1 /*
   2  * Copyright (c) 2016, 2018, 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.hotspot.nodes.aot;
  26 
  27 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN;
  28 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_16;
  29 
  30 import org.graalvm.compiler.graph.Node;
  31 import org.graalvm.compiler.graph.NodeClass;
  32 import org.graalvm.compiler.graph.spi.Canonicalizable;
  33 import org.graalvm.compiler.graph.spi.CanonicalizerTool;
  34 import org.graalvm.compiler.hotspot.HotSpotLIRGenerator;
  35 import org.graalvm.compiler.hotspot.nodes.DeoptimizingStubCall;
  36 import org.graalvm.compiler.hotspot.nodes.type.MethodCountersPointerStamp;
  37 import org.graalvm.compiler.hotspot.word.KlassPointer;
  38 import org.graalvm.compiler.hotspot.word.MethodCountersPointer;
  39 import org.graalvm.compiler.hotspot.word.MethodPointer;
  40 import org.graalvm.compiler.lir.LIRFrameState;
  41 import org.graalvm.compiler.nodeinfo.NodeInfo;
  42 import org.graalvm.compiler.nodes.ValueNode;
  43 import org.graalvm.compiler.nodes.spi.LIRLowerable;
  44 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
  45 import org.graalvm.compiler.nodes.util.GraphUtil;
  46 
  47 import jdk.vm.ci.meta.Constant;
  48 import jdk.vm.ci.meta.Value;
  49 
  50 /**
  51  * A call to the VM via a regular stub.
  52  */
  53 @NodeInfo(cycles = CYCLES_UNKNOWN, size = SIZE_16)
  54 public class ResolveMethodAndLoadCountersStubCall extends DeoptimizingStubCall implements Canonicalizable, LIRLowerable {
  55     public static final NodeClass<ResolveMethodAndLoadCountersStubCall> TYPE = NodeClass.create(ResolveMethodAndLoadCountersStubCall.class);
  56 
  57     @OptionalInput protected ValueNode method;
  58     @Input protected ValueNode klassHint;
  59     @Input protected ValueNode methodDescription;
  60     protected Constant methodConstant;
  61 
  62     public ResolveMethodAndLoadCountersStubCall(ValueNode method, ValueNode klassHint, ValueNode methodDescription) {
  63         super(TYPE, MethodCountersPointerStamp.methodCountersNonNull());
  64         this.klassHint = klassHint;
  65         this.method = method;
  66         this.methodDescription = methodDescription;
  67     }
  68 
  69     @NodeIntrinsic
  70     public static native MethodCountersPointer resolveMethodAndLoadCounters(MethodPointer method, KlassPointer klassHint, Object methodDescription);
  71 
  72     @Override
  73     public Node canonical(CanonicalizerTool tool) {
  74         if (method != null) {
  75             methodConstant = GraphUtil.foldIfConstantAndRemove(this, method);
  76         }
  77         return this;
  78     }
  79 
  80     @Override
  81     public void generate(NodeLIRBuilderTool gen) {
  82         assert methodConstant != null : "Expected method to fold: " + method;
  83 
  84         Value methodDescriptionValue = gen.operand(methodDescription);
  85         Value klassHintValue = gen.operand(klassHint);
  86         LIRFrameState fs = gen.state(this);
  87         assert fs != null : "The stateAfter is null";
  88 
  89         Value result = ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitResolveMethodAndLoadCounters(methodConstant, klassHintValue, methodDescriptionValue, fs);
  90 
  91         gen.setResult(this, result);
  92     }
  93 
  94 }