOfMethods(); i++) {
  97             Inlineable elem = inlineableElementAt(i);
  98             if (elem != null) {
  99                 nodes += elem.getNodeCount();
 100             }
 101         }
 102         return nodes;
 103     }
 104 }