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 import org.graalvm.compiler.word.Word;
  47 
  48 import jdk.vm.ci.meta.Constant;
  49 import jdk.vm.ci.meta.Value;
  50 
  51 /**
  52  * A call to the VM via a regular stub.
  53  */
  54 @NodeInfo(cycles = CYCLES_UNKNOWN, size = SIZE_16)
  55 public class ResolveMethodAndLoadCountersStubCall extends DeoptimizingStubCall implements Canonicalizable, LIRLowerable {
  56     public static final NodeClass<ResolveMethodAndLoadCountersStubCall> TYPE = NodeClass.create(ResolveMethodAndLoadCountersStubCall.class);
  57 
  58     @OptionalInput protected ValueNode method;
  59     @Input protected ValueNode klassHint;
  60     @Input protected ValueNode methodDescription;
  61     protected Constant methodConstant;
  62 
  63     public ResolveMethodAndLoadCountersStubCall(ValueNode method, ValueNode klassHint, ValueNode methodDescription) {
  64         super(TYPE, MethodCountersPointerStamp.methodCountersNonNull());
  65         this.klassHint = klassHint;
  66         this.method = method;
  67         this.methodDescription = methodDescription;
  68     }
  69 
  70     @NodeIntrinsic
  71     public static native MethodCountersPointer resolveMethodAndLoadCounters(MethodPointer method, KlassPointer klassHint, Word methodDescription);
  72 
  73     @Override
  74     public Node canonical(CanonicalizerTool tool) {
  75         if (method != null) {
  76             methodConstant = GraphUtil.foldIfConstantAndRemove(this, method);
  77         }
  78         return this;
  79     }
  80 
  81     @Override
  82     public void generate(NodeLIRBuilderTool gen) {
  83         assert methodConstant != null : "Expected method to fold: " + method;
  84 
  85         Value methodDescriptionValue = gen.operand(methodDescription);
  86         Value klassHintValue = gen.operand(klassHint);
  87         LIRFrameState fs = gen.state(this);
  88         assert fs != null : "The stateAfter is null";
  89 
  90         Value result = ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitResolveMethodAndLoadCounters(methodConstant, klassHintValue, methodDescriptionValue, fs);
  91 
  92         gen.setResult(this, result);
  93     }
  94 
  95 }