1 /*
   2  * Copyright (c) 2014, 2016, 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.hotspot;
  24 
  25 import org.graalvm.compiler.core.common.CompilationIdentifier;
  26 import org.graalvm.compiler.hotspot.stubs.Stub;
  27 import org.graalvm.compiler.lir.LIR;
  28 import org.graalvm.compiler.lir.LIRFrameState;
  29 import org.graalvm.compiler.lir.StandardOp.SaveRegistersOp;
  30 import org.graalvm.compiler.lir.framemap.FrameMapBuilder;
  31 import org.graalvm.compiler.lir.gen.LIRGenerationResult;
  32 import org.graalvm.util.Equivalence;
  33 import org.graalvm.util.EconomicMap;
  34 
  35 import jdk.vm.ci.code.CallingConvention;
  36 import jdk.vm.ci.code.StackSlot;
  37 
  38 public class HotSpotLIRGenerationResult extends LIRGenerationResult {
  39 
  40     /**
  41      * The slot reserved for storing the original return address when a frame is marked for
  42      * deoptimization. The return address slot in the callee is overwritten with the address of a
  43      * deoptimization stub.
  44      */
  45     private StackSlot deoptimizationRescueSlot;
  46     protected final Object stub;
  47 
  48     private int maxInterpreterFrameSize;
  49 
  50     /**
  51      * Map from debug infos that need to be updated with callee save information to the operations
  52      * that provide the information.
  53      */
  54     private EconomicMap<LIRFrameState, SaveRegistersOp> calleeSaveInfo = EconomicMap.create(Equivalence.IDENTITY_WITH_SYSTEM_HASHCODE);
  55 
  56     public HotSpotLIRGenerationResult(CompilationIdentifier compilationId, LIR lir, FrameMapBuilder frameMapBuilder, CallingConvention callingConvention, Object stub) {
  57         super(compilationId, lir, frameMapBuilder, callingConvention);
  58         this.stub = stub;
  59     }
  60 
  61     public EconomicMap<LIRFrameState, SaveRegistersOp> getCalleeSaveInfo() {
  62         return calleeSaveInfo;
  63     }
  64 
  65     public Stub getStub() {
  66         return (Stub) stub;
  67     }
  68 
  69     public StackSlot getDeoptimizationRescueSlot() {
  70         return deoptimizationRescueSlot;
  71     }
  72 
  73     public final void setDeoptimizationRescueSlot(StackSlot stackSlot) {
  74         this.deoptimizationRescueSlot = stackSlot;
  75     }
  76 
  77     public void setMaxInterpreterFrameSize(int maxInterpreterFrameSize) {
  78         this.maxInterpreterFrameSize = maxInterpreterFrameSize;
  79     }
  80 
  81     public int getMaxInterpreterFrameSize() {
  82         return maxInterpreterFrameSize;
  83     }
  84 }