graal/21.0.0.2 : substratevm/com.oracle.svm.core.genscavenge/com/oracle/svm/core/genscavenge/ReferenceObjectProcessing.class

final class com.oracle.svm.core.genscavenge.ReferenceObjectProcessing
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.svm.core.genscavenge.ReferenceObjectProcessing
  super_class: java.lang.Object
{
  private static java.lang.ref.Reference<?> rememberedRefsList;
    descriptor: Ljava/lang/ref/Reference;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Signature: Ljava/lang/ref/Reference<*>;

  private static org.graalvm.word.UnsignedWord maxSoftRefAccessIntervalMs;
    descriptor: Lorg/graalvm/word/UnsignedWord;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC

  private static boolean softReferencesAreWeak;
    descriptor: Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC

  private static long initialSoftRefClock;
    descriptor: J
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 50
            ldc Lcom/oracle/svm/core/genscavenge/ReferenceObjectProcessing;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.$assertionsDisabled:Z
         3: .line 58
            getstatic com.oracle.svm.core.util.UnsignedUtils.MAX_VALUE:Lorg/graalvm/word/UnsignedWord;
            putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.maxSoftRefAccessIntervalMs:Lorg/graalvm/word/UnsignedWord;
         4: .line 61
            iconst_0
            putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.softReferencesAreWeak:Z
         5: .line 67
            lconst_0
            putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.initialSoftRefClock:J
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.core.genscavenge.ReferenceObjectProcessing this
         0: .line 69
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 70
            return
        end local 0 // com.oracle.svm.core.genscavenge.ReferenceObjectProcessing this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/svm/core/genscavenge/ReferenceObjectProcessing;

  public static void setSoftReferencesAreWeak(boolean);
    descriptor: (Z)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // boolean enabled
         0: .line 77
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.$assertionsDisabled:Z
            ifne 1
            invokestatic com.oracle.svm.core.thread.VMOperation.isGCInProgress:()Z
            ifne 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 78
      StackMap locals:
      StackMap stack:
            iload 0 /* enabled */
            putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.softReferencesAreWeak:Z
         2: .line 79
            return
        end local 0 // boolean enabled
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0  enabled  Z
    MethodParameters:
         Name  Flags
      enabled  

  public static void discoverIfReference(java.lang.Object, com.oracle.svm.core.heap.ObjectReferenceVisitor);
    descriptor: (Ljava/lang/Object;Lcom/oracle/svm/core/heap/ObjectReferenceVisitor;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // java.lang.Object object
        start local 1 // com.oracle.svm.core.heap.ObjectReferenceVisitor refVisitor
         0: .line 83
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.$assertionsDisabled:Z
            ifne 1
            aload 0 /* object */
            ifnonnull 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 84
      StackMap locals:
      StackMap stack:
            aload 0 /* object */
            invokestatic com.oracle.svm.core.snippets.KnownIntrinsics.readHub:(Ljava/lang/Object;)Lcom/oracle/svm/core/hub/DynamicHub;
            astore 2 /* hub */
        start local 2 // com.oracle.svm.core.hub.DynamicHub hub
         2: .line 85
            ldc 0.010000000000000009
            aload 2 /* hub */
            invokevirtual com.oracle.svm.core.hub.DynamicHub.isReferenceInstanceClass:()Z
            invokestatic org.graalvm.compiler.nodes.extended.BranchProbabilityNode.probability:(DZ)Z
            ifeq 4
         3: .line 86
            aload 0 /* object */
            aload 1 /* refVisitor */
            invokestatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.discover:(Ljava/lang/Object;Lcom/oracle/svm/core/heap/ObjectReferenceVisitor;)V
         4: .line 88
      StackMap locals: com.oracle.svm.core.hub.DynamicHub
      StackMap stack:
            return
        end local 2 // com.oracle.svm.core.hub.DynamicHub hub
        end local 1 // com.oracle.svm.core.heap.ObjectReferenceVisitor refVisitor
        end local 0 // java.lang.Object object
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    5     0      object  Ljava/lang/Object;
            0    5     1  refVisitor  Lcom/oracle/svm/core/heap/ObjectReferenceVisitor;
            2    5     2         hub  Lcom/oracle/svm/core/hub/DynamicHub;
    RuntimeVisibleAnnotations: 
      com.oracle.svm.core.annotate.AlwaysInline(value = "GC performance")
    MethodParameters:
            Name  Flags
      object      
      refVisitor  

  private static void discover(java.lang.Object, com.oracle.svm.core.heap.ObjectReferenceVisitor);
    descriptor: (Ljava/lang/Object;Lcom/oracle/svm/core/heap/ObjectReferenceVisitor;)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=10, args_size=2
        start local 0 // java.lang.Object obj
        start local 1 // com.oracle.svm.core.heap.ObjectReferenceVisitor refVisitor
         0: .line 91
            aload 0 /* obj */
            ldc Ljava/lang/ref/Reference;
            invokestatic com.oracle.svm.core.snippets.KnownIntrinsics.convertUnknownValue:(Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;
            checkcast java.lang.ref.Reference
            astore 2 /* dr */
        start local 2 // java.lang.ref.Reference dr
         1: .line 92
            invokestatic com.oracle.svm.core.log.Log.noopLog:()Lcom/oracle/svm/core/log/Log;
            ldc "[ReferenceObjectProcessing.discover: "
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            aload 2 /* dr */
            invokevirtual com.oracle.svm.core.log.Log.object:(Ljava/lang/Object;)Lcom/oracle/svm/core/log/Log;
            astore 3 /* trace */
        start local 3 // com.oracle.svm.core.log.Log trace
         2: .line 93
            aload 2 /* dr */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getNextDiscovered:(Ljava/lang/ref/Reference;)Ljava/lang/ref/Reference;
            ifnull 5
         3: .line 94
            aload 3 /* trace */
            ldc " already discovered]"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
            pop
         4: .line 95
            return
         5: .line 97
      StackMap locals: java.lang.ref.Reference com.oracle.svm.core.log.Log
      StackMap stack:
            aload 2 /* dr */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getReferentPointer:(Ljava/lang/ref/Reference;)Lorg/graalvm/word/Pointer;
            astore 4 /* referentAddr */
        start local 4 // org.graalvm.word.Pointer referentAddr
         6: .line 98
            aload 3 /* trace */
            ldc " referent: "
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            aload 4 /* referentAddr */
            invokevirtual com.oracle.svm.core.log.Log.hex:(Lorg/graalvm/word/WordBase;)Lcom/oracle/svm/core/log/Log;
            pop
         7: .line 99
            aload 4 /* referentAddr */
            invokeinterface org.graalvm.word.Pointer.isNull:()Z
            ifeq 10
         8: .line 106
            aload 3 /* trace */
            ldc " is inactive]"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
            pop
         9: .line 107
            return
        10: .line 109
      StackMap locals: org.graalvm.word.Pointer
      StackMap stack:
            invokestatic com.oracle.svm.core.heap.Heap.getHeap:()Lcom/oracle/svm/core/heap/Heap;
            aload 4 /* referentAddr */
            invokevirtual com.oracle.svm.core.heap.Heap.isInImageHeap:(Lorg/graalvm/word/Pointer;)Z
            ifeq 13
        11: .line 111
            aload 3 /* trace */
            ldc " is in image heap]"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
            pop
        12: .line 112
            return
        13: .line 114
      StackMap locals:
      StackMap stack:
            aload 2 /* dr */
            aload 4 /* referentAddr */
            invokestatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.maybeUpdateForwardedReference:(Ljava/lang/ref/Reference;Lorg/graalvm/word/Pointer;)Z
            ifeq 16
        14: .line 115
            aload 3 /* trace */
            ldc " has already been promoted and field has been updated]"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
            pop
        15: .line 116
            return
        16: .line 118
      StackMap locals:
      StackMap stack:
            aload 4 /* referentAddr */
            invokeinterface org.graalvm.word.Pointer.toObject:()Ljava/lang/Object;
            invokestatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.willSurviveThisCollection:(Ljava/lang/Object;)Z
            ifeq 20
        17: .line 120
            invokestatic com.oracle.svm.core.genscavenge.HeapImpl.getHeapImpl:()Lcom/oracle/svm/core/genscavenge/HeapImpl;
            aload 2 /* dr */
            aload 4 /* referentAddr */
            invokeinterface org.graalvm.word.Pointer.toObject:()Ljava/lang/Object;
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.dirtyCardIfNecessary:(Ljava/lang/Object;Ljava/lang/Object;)V
        18: .line 121
            aload 3 /* trace */
            ldc " referent is in a to-space]"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
            pop
        19: .line 122
            return
        20: .line 124
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.softReferencesAreWeak:Z
            ifne 29
            aload 2 /* dr */
            instanceof java.lang.ref.SoftReference
            ifeq 29
        21: .line 125
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getSoftReferenceClock:()J
            lstore 5 /* clock */
        start local 5 // long clock
        22: .line 126
            aload 2 /* dr */
            checkcast java.lang.ref.SoftReference
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getSoftReferenceTimestamp:(Ljava/lang/ref/SoftReference;)J
            lstore 7 /* timestamp */
        start local 7 // long timestamp
        23: .line 127
            lload 7 /* timestamp */
            lconst_0
            lcmp
            ifne 25
        24: .line 128
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.initialSoftRefClock:J
            lstore 7 /* timestamp */
        25: .line 130
      StackMap locals: long long
      StackMap stack:
            lload 5 /* clock */
            lload 7 /* timestamp */
            lsub
            invokestatic org.graalvm.word.WordFactory.unsigned:(J)Lorg/graalvm/word/UnsignedWord;
            astore 9 /* elapsed */
        start local 9 // org.graalvm.word.UnsignedWord elapsed
        26: .line 131
            aload 9 /* elapsed */
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.maxSoftRefAccessIntervalMs:Lorg/graalvm/word/UnsignedWord;
            invokeinterface org.graalvm.word.UnsignedWord.belowThan:(Lorg/graalvm/word/UnsignedWord;)Z
            ifeq 29
        27: .line 132
            aload 1 /* refVisitor */
            aload 2 /* dr */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getReferentFieldAddress:(Ljava/lang/ref/Reference;)Lorg/graalvm/word/Pointer;
            iconst_1
            invokeinterface com.oracle.svm.core.heap.ObjectReferenceVisitor.visitObjectReference:(Lorg/graalvm/word/Pointer;Z)Z
            pop
        28: .line 133
            return
        end local 9 // org.graalvm.word.UnsignedWord elapsed
        end local 7 // long timestamp
        end local 5 // long clock
        29: .line 136
      StackMap locals:
      StackMap stack:
            aload 3 /* trace */
            ldc " remembered to revisit later]"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
            pop
        30: .line 138
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.rememberedRefsList:Ljava/lang/ref/Reference;
            ifnull 31
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.rememberedRefsList:Ljava/lang/ref/Reference;
            goto 32
      StackMap locals:
      StackMap stack:
        31: aload 2 /* dr */
      StackMap locals:
      StackMap stack: java.lang.ref.Reference
        32: astore 5 /* next */
        start local 5 // java.lang.ref.Reference next
        33: .line 139
            aload 2 /* dr */
            aload 5 /* next */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.setNextDiscovered:(Ljava/lang/ref/Reference;Ljava/lang/ref/Reference;)V
        34: .line 140
            aload 2 /* dr */
            putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.rememberedRefsList:Ljava/lang/ref/Reference;
        35: .line 141
            return
        end local 5 // java.lang.ref.Reference next
        end local 4 // org.graalvm.word.Pointer referentAddr
        end local 3 // com.oracle.svm.core.log.Log trace
        end local 2 // java.lang.ref.Reference dr
        end local 1 // com.oracle.svm.core.heap.ObjectReferenceVisitor refVisitor
        end local 0 // java.lang.Object obj
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   36     0           obj  Ljava/lang/Object;
            0   36     1    refVisitor  Lcom/oracle/svm/core/heap/ObjectReferenceVisitor;
            1   36     2            dr  Ljava/lang/ref/Reference<*>;
            2   36     3         trace  Lcom/oracle/svm/core/log/Log;
            6   36     4  referentAddr  Lorg/graalvm/word/Pointer;
           22   29     5         clock  J
           23   29     7     timestamp  J
           26   29     9       elapsed  Lorg/graalvm/word/UnsignedWord;
           33   36     5          next  Ljava/lang/ref/Reference<*>;
    MethodParameters:
            Name  Flags
      obj         
      refVisitor  

  static java.lang.ref.Reference<?> processRememberedReferences();
    descriptor: ()Ljava/lang/ref/Reference;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=2, args_size=0
         0: .line 150
            aconst_null
            astore 0 /* pendingHead */
        start local 0 // java.lang.ref.Reference pendingHead
         1: .line 151
            invokestatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.popRememberedRef:()Ljava/lang/ref/Reference;
            astore 1 /* current */
        start local 1 // java.lang.ref.Reference current
         2: goto 9
         3: .line 152
      StackMap locals: java.lang.ref.Reference java.lang.ref.Reference
      StackMap stack:
            aload 1 /* current */
            invokestatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.processRememberedRef:(Ljava/lang/ref/Reference;)Z
            ifne 8
         4: .line 153
            aload 1 /* current */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.hasQueue:(Ljava/lang/ref/Reference;)Z
            ifeq 7
         5: .line 154
            aload 1 /* current */
            aload 0 /* pendingHead */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.setNextDiscovered:(Ljava/lang/ref/Reference;Ljava/lang/ref/Reference;)V
         6: .line 155
            aload 1 /* current */
            astore 0 /* pendingHead */
         7: .line 157
      StackMap locals:
      StackMap stack:
            invokestatic com.oracle.svm.core.genscavenge.HeapImpl.getHeapImpl:()Lcom/oracle/svm/core/genscavenge/HeapImpl;
            aload 1 /* current */
            aload 0 /* pendingHead */
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.dirtyCardIfNecessary:(Ljava/lang/Object;Ljava/lang/Object;)V
         8: .line 151
      StackMap locals:
      StackMap stack:
            invokestatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.popRememberedRef:()Ljava/lang/ref/Reference;
            astore 1 /* current */
      StackMap locals:
      StackMap stack:
         9: aload 1 /* current */
            ifnonnull 3
        end local 1 // java.lang.ref.Reference current
        10: .line 160
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.$assertionsDisabled:Z
            ifne 11
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.rememberedRefsList:Ljava/lang/ref/Reference;
            ifnull 11
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
        11: .line 161
      StackMap locals:
      StackMap stack:
            aload 0 /* pendingHead */
            areturn
        end local 0 // java.lang.ref.Reference pendingHead
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            1   12     0  pendingHead  Ljava/lang/ref/Reference<*>;
            2   10     1      current  Ljava/lang/ref/Reference<*>;
    Signature: ()Ljava/lang/ref/Reference<*>;

  static void afterCollection(org.graalvm.word.UnsignedWord, org.graalvm.word.UnsignedWord);
    descriptor: (Lorg/graalvm/word/UnsignedWord;Lorg/graalvm/word/UnsignedWord;)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // org.graalvm.word.UnsignedWord usedBytes
        start local 1 // org.graalvm.word.UnsignedWord maxBytes
         0: .line 165
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.$assertionsDisabled:Z
            ifne 1
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.rememberedRefsList:Ljava/lang/ref/Reference;
            ifnull 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 166
      StackMap locals:
      StackMap stack:
            aload 1 /* maxBytes */
            aload 0 /* usedBytes */
            invokeinterface org.graalvm.word.UnsignedWord.subtract:(Lorg/graalvm/word/UnsignedWord;)Lorg/graalvm/word/UnsignedWord;
            ldc 1048576
            invokeinterface org.graalvm.word.UnsignedWord.unsignedDivide:(I)Lorg/graalvm/word/UnsignedWord;
            astore 2 /* unusedMbytes */
        start local 2 // org.graalvm.word.UnsignedWord unusedMbytes
         2: .line 167
            aload 2 /* unusedMbytes */
            getstatic com.oracle.svm.core.genscavenge.HeapOptions.SoftRefLRUPolicyMSPerMB:Lcom/oracle/svm/core/option/HostedOptionKey;
            invokevirtual com.oracle.svm.core.option.HostedOptionKey.getValue:()Ljava/lang/Object;
            checkcast java.lang.Integer
            invokevirtual java.lang.Integer.intValue:()I
            invokeinterface org.graalvm.word.UnsignedWord.multiply:(I)Lorg/graalvm/word/UnsignedWord;
            putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.maxSoftRefAccessIntervalMs:Lorg/graalvm/word/UnsignedWord;
         3: .line 168
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.updateSoftReferenceClock:()V
         4: .line 169
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.initialSoftRefClock:J
            lconst_0
            lcmp
            ifne 6
         5: .line 170
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getSoftReferenceClock:()J
            putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.initialSoftRefClock:J
         6: .line 172
      StackMap locals: org.graalvm.word.UnsignedWord
      StackMap stack:
            return
        end local 2 // org.graalvm.word.UnsignedWord unusedMbytes
        end local 1 // org.graalvm.word.UnsignedWord maxBytes
        end local 0 // org.graalvm.word.UnsignedWord usedBytes
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    7     0     usedBytes  Lorg/graalvm/word/UnsignedWord;
            0    7     1      maxBytes  Lorg/graalvm/word/UnsignedWord;
            2    7     2  unusedMbytes  Lorg/graalvm/word/UnsignedWord;
    MethodParameters:
           Name  Flags
      usedBytes  
      maxBytes   

  private static boolean processRememberedRef(java.lang.ref.Reference<?>);
    descriptor: (Ljava/lang/ref/Reference;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // java.lang.ref.Reference dr
         0: .line 184
            aload 0 /* dr */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getReferentPointer:(Ljava/lang/ref/Reference;)Lorg/graalvm/word/Pointer;
            astore 1 /* refPointer */
        start local 1 // org.graalvm.word.Pointer refPointer
         1: .line 185
            aload 1 /* refPointer */
            invokeinterface org.graalvm.word.Pointer.isNull:()Z
            ifeq 3
         2: .line 186
            iconst_1
            ireturn
         3: .line 188
      StackMap locals: org.graalvm.word.Pointer
      StackMap stack:
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.$assertionsDisabled:Z
            ifne 4
            invokestatic com.oracle.svm.core.genscavenge.HeapImpl.getHeapImpl:()Lcom/oracle/svm/core/genscavenge/HeapImpl;
            aload 1 /* refPointer */
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.isInImageHeap:(Lorg/graalvm/word/Pointer;)Z
            ifeq 4
            new java.lang.AssertionError
            dup
            ldc "Image heap referent: should not have been discovered"
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         4: .line 189
      StackMap locals:
      StackMap stack:
            aload 0 /* dr */
            aload 1 /* refPointer */
            invokestatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.maybeUpdateForwardedReference:(Ljava/lang/ref/Reference;Lorg/graalvm/word/Pointer;)Z
            ifeq 6
         5: .line 190
            iconst_1
            ireturn
         6: .line 192
      StackMap locals:
      StackMap stack:
            aload 1 /* refPointer */
            invokeinterface org.graalvm.word.Pointer.toObject:()Ljava/lang/Object;
            astore 2 /* refObject */
        start local 2 // java.lang.Object refObject
         7: .line 193
            aload 2 /* refObject */
            invokestatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.willSurviveThisCollection:(Ljava/lang/Object;)Z
            ifeq 10
         8: .line 194
            invokestatic com.oracle.svm.core.genscavenge.HeapImpl.getHeapImpl:()Lcom/oracle/svm/core/genscavenge/HeapImpl;
            aload 0 /* dr */
            aload 2 /* refObject */
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.dirtyCardIfNecessary:(Ljava/lang/Object;Ljava/lang/Object;)V
         9: .line 195
            iconst_1
            ireturn
        10: .line 204
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 0 /* dr */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.clear:(Ljava/lang/ref/Reference;)V
        11: .line 205
            iconst_0
            ireturn
        end local 2 // java.lang.Object refObject
        end local 1 // org.graalvm.word.Pointer refPointer
        end local 0 // java.lang.ref.Reference dr
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   12     0          dr  Ljava/lang/ref/Reference<*>;
            1   12     1  refPointer  Lorg/graalvm/word/Pointer;
            7   12     2   refObject  Ljava/lang/Object;
    Signature: (Ljava/lang/ref/Reference<*>;)Z
    MethodParameters:
      Name  Flags
      dr    

  private static boolean maybeUpdateForwardedReference(java.lang.ref.Reference<?>, org.graalvm.word.Pointer);
    descriptor: (Ljava/lang/ref/Reference;Lorg/graalvm/word/Pointer;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // java.lang.ref.Reference dr
        start local 1 // org.graalvm.word.Pointer referentAddr
         0: .line 209
            aload 1 /* referentAddr */
            invokestatic com.oracle.svm.core.genscavenge.ObjectHeaderImpl.readHeaderFromPointer:(Lorg/graalvm/word/Pointer;)Lorg/graalvm/word/UnsignedWord;
            astore 2 /* header */
        start local 2 // org.graalvm.word.UnsignedWord header
         1: .line 210
            aload 2 /* header */
            invokestatic com.oracle.svm.core.genscavenge.ObjectHeaderImpl.isForwardedHeader:(Lorg/graalvm/word/UnsignedWord;)Z
            ifeq 6
         2: .line 211
            aload 1 /* referentAddr */
            invokestatic com.oracle.svm.core.genscavenge.ObjectHeaderImpl.getForwardedObject:(Lorg/graalvm/word/Pointer;)Ljava/lang/Object;
            invokestatic org.graalvm.compiler.word.Word.objectToUntrackedPointer:(Ljava/lang/Object;)Lorg/graalvm/compiler/word/Word;
            astore 3 /* forwardedPointer */
        start local 3 // org.graalvm.word.Pointer forwardedPointer
         3: .line 212
            aload 0 /* dr */
            aload 3 /* forwardedPointer */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.setReferentPointer:(Ljava/lang/ref/Reference;Lorg/graalvm/word/Pointer;)V
         4: .line 213
            invokestatic com.oracle.svm.core.genscavenge.HeapImpl.getHeapImpl:()Lcom/oracle/svm/core/genscavenge/HeapImpl;
            aload 0 /* dr */
            aload 3 /* forwardedPointer */
            invokeinterface org.graalvm.word.Pointer.toObject:()Ljava/lang/Object;
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.dirtyCardIfNecessary:(Ljava/lang/Object;Ljava/lang/Object;)V
         5: .line 214
            iconst_1
            ireturn
        end local 3 // org.graalvm.word.Pointer forwardedPointer
         6: .line 216
      StackMap locals: org.graalvm.word.UnsignedWord
      StackMap stack:
            iconst_0
            ireturn
        end local 2 // org.graalvm.word.UnsignedWord header
        end local 1 // org.graalvm.word.Pointer referentAddr
        end local 0 // java.lang.ref.Reference dr
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    7     0                dr  Ljava/lang/ref/Reference<*>;
            0    7     1      referentAddr  Lorg/graalvm/word/Pointer;
            1    7     2            header  Lorg/graalvm/word/UnsignedWord;
            3    6     3  forwardedPointer  Lorg/graalvm/word/Pointer;
    Signature: (Ljava/lang/ref/Reference<*>;Lorg/graalvm/word/Pointer;)Z
    MethodParameters:
              Name  Flags
      dr            
      referentAddr  

  private static boolean willSurviveThisCollection(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=1, locals=3, args_size=1
        start local 0 // java.lang.Object obj
         0: .line 220
            aload 0 /* obj */
            invokestatic com.oracle.svm.core.genscavenge.HeapChunk.getEnclosingHeapChunk:(Ljava/lang/Object;)Lcom/oracle/svm/core/genscavenge/HeapChunk$Header;
            astore 1 /* chunk */
        start local 1 // com.oracle.svm.core.genscavenge.HeapChunk$Header chunk
         1: .line 221
            aload 1 /* chunk */
            invokestatic com.oracle.svm.core.genscavenge.HeapChunk.getSpace:(Lcom/oracle/svm/core/genscavenge/HeapChunk$Header;)Lcom/oracle/svm/core/genscavenge/Space;
            astore 2 /* space */
        start local 2 // com.oracle.svm.core.genscavenge.Space space
         2: .line 222
            aload 2 /* space */
            invokevirtual com.oracle.svm.core.genscavenge.Space.isFromSpace:()Z
            ifeq 3
            iconst_0
            goto 4
      StackMap locals: com.oracle.svm.core.genscavenge.HeapChunk$Header com.oracle.svm.core.genscavenge.Space
      StackMap stack:
         3: iconst_1
      StackMap locals:
      StackMap stack: int
         4: ireturn
        end local 2 // com.oracle.svm.core.genscavenge.Space space
        end local 1 // com.oracle.svm.core.genscavenge.HeapChunk$Header chunk
        end local 0 // java.lang.Object obj
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    5     0    obj  Ljava/lang/Object;
            1    5     1  chunk  Lcom/oracle/svm/core/genscavenge/HeapChunk$Header<*>;
            2    5     2  space  Lcom/oracle/svm/core/genscavenge/Space;
    MethodParameters:
      Name  Flags
      obj   

  private static java.lang.ref.Reference<?> popRememberedRef();
    descriptor: ()Ljava/lang/ref/Reference;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=0
         0: .line 226
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.rememberedRefsList:Ljava/lang/ref/Reference;
            astore 0 /* result */
        start local 0 // java.lang.ref.Reference result
         1: .line 227
            aload 0 /* result */
            ifnull 7
         2: .line 228
            aload 0 /* result */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getNextDiscovered:(Ljava/lang/ref/Reference;)Ljava/lang/ref/Reference;
            astore 1 /* next */
        start local 1 // java.lang.ref.Reference next
         3: .line 229
            aload 1 /* next */
            aload 0 /* result */
            if_acmpeq 4
            aload 1 /* next */
            goto 5
      StackMap locals: java.lang.ref.Reference java.lang.ref.Reference
      StackMap stack:
         4: aconst_null
      StackMap locals:
      StackMap stack: java.lang.ref.Reference
         5: putstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.rememberedRefsList:Ljava/lang/ref/Reference;
         6: .line 230
            aload 0 /* result */
            aconst_null
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.setNextDiscovered:(Ljava/lang/ref/Reference;Ljava/lang/ref/Reference;)V
        end local 1 // java.lang.ref.Reference next
         7: .line 232
      StackMap locals:
      StackMap stack:
            aload 0 /* result */
            areturn
        end local 0 // java.lang.ref.Reference result
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            1    8     0  result  Ljava/lang/ref/Reference<*>;
            3    7     1    next  Ljava/lang/ref/Reference<*>;
    Signature: ()Ljava/lang/ref/Reference<*>;

  public static boolean verify(java.lang.ref.Reference<?>);
    descriptor: (Ljava/lang/ref/Reference;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=12, args_size=1
        start local 0 // java.lang.ref.Reference dr
         0: .line 236
            aload 0 /* dr */
            invokestatic com.oracle.svm.core.heap.ReferenceInternals.getReferentPointer:(Ljava/lang/ref/Reference;)Lorg/graalvm/word/Pointer;
            astore 1 /* refPointer */
        start local 1 // org.graalvm.word.Pointer refPointer
         1: .line 237
            aload 1 /* refPointer */
            invokestatic com.oracle.svm.core.genscavenge.HeapVerifier.classifyPointer:(Lorg/graalvm/word/Pointer;)I
            istore 2 /* refClassification */
        start local 2 // int refClassification
         2: .line 238
            iload 2 /* refClassification */
            ifge 10
         3: .line 239
            invokestatic com.oracle.svm.core.log.Log.log:()Lcom/oracle/svm/core/log/Log;
            astore 3 /* witness */
        start local 3 // com.oracle.svm.core.log.Log witness
         4: .line 240
            aload 3 /* witness */
            ldc "[ReferenceObjectProcessing.verify:"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            pop
         5: .line 241
            aload 3 /* witness */
            ldc "  epoch: "
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokestatic com.oracle.svm.core.genscavenge.HeapImpl.getHeapImpl:()Lcom/oracle/svm/core/genscavenge/HeapImpl;
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.getGCImpl:()Lcom/oracle/svm/core/genscavenge/GCImpl;
            invokevirtual com.oracle.svm.core.genscavenge.GCImpl.getCollectionEpoch:()Lorg/graalvm/word/UnsignedWord;
            invokevirtual com.oracle.svm.core.log.Log.unsigned:(Lorg/graalvm/word/WordBase;)Lcom/oracle/svm/core/log/Log;
            pop
         6: .line 242
            aload 3 /* witness */
            ldc "  refClassification: "
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            iload 2 /* refClassification */
            invokevirtual com.oracle.svm.core.log.Log.signed:(I)Lcom/oracle/svm/core/log/Log;
            pop
         7: .line 243
            aload 3 /* witness */
            ldc "]"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
            pop
         8: .line 244
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.$assertionsDisabled:Z
            ifne 9
            iload 2 /* refClassification */
            ifge 9
            new java.lang.AssertionError
            dup
            ldc "Bad referent."
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         9: .line 245
      StackMap locals: org.graalvm.word.Pointer int com.oracle.svm.core.log.Log
      StackMap stack:
            iconst_0
            ireturn
        end local 3 // com.oracle.svm.core.log.Log witness
        10: .line 247
      StackMap locals:
      StackMap stack:
            invokestatic com.oracle.svm.core.genscavenge.HeapImpl.getHeapImpl:()Lcom/oracle/svm/core/genscavenge/HeapImpl;
            astore 3 /* heap */
        start local 3 // com.oracle.svm.core.genscavenge.HeapImpl heap
        11: .line 248
            aload 3 /* heap */
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.getYoungGeneration:()Lcom/oracle/svm/core/genscavenge/YoungGeneration;
            astore 4 /* youngGen */
        start local 4 // com.oracle.svm.core.genscavenge.YoungGeneration youngGen
        12: .line 249
            aload 3 /* heap */
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.getOldGeneration:()Lcom/oracle/svm/core/genscavenge/OldGeneration;
            astore 5 /* oldGen */
        start local 5 // com.oracle.svm.core.genscavenge.OldGeneration oldGen
        13: .line 250
            aload 1 /* refPointer */
            invokeinterface org.graalvm.word.Pointer.isNull:()Z
            istore 6 /* refNull */
        start local 6 // boolean refNull
        14: .line 251
            iload 6 /* refNull */
            ifne 15
            aload 3 /* heap */
            aload 1 /* refPointer */
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.isInImageHeapSlow:(Lorg/graalvm/word/Pointer;)Z
            ifeq 15
            iconst_1
            goto 16
      StackMap locals: java.lang.ref.Reference org.graalvm.word.Pointer int com.oracle.svm.core.genscavenge.HeapImpl com.oracle.svm.core.genscavenge.YoungGeneration com.oracle.svm.core.genscavenge.OldGeneration int
      StackMap stack:
        15: iconst_0
      StackMap locals:
      StackMap stack: int
        16: istore 7 /* refBootImage */
        start local 7 // boolean refBootImage
        17: .line 252
            iload 6 /* refNull */
            ifne 18
            aload 4 /* youngGen */
            aload 1 /* refPointer */
            invokevirtual com.oracle.svm.core.genscavenge.YoungGeneration.slowlyFindPointer:(Lorg/graalvm/word/Pointer;)Z
            ifeq 18
            iconst_1
            goto 19
      StackMap locals: int
      StackMap stack:
        18: iconst_0
      StackMap locals:
      StackMap stack: int
        19: istore 8 /* refYoung */
        start local 8 // boolean refYoung
        20: .line 253
            iload 6 /* refNull */
            ifne 21
            aload 5 /* oldGen */
            aload 1 /* refPointer */
            invokevirtual com.oracle.svm.core.genscavenge.OldGeneration.slowlyFindPointerInFromSpace:(Lorg/graalvm/word/Pointer;)Z
            ifeq 21
            iconst_1
            goto 22
      StackMap locals: int
      StackMap stack:
        21: iconst_0
      StackMap locals:
      StackMap stack: int
        22: istore 9 /* refOldFrom */
        start local 9 // boolean refOldFrom
        23: .line 254
            iload 6 /* refNull */
            ifne 24
            aload 5 /* oldGen */
            aload 1 /* refPointer */
            invokevirtual com.oracle.svm.core.genscavenge.OldGeneration.slowlyFindPointerInToSpace:(Lorg/graalvm/word/Pointer;)Z
            ifeq 24
            iconst_1
            goto 25
      StackMap locals: int
      StackMap stack:
        24: iconst_0
      StackMap locals:
      StackMap stack: int
        25: istore 10 /* refOldTo */
        start local 10 // boolean refOldTo
        26: .line 256
            iload 6 /* refNull */
            ifne 36
            iload 8 /* refYoung */
            ifne 36
            iload 7 /* refBootImage */
            ifne 36
            iload 9 /* refOldFrom */
            ifne 36
        27: .line 257
            invokestatic com.oracle.svm.core.log.Log.log:()Lcom/oracle/svm/core/log/Log;
            astore 11 /* witness */
        start local 11 // com.oracle.svm.core.log.Log witness
        28: .line 258
            aload 11 /* witness */
            ldc "[ReferenceObjectProcessing.verify:"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            pop
        29: .line 259
            aload 11 /* witness */
            ldc "  epoch: "
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokestatic com.oracle.svm.core.genscavenge.HeapImpl.getHeapImpl:()Lcom/oracle/svm/core/genscavenge/HeapImpl;
            invokevirtual com.oracle.svm.core.genscavenge.HeapImpl.getGCImpl:()Lcom/oracle/svm/core/genscavenge/GCImpl;
            invokevirtual com.oracle.svm.core.genscavenge.GCImpl.getCollectionEpoch:()Lorg/graalvm/word/UnsignedWord;
            invokevirtual com.oracle.svm.core.log.Log.unsigned:(Lorg/graalvm/word/WordBase;)Lcom/oracle/svm/core/log/Log;
            pop
        30: .line 260
            aload 11 /* witness */
            ldc "  refBootImage: "
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            iload 7 /* refBootImage */
            invokevirtual com.oracle.svm.core.log.Log.bool:(Z)Lcom/oracle/svm/core/log/Log;
            pop
        31: .line 261
            aload 11 /* witness */
            ldc "  refYoung: "
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            iload 8 /* refYoung */
            invokevirtual com.oracle.svm.core.log.Log.bool:(Z)Lcom/oracle/svm/core/log/Log;
            pop
        32: .line 262
            aload 11 /* witness */
            ldc "  refOldFrom: "
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            iload 9 /* refOldFrom */
            invokevirtual com.oracle.svm.core.log.Log.bool:(Z)Lcom/oracle/svm/core/log/Log;
            pop
        33: .line 263
            aload 11 /* witness */
            ldc "  referent should be in heap."
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            pop
        34: .line 264
            aload 11 /* witness */
            ldc "]"
            invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
            invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
            pop
        35: .line 265
            iconst_0
            ireturn
        end local 11 // com.oracle.svm.core.log.Log witness
        36: .line 267
      StackMap locals: int
      StackMap stack:
            getstatic com.oracle.svm.core.genscavenge.ReferenceObjectProcessing.$assertionsDisabled:Z
            ifne 37
            iload 10 /* refOldTo */
            ifeq 37
            new java.lang.AssertionError
            dup
            ldc "referent should be in the heap."
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
        37: .line 268
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 10 // boolean refOldTo
        end local 9 // boolean refOldFrom
        end local 8 // boolean refYoung
        end local 7 // boolean refBootImage
        end local 6 // boolean refNull
        end local 5 // com.oracle.svm.core.genscavenge.OldGeneration oldGen
        end local 4 // com.oracle.svm.core.genscavenge.YoungGeneration youngGen
        end local 3 // com.oracle.svm.core.genscavenge.HeapImpl heap
        end local 2 // int refClassification
        end local 1 // org.graalvm.word.Pointer refPointer
        end local 0 // java.lang.ref.Reference dr
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0   38     0                 dr  Ljava/lang/ref/Reference<*>;
            1   38     1         refPointer  Lorg/graalvm/word/Pointer;
            2   38     2  refClassification  I
            4   10     3            witness  Lcom/oracle/svm/core/log/Log;
           11   38     3               heap  Lcom/oracle/svm/core/genscavenge/HeapImpl;
           12   38     4           youngGen  Lcom/oracle/svm/core/genscavenge/YoungGeneration;
           13   38     5             oldGen  Lcom/oracle/svm/core/genscavenge/OldGeneration;
           14   38     6            refNull  Z
           17   38     7       refBootImage  Z
           20   38     8           refYoung  Z
           23   38     9         refOldFrom  Z
           26   38    10           refOldTo  Z
           28   36    11            witness  Lcom/oracle/svm/core/log/Log;
    Signature: (Ljava/lang/ref/Reference<*>;)Z
    MethodParameters:
      Name  Flags
      dr    
}
SourceFile: "ReferenceObjectProcessing.java"
InnerClasses:
  public abstract Header = com.oracle.svm.core.genscavenge.HeapChunk$Header of com.oracle.svm.core.genscavenge.HeapChunk
/

graal/ 21.0.0.2/ substratevm/com.oracle.svm.core.genscavenge/com/oracle/svm/core/genscavenge/ReferenceObjectProcessing.class
