java/10 : jdk.internal.vm.compiler/org/graalvm/compiler/phases/common/UseTrappingNullChecksPhase.class

UseTrappingNullChecksPhase
https://openjdk.java.net/
GPLv2 + Classpath Exception
public class org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase extends org.graalvm.compiler.phases.BasePhase<org.graalvm.compiler.phases.tiers.LowTierContext>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase
  super_class: org.graalvm.compiler.phases.BasePhase
{
  private static final org.graalvm.compiler.debug.CounterKey counterTrappingNullCheck;
    descriptor: Lorg/graalvm/compiler/debug/CounterKey;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final org.graalvm.compiler.debug.CounterKey counterTrappingNullCheckExistingRead;
    descriptor: Lorg/graalvm/compiler/debug/CounterKey;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final org.graalvm.compiler.debug.CounterKey counterTrappingNullCheckUnreached;
    descriptor: Lorg/graalvm/compiler/debug/CounterKey;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final org.graalvm.compiler.debug.CounterKey counterTrappingNullCheckDynamicDeoptimize;
    descriptor: Lorg/graalvm/compiler/debug/CounterKey;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  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=1, locals=0, args_size=0
         0: .line 60
            ldc Lorg/graalvm/compiler/phases/common/UseTrappingNullChecksPhase;
            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 org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.$assertionsDisabled:Z
         3: .line 62
            ldc "TrappingNullCheck"
            invokestatic org.graalvm.compiler.debug.DebugContext.counter:(Ljava/lang/CharSequence;)Lorg/graalvm/compiler/debug/CounterKey;
            putstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.counterTrappingNullCheck:Lorg/graalvm/compiler/debug/CounterKey;
         4: .line 63
            ldc "TrappingNullCheckExistingRead"
            invokestatic org.graalvm.compiler.debug.DebugContext.counter:(Ljava/lang/CharSequence;)Lorg/graalvm/compiler/debug/CounterKey;
            putstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.counterTrappingNullCheckExistingRead:Lorg/graalvm/compiler/debug/CounterKey;
         5: .line 64
            ldc "TrappingNullCheckUnreached"
            invokestatic org.graalvm.compiler.debug.DebugContext.counter:(Ljava/lang/CharSequence;)Lorg/graalvm/compiler/debug/CounterKey;
            putstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.counterTrappingNullCheckUnreached:Lorg/graalvm/compiler/debug/CounterKey;
         6: .line 65
            ldc "TrappingNullCheckDynamicDeoptimize"
            invokestatic org.graalvm.compiler.debug.DebugContext.counter:(Ljava/lang/CharSequence;)Lorg/graalvm/compiler/debug/CounterKey;
            putstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.counterTrappingNullCheckDynamicDeoptimize:Lorg/graalvm/compiler/debug/CounterKey;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase this
         0: .line 60
            aload 0 /* this */
            invokespecial org.graalvm.compiler.phases.BasePhase.<init>:()V
            return
        end local 0 // org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/phases/common/UseTrappingNullChecksPhase;

  protected void run(org.graalvm.compiler.nodes.StructuredGraph, org.graalvm.compiler.phases.tiers.LowTierContext);
    descriptor: (Lorg/graalvm/compiler/nodes/StructuredGraph;Lorg/graalvm/compiler/phases/tiers/LowTierContext;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=6, locals=7, args_size=3
        start local 0 // org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase this
        start local 1 // org.graalvm.compiler.nodes.StructuredGraph graph
        start local 2 // org.graalvm.compiler.phases.tiers.LowTierContext context
         0: .line 69
            aload 2 /* context */
            invokevirtual org.graalvm.compiler.phases.tiers.LowTierContext.getTarget:()Ljdk/vm/ci/code/TargetDescription;
            getfield jdk.vm.ci.code.TargetDescription.implicitNullCheckLimit:I
            ifgt 2
         1: .line 70
            return
         2: .line 72
      StackMap locals:
      StackMap stack:
            getstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.$assertionsDisabled:Z
            ifne 3
            aload 1 /* graph */
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph.getGuardsStage:()Lorg/graalvm/compiler/nodes/StructuredGraph$GuardsStage;
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph$GuardsStage.areFrameStatesAtDeopts:()Z
            ifne 3
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         3: .line 74
      StackMap locals:
      StackMap stack:
            aload 2 /* context */
            invokevirtual org.graalvm.compiler.phases.tiers.LowTierContext.getTarget:()Ljdk/vm/ci/code/TargetDescription;
            getfield jdk.vm.ci.code.TargetDescription.implicitNullCheckLimit:I
            i2l
            lstore 3 /* implicitNullCheckLimit */
        start local 3 // long implicitNullCheckLimit
         4: .line 75
            aload 1 /* graph */
            getstatic org.graalvm.compiler.nodes.DeoptimizeNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph.getNodes:(Lorg/graalvm/compiler/graph/NodeClass;)Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.iterator:()Ljava/util/Iterator;
            astore 6
            goto 7
      StackMap locals: org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase org.graalvm.compiler.nodes.StructuredGraph org.graalvm.compiler.phases.tiers.LowTierContext long top java.util.Iterator
      StackMap stack:
         5: aload 6
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.graalvm.compiler.nodes.DeoptimizeNode
            astore 5 /* deopt */
        start local 5 // org.graalvm.compiler.nodes.DeoptimizeNode deopt
         6: .line 76
            aload 5 /* deopt */
            aload 5 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.DeoptimizeNode.predecessor:()Lorg/graalvm/compiler/graph/Node;
            aload 5 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.DeoptimizeNode.reason:()Ljdk/vm/ci/meta/DeoptimizationReason;
            aload 5 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.DeoptimizeNode.getSpeculation:()Ljdk/vm/ci/meta/JavaConstant;
            lload 3 /* implicitNullCheckLimit */
            invokestatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.tryUseTrappingNullCheck:(Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;Lorg/graalvm/compiler/graph/Node;Ljdk/vm/ci/meta/DeoptimizationReason;Ljdk/vm/ci/meta/JavaConstant;J)V
        end local 5 // org.graalvm.compiler.nodes.DeoptimizeNode deopt
         7: .line 75
      StackMap locals:
      StackMap stack:
            aload 6
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 5
         8: .line 78
            aload 1 /* graph */
            getstatic org.graalvm.compiler.nodes.DynamicDeoptimizeNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph.getNodes:(Lorg/graalvm/compiler/graph/NodeClass;)Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.iterator:()Ljava/util/Iterator;
            astore 6
            goto 11
      StackMap locals:
      StackMap stack:
         9: aload 6
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.graalvm.compiler.nodes.DynamicDeoptimizeNode
            astore 5 /* deopt */
        start local 5 // org.graalvm.compiler.nodes.DynamicDeoptimizeNode deopt
        10: .line 79
            aload 2 /* context */
            invokevirtual org.graalvm.compiler.phases.tiers.LowTierContext.getMetaAccess:()Ljdk/vm/ci/meta/MetaAccessProvider;
            aload 5 /* deopt */
            lload 3 /* implicitNullCheckLimit */
            invokestatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.tryUseTrappingNullCheck:(Ljdk/vm/ci/meta/MetaAccessProvider;Lorg/graalvm/compiler/nodes/DynamicDeoptimizeNode;J)V
        end local 5 // org.graalvm.compiler.nodes.DynamicDeoptimizeNode deopt
        11: .line 78
      StackMap locals:
      StackMap stack:
            aload 6
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 9
        12: .line 82
            return
        end local 3 // long implicitNullCheckLimit
        end local 2 // org.graalvm.compiler.phases.tiers.LowTierContext context
        end local 1 // org.graalvm.compiler.nodes.StructuredGraph graph
        end local 0 // org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase this
      LocalVariableTable:
        Start  End  Slot                    Name  Signature
            0   13     0                    this  Lorg/graalvm/compiler/phases/common/UseTrappingNullChecksPhase;
            0   13     1                   graph  Lorg/graalvm/compiler/nodes/StructuredGraph;
            0   13     2                 context  Lorg/graalvm/compiler/phases/tiers/LowTierContext;
            4   13     3  implicitNullCheckLimit  J
            6    7     5                   deopt  Lorg/graalvm/compiler/nodes/DeoptimizeNode;
           10   11     5                   deopt  Lorg/graalvm/compiler/nodes/DynamicDeoptimizeNode;
    MethodParameters:
         Name  Flags
      graph    
      context  

  private static void tryUseTrappingNullCheck(jdk.vm.ci.meta.MetaAccessProvider, org.graalvm.compiler.nodes.DynamicDeoptimizeNode, long);
    descriptor: (Ljdk/vm/ci/meta/MetaAccessProvider;Lorg/graalvm/compiler/nodes/DynamicDeoptimizeNode;J)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=6, locals=19, args_size=3
        start local 0 // jdk.vm.ci.meta.MetaAccessProvider metaAccessProvider
        start local 1 // org.graalvm.compiler.nodes.DynamicDeoptimizeNode deopt
        start local 2 // long implicitNullCheckLimit
         0: .line 85
            aload 1 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.DynamicDeoptimizeNode.predecessor:()Lorg/graalvm/compiler/graph/Node;
            astore 4 /* predecessor */
        start local 4 // org.graalvm.compiler.graph.Node predecessor
         1: .line 86
            aload 4 /* predecessor */
            instanceof org.graalvm.compiler.nodes.AbstractMergeNode
            ifeq 41
         2: .line 87
            aload 4 /* predecessor */
            checkcast org.graalvm.compiler.nodes.AbstractMergeNode
            astore 5 /* merge */
        start local 5 // org.graalvm.compiler.nodes.AbstractMergeNode merge
         3: .line 91
            aload 1 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.DynamicDeoptimizeNode.getActionAndReason:()Lorg/graalvm/compiler/nodes/ValueNode;
            astore 6 /* reason */
        start local 6 // org.graalvm.compiler.nodes.ValueNode reason
         4: .line 92
            aconst_null
            astore 7 /* reasonPhi */
        start local 7 // org.graalvm.compiler.nodes.ValuePhiNode reasonPhi
         5: .line 93
            aconst_null
            astore 8 /* reasons */
        start local 8 // java.util.List reasons
         6: .line 94
            iconst_0
            istore 9 /* expectedPhis */
        start local 9 // int expectedPhis
         7: .line 96
            aload 6 /* reason */
            instanceof org.graalvm.compiler.nodes.ValuePhiNode
            ifeq 14
         8: .line 97
            aload 6 /* reason */
            checkcast org.graalvm.compiler.nodes.ValuePhiNode
            astore 7 /* reasonPhi */
         9: .line 98
            aload 7 /* reasonPhi */
            invokevirtual org.graalvm.compiler.nodes.ValuePhiNode.merge:()Lorg/graalvm/compiler/nodes/AbstractMergeNode;
            aload 5 /* merge */
            if_acmpeq 11
        10: .line 99
            return
        11: .line 101
      StackMap locals: jdk.vm.ci.meta.MetaAccessProvider org.graalvm.compiler.nodes.DynamicDeoptimizeNode long org.graalvm.compiler.graph.Node org.graalvm.compiler.nodes.AbstractMergeNode org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValuePhiNode java.util.List int
      StackMap stack:
            aload 7 /* reasonPhi */
            invokevirtual org.graalvm.compiler.nodes.ValuePhiNode.values:()Lorg/graalvm/compiler/graph/NodeInputList;
            invokevirtual org.graalvm.compiler.graph.NodeInputList.snapshot:()Ljava/util/List;
            astore 8 /* reasons */
        12: .line 102
            iinc 9 /* expectedPhis */ 1
        13: .line 103
            goto 16
      StackMap locals:
      StackMap stack:
        14: aload 6 /* reason */
            invokevirtual org.graalvm.compiler.nodes.ValueNode.isConstant:()Z
            ifne 16
        15: .line 104
            return
        16: .line 107
      StackMap locals:
      StackMap stack:
            aload 1 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.DynamicDeoptimizeNode.getSpeculation:()Lorg/graalvm/compiler/nodes/ValueNode;
            astore 10 /* speculation */
        start local 10 // org.graalvm.compiler.nodes.ValueNode speculation
        17: .line 108
            aconst_null
            astore 11 /* speculationPhi */
        start local 11 // org.graalvm.compiler.nodes.ValuePhiNode speculationPhi
        18: .line 109
            aconst_null
            astore 12 /* speculations */
        start local 12 // java.util.List speculations
        19: .line 110
            aload 10 /* speculation */
            instanceof org.graalvm.compiler.nodes.ValuePhiNode
            ifeq 25
        20: .line 111
            aload 10 /* speculation */
            checkcast org.graalvm.compiler.nodes.ValuePhiNode
            astore 11 /* speculationPhi */
        21: .line 112
            aload 11 /* speculationPhi */
            invokevirtual org.graalvm.compiler.nodes.ValuePhiNode.merge:()Lorg/graalvm/compiler/nodes/AbstractMergeNode;
            aload 5 /* merge */
            if_acmpeq 23
        22: .line 113
            return
        23: .line 115
      StackMap locals: org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValuePhiNode java.util.List
      StackMap stack:
            aload 11 /* speculationPhi */
            invokevirtual org.graalvm.compiler.nodes.ValuePhiNode.values:()Lorg/graalvm/compiler/graph/NodeInputList;
            invokevirtual org.graalvm.compiler.graph.NodeInputList.snapshot:()Ljava/util/List;
            astore 12 /* speculations */
        24: .line 116
            iinc 9 /* expectedPhis */ 1
        25: .line 119
      StackMap locals:
      StackMap stack:
            aload 5 /* merge */
            invokevirtual org.graalvm.compiler.nodes.AbstractMergeNode.phis:()Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.count:()I
            iload 9 /* expectedPhis */
            if_icmpeq 27
        26: .line 120
            return
        27: .line 123
      StackMap locals:
      StackMap stack:
            iconst_0
            istore 13 /* index */
        start local 13 // int index
        28: .line 124
            aload 5 /* merge */
            invokevirtual org.graalvm.compiler.nodes.AbstractMergeNode.cfgPredecessors:()Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.snapshot:()Ljava/util/List;
            invokeinterface java.util.List.iterator:()Ljava/util/Iterator;
            astore 15
            goto 40
      StackMap locals: jdk.vm.ci.meta.MetaAccessProvider org.graalvm.compiler.nodes.DynamicDeoptimizeNode long org.graalvm.compiler.graph.Node org.graalvm.compiler.nodes.AbstractMergeNode org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValuePhiNode java.util.List int org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValuePhiNode java.util.List int top java.util.Iterator
      StackMap stack:
        29: aload 15
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.graalvm.compiler.nodes.AbstractEndNode
            astore 14 /* end */
        start local 14 // org.graalvm.compiler.nodes.AbstractEndNode end
        30: .line 125
            aload 8 /* reasons */
            ifnull 31
            aload 8 /* reasons */
            iload 13 /* index */
            invokeinterface java.util.List.get:(I)Ljava/lang/Object;
            checkcast org.graalvm.compiler.nodes.ValueNode
            goto 32
      StackMap locals: jdk.vm.ci.meta.MetaAccessProvider org.graalvm.compiler.nodes.DynamicDeoptimizeNode long org.graalvm.compiler.graph.Node org.graalvm.compiler.nodes.AbstractMergeNode org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValuePhiNode java.util.List int org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValuePhiNode java.util.List int org.graalvm.compiler.nodes.AbstractEndNode java.util.Iterator
      StackMap stack:
        31: aload 6 /* reason */
      StackMap locals:
      StackMap stack: org.graalvm.compiler.nodes.ValueNode
        32: astore 16 /* thisReason */
        start local 16 // org.graalvm.compiler.nodes.ValueNode thisReason
        33: .line 126
            aload 12 /* speculations */
            ifnull 34
            aload 12 /* speculations */
            iload 13 /* index */
            iinc 13 /* index */ 1
            invokeinterface java.util.List.get:(I)Ljava/lang/Object;
            checkcast org.graalvm.compiler.nodes.ValueNode
            goto 35
      StackMap locals: org.graalvm.compiler.nodes.ValueNode
      StackMap stack:
        34: aload 10 /* speculation */
      StackMap locals:
      StackMap stack: org.graalvm.compiler.nodes.ValueNode
        35: astore 17 /* thisSpeculation */
        start local 17 // org.graalvm.compiler.nodes.ValueNode thisSpeculation
        36: .line 127
            aload 16 /* thisReason */
            invokevirtual org.graalvm.compiler.nodes.ValueNode.isConstant:()Z
            ifeq 40
            aload 17 /* thisSpeculation */
            invokevirtual org.graalvm.compiler.nodes.ValueNode.isConstant:()Z
            ifeq 40
            aload 17 /* thisSpeculation */
            invokevirtual org.graalvm.compiler.nodes.ValueNode.asConstant:()Ljdk/vm/ci/meta/Constant;
            getstatic jdk.vm.ci.meta.JavaConstant.NULL_POINTER:Ljdk/vm/ci/meta/JavaConstant;
            invokevirtual java.lang.Object.equals:(Ljava/lang/Object;)Z
            ifne 38
        37: .line 128
            goto 40
        38: .line 130
      StackMap locals: org.graalvm.compiler.nodes.ValueNode
      StackMap stack:
            aload 0 /* metaAccessProvider */
            aload 16 /* thisReason */
            invokevirtual org.graalvm.compiler.nodes.ValueNode.asJavaConstant:()Ljdk/vm/ci/meta/JavaConstant;
            invokeinterface jdk.vm.ci.meta.MetaAccessProvider.decodeDeoptReason:(Ljdk/vm/ci/meta/JavaConstant;)Ljdk/vm/ci/meta/DeoptimizationReason;
            astore 18 /* deoptimizationReason */
        start local 18 // jdk.vm.ci.meta.DeoptimizationReason deoptimizationReason
        39: .line 131
            aload 1 /* deopt */
            aload 14 /* end */
            invokevirtual org.graalvm.compiler.nodes.AbstractEndNode.predecessor:()Lorg/graalvm/compiler/graph/Node;
            aload 18 /* deoptimizationReason */
            aconst_null
            lload 2 /* implicitNullCheckLimit */
            invokestatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.tryUseTrappingNullCheck:(Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;Lorg/graalvm/compiler/graph/Node;Ljdk/vm/ci/meta/DeoptimizationReason;Ljdk/vm/ci/meta/JavaConstant;J)V
        end local 18 // jdk.vm.ci.meta.DeoptimizationReason deoptimizationReason
        end local 17 // org.graalvm.compiler.nodes.ValueNode thisSpeculation
        end local 16 // org.graalvm.compiler.nodes.ValueNode thisReason
        end local 14 // org.graalvm.compiler.nodes.AbstractEndNode end
        40: .line 124
      StackMap locals: jdk.vm.ci.meta.MetaAccessProvider org.graalvm.compiler.nodes.DynamicDeoptimizeNode long org.graalvm.compiler.graph.Node org.graalvm.compiler.nodes.AbstractMergeNode org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValuePhiNode java.util.List int org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValuePhiNode java.util.List int top java.util.Iterator
      StackMap stack:
            aload 15
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 29
        end local 13 // int index
        end local 12 // java.util.List speculations
        end local 11 // org.graalvm.compiler.nodes.ValuePhiNode speculationPhi
        end local 10 // org.graalvm.compiler.nodes.ValueNode speculation
        end local 9 // int expectedPhis
        end local 8 // java.util.List reasons
        end local 7 // org.graalvm.compiler.nodes.ValuePhiNode reasonPhi
        end local 6 // org.graalvm.compiler.nodes.ValueNode reason
        end local 5 // org.graalvm.compiler.nodes.AbstractMergeNode merge
        41: .line 134
      StackMap locals: jdk.vm.ci.meta.MetaAccessProvider org.graalvm.compiler.nodes.DynamicDeoptimizeNode long org.graalvm.compiler.graph.Node
      StackMap stack:
            return
        end local 4 // org.graalvm.compiler.graph.Node predecessor
        end local 2 // long implicitNullCheckLimit
        end local 1 // org.graalvm.compiler.nodes.DynamicDeoptimizeNode deopt
        end local 0 // jdk.vm.ci.meta.MetaAccessProvider metaAccessProvider
      LocalVariableTable:
        Start  End  Slot                    Name  Signature
            0   42     0      metaAccessProvider  Ljdk/vm/ci/meta/MetaAccessProvider;
            0   42     1                   deopt  Lorg/graalvm/compiler/nodes/DynamicDeoptimizeNode;
            0   42     2  implicitNullCheckLimit  J
            1   42     4             predecessor  Lorg/graalvm/compiler/graph/Node;
            3   41     5                   merge  Lorg/graalvm/compiler/nodes/AbstractMergeNode;
            4   41     6                  reason  Lorg/graalvm/compiler/nodes/ValueNode;
            5   41     7               reasonPhi  Lorg/graalvm/compiler/nodes/ValuePhiNode;
            6   41     8                 reasons  Ljava/util/List<Lorg/graalvm/compiler/nodes/ValueNode;>;
            7   41     9            expectedPhis  I
           17   41    10             speculation  Lorg/graalvm/compiler/nodes/ValueNode;
           18   41    11          speculationPhi  Lorg/graalvm/compiler/nodes/ValuePhiNode;
           19   41    12            speculations  Ljava/util/List<Lorg/graalvm/compiler/nodes/ValueNode;>;
           28   41    13                   index  I
           30   40    14                     end  Lorg/graalvm/compiler/nodes/AbstractEndNode;
           33   40    16              thisReason  Lorg/graalvm/compiler/nodes/ValueNode;
           36   40    17         thisSpeculation  Lorg/graalvm/compiler/nodes/ValueNode;
           39   40    18    deoptimizationReason  Ljdk/vm/ci/meta/DeoptimizationReason;
    MethodParameters:
                        Name  Flags
      metaAccessProvider      
      deopt                   
      implicitNullCheckLimit  

  private static void tryUseTrappingNullCheck(org.graalvm.compiler.nodes.AbstractDeoptimizeNode, org.graalvm.compiler.graph.Node, jdk.vm.ci.meta.DeoptimizationReason, jdk.vm.ci.meta.JavaConstant, long);
    descriptor: (Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;Lorg/graalvm/compiler/graph/Node;Ljdk/vm/ci/meta/DeoptimizationReason;Ljdk/vm/ci/meta/JavaConstant;J)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=5, locals=9, args_size=5
        start local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode deopt
        start local 1 // org.graalvm.compiler.graph.Node predecessor
        start local 2 // jdk.vm.ci.meta.DeoptimizationReason deoptimizationReason
        start local 3 // jdk.vm.ci.meta.JavaConstant speculation
        start local 4 // long implicitNullCheckLimit
         0: .line 137
            aload 2 /* deoptimizationReason */
            getstatic jdk.vm.ci.meta.DeoptimizationReason.NullCheckException:Ljdk/vm/ci/meta/DeoptimizationReason;
            if_acmpeq 2
            aload 2 /* deoptimizationReason */
            getstatic jdk.vm.ci.meta.DeoptimizationReason.UnreachedCode:Ljdk/vm/ci/meta/DeoptimizationReason;
            if_acmpeq 2
         1: .line 138
            return
         2: .line 140
      StackMap locals:
      StackMap stack:
            aload 3 /* speculation */
            ifnull 4
            aload 3 /* speculation */
            getstatic jdk.vm.ci.meta.JavaConstant.NULL_POINTER:Ljdk/vm/ci/meta/JavaConstant;
            invokevirtual java.lang.Object.equals:(Ljava/lang/Object;)Z
            ifne 4
         3: .line 141
            return
         4: .line 143
      StackMap locals:
      StackMap stack:
            aload 1 /* predecessor */
            instanceof org.graalvm.compiler.nodes.AbstractMergeNode
            ifeq 12
         5: .line 144
            aload 1 /* predecessor */
            checkcast org.graalvm.compiler.nodes.AbstractMergeNode
            astore 6 /* merge */
        start local 6 // org.graalvm.compiler.nodes.AbstractMergeNode merge
         6: .line 145
            aload 6 /* merge */
            invokevirtual org.graalvm.compiler.nodes.AbstractMergeNode.phis:()Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.isEmpty:()Z
            ifeq 14
         7: .line 146
            aload 6 /* merge */
            invokevirtual org.graalvm.compiler.nodes.AbstractMergeNode.cfgPredecessors:()Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.snapshot:()Ljava/util/List;
            invokeinterface java.util.List.iterator:()Ljava/util/Iterator;
            astore 8
            goto 10
      StackMap locals: org.graalvm.compiler.nodes.AbstractDeoptimizeNode org.graalvm.compiler.graph.Node jdk.vm.ci.meta.DeoptimizationReason jdk.vm.ci.meta.JavaConstant long org.graalvm.compiler.nodes.AbstractMergeNode top java.util.Iterator
      StackMap stack:
         8: aload 8
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.graalvm.compiler.nodes.AbstractEndNode
            astore 7 /* end */
        start local 7 // org.graalvm.compiler.nodes.AbstractEndNode end
         9: .line 147
            aload 0 /* deopt */
            aload 7 /* end */
            invokevirtual org.graalvm.compiler.nodes.AbstractEndNode.predecessor:()Lorg/graalvm/compiler/graph/Node;
            aload 2 /* deoptimizationReason */
            lload 4 /* implicitNullCheckLimit */
            invokestatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.checkPredecessor:(Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;Lorg/graalvm/compiler/graph/Node;Ljdk/vm/ci/meta/DeoptimizationReason;J)V
        end local 7 // org.graalvm.compiler.nodes.AbstractEndNode end
        10: .line 146
      StackMap locals:
      StackMap stack:
            aload 8
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 8
        end local 6 // org.graalvm.compiler.nodes.AbstractMergeNode merge
        11: .line 150
            goto 14
      StackMap locals: org.graalvm.compiler.nodes.AbstractDeoptimizeNode org.graalvm.compiler.graph.Node jdk.vm.ci.meta.DeoptimizationReason jdk.vm.ci.meta.JavaConstant long
      StackMap stack:
        12: aload 1 /* predecessor */
            instanceof org.graalvm.compiler.nodes.AbstractBeginNode
            ifeq 14
        13: .line 151
            aload 0 /* deopt */
            aload 1 /* predecessor */
            aload 2 /* deoptimizationReason */
            lload 4 /* implicitNullCheckLimit */
            invokestatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.checkPredecessor:(Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;Lorg/graalvm/compiler/graph/Node;Ljdk/vm/ci/meta/DeoptimizationReason;J)V
        14: .line 153
      StackMap locals:
      StackMap stack:
            return
        end local 4 // long implicitNullCheckLimit
        end local 3 // jdk.vm.ci.meta.JavaConstant speculation
        end local 2 // jdk.vm.ci.meta.DeoptimizationReason deoptimizationReason
        end local 1 // org.graalvm.compiler.graph.Node predecessor
        end local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode deopt
      LocalVariableTable:
        Start  End  Slot                    Name  Signature
            0   15     0                   deopt  Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;
            0   15     1             predecessor  Lorg/graalvm/compiler/graph/Node;
            0   15     2    deoptimizationReason  Ljdk/vm/ci/meta/DeoptimizationReason;
            0   15     3             speculation  Ljdk/vm/ci/meta/JavaConstant;
            0   15     4  implicitNullCheckLimit  J
            6   11     6                   merge  Lorg/graalvm/compiler/nodes/AbstractMergeNode;
            9   10     7                     end  Lorg/graalvm/compiler/nodes/AbstractEndNode;
    MethodParameters:
                        Name  Flags
      deopt                   
      predecessor             
      deoptimizationReason    
      speculation             
      implicitNullCheckLimit  

  private static void checkPredecessor(org.graalvm.compiler.nodes.AbstractDeoptimizeNode, org.graalvm.compiler.graph.Node, jdk.vm.ci.meta.DeoptimizationReason, long);
    descriptor: (Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;Lorg/graalvm/compiler/graph/Node;Ljdk/vm/ci/meta/DeoptimizationReason;J)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=6, locals=9, args_size=4
        start local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode deopt
        start local 1 // org.graalvm.compiler.graph.Node predecessor
        start local 2 // jdk.vm.ci.meta.DeoptimizationReason deoptimizationReason
        start local 3 // long implicitNullCheckLimit
         0: .line 156
            aload 1 /* predecessor */
            astore 5 /* current */
        start local 5 // org.graalvm.compiler.graph.Node current
         1: .line 157
            aconst_null
            astore 6 /* branch */
        start local 6 // org.graalvm.compiler.nodes.AbstractBeginNode branch
         2: .line 158
            goto 7
         3: .line 159
      StackMap locals: org.graalvm.compiler.graph.Node org.graalvm.compiler.nodes.AbstractBeginNode
      StackMap stack:
            aload 5 /* current */
            checkcast org.graalvm.compiler.nodes.AbstractBeginNode
            astore 6 /* branch */
         4: .line 160
            aload 6 /* branch */
            invokevirtual org.graalvm.compiler.nodes.AbstractBeginNode.anchored:()Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.isNotEmpty:()Z
            ifeq 6
         5: .line 162
            return
         6: .line 164
      StackMap locals:
      StackMap stack:
            aload 5 /* current */
            invokevirtual org.graalvm.compiler.graph.Node.predecessor:()Lorg/graalvm/compiler/graph/Node;
            astore 5 /* current */
         7: .line 158
      StackMap locals:
      StackMap stack:
            aload 5 /* current */
            instanceof org.graalvm.compiler.nodes.AbstractBeginNode
            ifne 3
         8: .line 166
            aload 5 /* current */
            instanceof org.graalvm.compiler.nodes.IfNode
            ifeq 15
         9: .line 167
            aload 5 /* current */
            checkcast org.graalvm.compiler.nodes.IfNode
            astore 7 /* ifNode */
        start local 7 // org.graalvm.compiler.nodes.IfNode ifNode
        10: .line 168
            aload 6 /* branch */
            aload 7 /* ifNode */
            invokevirtual org.graalvm.compiler.nodes.IfNode.trueSuccessor:()Lorg/graalvm/compiler/nodes/AbstractBeginNode;
            if_acmpeq 12
        11: .line 169
            return
        12: .line 171
      StackMap locals: org.graalvm.compiler.nodes.IfNode
      StackMap stack:
            aload 7 /* ifNode */
            invokevirtual org.graalvm.compiler.nodes.IfNode.condition:()Lorg/graalvm/compiler/nodes/LogicNode;
            astore 8 /* condition */
        start local 8 // org.graalvm.compiler.nodes.LogicNode condition
        13: .line 172
            aload 8 /* condition */
            instanceof org.graalvm.compiler.nodes.calc.IsNullNode
            ifeq 15
        14: .line 173
            aload 0 /* deopt */
            aload 7 /* ifNode */
            aload 8 /* condition */
            aload 2 /* deoptimizationReason */
            lload 3 /* implicitNullCheckLimit */
            invokestatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.replaceWithTrappingNullCheck:(Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;Lorg/graalvm/compiler/nodes/IfNode;Lorg/graalvm/compiler/nodes/LogicNode;Ljdk/vm/ci/meta/DeoptimizationReason;J)V
        end local 8 // org.graalvm.compiler.nodes.LogicNode condition
        end local 7 // org.graalvm.compiler.nodes.IfNode ifNode
        15: .line 176
      StackMap locals:
      StackMap stack:
            return
        end local 6 // org.graalvm.compiler.nodes.AbstractBeginNode branch
        end local 5 // org.graalvm.compiler.graph.Node current
        end local 3 // long implicitNullCheckLimit
        end local 2 // jdk.vm.ci.meta.DeoptimizationReason deoptimizationReason
        end local 1 // org.graalvm.compiler.graph.Node predecessor
        end local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode deopt
      LocalVariableTable:
        Start  End  Slot                    Name  Signature
            0   16     0                   deopt  Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;
            0   16     1             predecessor  Lorg/graalvm/compiler/graph/Node;
            0   16     2    deoptimizationReason  Ljdk/vm/ci/meta/DeoptimizationReason;
            0   16     3  implicitNullCheckLimit  J
            1   16     5                 current  Lorg/graalvm/compiler/graph/Node;
            2   16     6                  branch  Lorg/graalvm/compiler/nodes/AbstractBeginNode;
           10   15     7                  ifNode  Lorg/graalvm/compiler/nodes/IfNode;
           13   15     8               condition  Lorg/graalvm/compiler/nodes/LogicNode;
    MethodParameters:
                        Name  Flags
      deopt                   
      predecessor             
      deoptimizationReason    
      implicitNullCheckLimit  

  private static void replaceWithTrappingNullCheck(org.graalvm.compiler.nodes.AbstractDeoptimizeNode, org.graalvm.compiler.nodes.IfNode, org.graalvm.compiler.nodes.LogicNode, jdk.vm.ci.meta.DeoptimizationReason, long);
    descriptor: (Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;Lorg/graalvm/compiler/nodes/IfNode;Lorg/graalvm/compiler/nodes/LogicNode;Ljdk/vm/ci/meta/DeoptimizationReason;J)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=17, args_size=5
        start local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode deopt
        start local 1 // org.graalvm.compiler.nodes.IfNode ifNode
        start local 2 // org.graalvm.compiler.nodes.LogicNode condition
        start local 3 // jdk.vm.ci.meta.DeoptimizationReason deoptimizationReason
        start local 4 // long implicitNullCheckLimit
         0: .line 179
            aload 0 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.AbstractDeoptimizeNode.getDebug:()Lorg/graalvm/compiler/debug/DebugContext;
            astore 6 /* debug */
        start local 6 // org.graalvm.compiler.debug.DebugContext debug
         1: .line 180
            getstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.counterTrappingNullCheck:Lorg/graalvm/compiler/debug/CounterKey;
            aload 6 /* debug */
            invokeinterface org.graalvm.compiler.debug.CounterKey.increment:(Lorg/graalvm/compiler/debug/DebugContext;)V
         2: .line 181
            aload 0 /* deopt */
            instanceof org.graalvm.compiler.nodes.DynamicDeoptimizeNode
            ifeq 4
         3: .line 182
            getstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.counterTrappingNullCheckDynamicDeoptimize:Lorg/graalvm/compiler/debug/CounterKey;
            aload 6 /* debug */
            invokeinterface org.graalvm.compiler.debug.CounterKey.increment:(Lorg/graalvm/compiler/debug/DebugContext;)V
         4: .line 184
      StackMap locals: org.graalvm.compiler.debug.DebugContext
      StackMap stack:
            aload 3 /* deoptimizationReason */
            getstatic jdk.vm.ci.meta.DeoptimizationReason.UnreachedCode:Ljdk/vm/ci/meta/DeoptimizationReason;
            if_acmpne 6
         5: .line 185
            getstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.counterTrappingNullCheckUnreached:Lorg/graalvm/compiler/debug/CounterKey;
            aload 6 /* debug */
            invokeinterface org.graalvm.compiler.debug.CounterKey.increment:(Lorg/graalvm/compiler/debug/DebugContext;)V
         6: .line 187
      StackMap locals:
      StackMap stack:
            aload 2 /* condition */
            checkcast org.graalvm.compiler.nodes.calc.IsNullNode
            astore 7 /* isNullNode */
        start local 7 // org.graalvm.compiler.nodes.calc.IsNullNode isNullNode
         7: .line 188
            aload 1 /* ifNode */
            invokevirtual org.graalvm.compiler.nodes.IfNode.falseSuccessor:()Lorg/graalvm/compiler/nodes/AbstractBeginNode;
            astore 8 /* nonTrappingContinuation */
        start local 8 // org.graalvm.compiler.nodes.AbstractBeginNode nonTrappingContinuation
         8: .line 189
            aload 1 /* ifNode */
            invokevirtual org.graalvm.compiler.nodes.IfNode.trueSuccessor:()Lorg/graalvm/compiler/nodes/AbstractBeginNode;
            astore 9 /* trappingContinuation */
        start local 9 // org.graalvm.compiler.nodes.AbstractBeginNode trappingContinuation
         9: .line 191
            aconst_null
            astore 10 /* trappingNullCheck */
        start local 10 // org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode trappingNullCheck
        10: .line 192
            aload 8 /* nonTrappingContinuation */
            invokevirtual org.graalvm.compiler.nodes.AbstractBeginNode.next:()Lorg/graalvm/compiler/nodes/FixedNode;
            astore 11 /* nextNonTrapping */
        start local 11 // org.graalvm.compiler.nodes.FixedNode nextNonTrapping
        11: .line 193
            aload 7 /* isNullNode */
            invokevirtual org.graalvm.compiler.nodes.calc.IsNullNode.getValue:()Lorg/graalvm/compiler/nodes/ValueNode;
            astore 12 /* value */
        start local 12 // org.graalvm.compiler.nodes.ValueNode value
        12: .line 194
            getstatic org.graalvm.compiler.core.common.GraalOptions.OptImplicitNullChecks:Lorg/graalvm/compiler/options/OptionKey;
            aload 1 /* ifNode */
            invokevirtual org.graalvm.compiler.nodes.IfNode.graph:()Lorg/graalvm/compiler/nodes/StructuredGraph;
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph.getOptions:()Lorg/graalvm/compiler/options/OptionValues;
            invokevirtual org.graalvm.compiler.options.OptionKey.getValue:(Lorg/graalvm/compiler/options/OptionValues;)Ljava/lang/Object;
            checkcast java.lang.Boolean
            invokevirtual java.lang.Boolean.booleanValue:()Z
            ifeq 31
            lload 4 /* implicitNullCheckLimit */
            lconst_0
            lcmp
            ifle 31
        13: .line 195
            aload 11 /* nextNonTrapping */
            instanceof org.graalvm.compiler.nodes.memory.FixedAccessNode
            ifeq 31
        14: .line 196
            aload 11 /* nextNonTrapping */
            checkcast org.graalvm.compiler.nodes.memory.FixedAccessNode
            astore 13 /* fixedAccessNode */
        start local 13 // org.graalvm.compiler.nodes.memory.FixedAccessNode fixedAccessNode
        15: .line 197
            aload 13 /* fixedAccessNode */
            invokevirtual org.graalvm.compiler.nodes.memory.FixedAccessNode.canNullCheck:()Z
            ifeq 31
        16: .line 198
            aload 13 /* fixedAccessNode */
            invokevirtual org.graalvm.compiler.nodes.memory.FixedAccessNode.getAddress:()Lorg/graalvm/compiler/nodes/memory/address/AddressNode;
            astore 14 /* address */
        start local 14 // org.graalvm.compiler.nodes.memory.address.AddressNode address
        17: .line 199
            aload 14 /* address */
            invokevirtual org.graalvm.compiler.nodes.memory.address.AddressNode.getBase:()Lorg/graalvm/compiler/nodes/ValueNode;
            astore 15 /* base */
        start local 15 // org.graalvm.compiler.nodes.ValueNode base
        18: .line 200
            aload 14 /* address */
            invokevirtual org.graalvm.compiler.nodes.memory.address.AddressNode.getIndex:()Lorg/graalvm/compiler/nodes/ValueNode;
            astore 16 /* index */
        start local 16 // org.graalvm.compiler.nodes.ValueNode index
        19: .line 203
            aload 15 /* base */
            ifnull 21
            aload 15 /* base */
            instanceof org.graalvm.compiler.nodes.CompressionNode
            ifeq 21
        20: .line 204
            aload 15 /* base */
            checkcast org.graalvm.compiler.nodes.CompressionNode
            invokevirtual org.graalvm.compiler.nodes.CompressionNode.getValue:()Lorg/graalvm/compiler/nodes/ValueNode;
            astore 15 /* base */
        21: .line 206
      StackMap locals: org.graalvm.compiler.nodes.AbstractDeoptimizeNode org.graalvm.compiler.nodes.IfNode org.graalvm.compiler.nodes.LogicNode jdk.vm.ci.meta.DeoptimizationReason long org.graalvm.compiler.debug.DebugContext org.graalvm.compiler.nodes.calc.IsNullNode org.graalvm.compiler.nodes.AbstractBeginNode org.graalvm.compiler.nodes.AbstractBeginNode org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode org.graalvm.compiler.nodes.FixedNode org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.memory.FixedAccessNode org.graalvm.compiler.nodes.memory.address.AddressNode org.graalvm.compiler.nodes.ValueNode org.graalvm.compiler.nodes.ValueNode
      StackMap stack:
            aload 16 /* index */
            ifnull 23
            aload 16 /* index */
            instanceof org.graalvm.compiler.nodes.CompressionNode
            ifeq 23
        22: .line 207
            aload 16 /* index */
            checkcast org.graalvm.compiler.nodes.CompressionNode
            invokevirtual org.graalvm.compiler.nodes.CompressionNode.getValue:()Lorg/graalvm/compiler/nodes/ValueNode;
            astore 16 /* index */
        23: .line 209
      StackMap locals:
      StackMap stack:
            aload 15 /* base */
            aload 12 /* value */
            if_acmpne 24
            aload 16 /* index */
            ifnull 25
      StackMap locals:
      StackMap stack:
        24: aload 15 /* base */
            ifnonnull 31
            aload 16 /* index */
            aload 12 /* value */
            if_acmpne 31
      StackMap locals:
      StackMap stack:
        25: aload 14 /* address */
            invokevirtual org.graalvm.compiler.nodes.memory.address.AddressNode.getMaxConstantDisplacement:()J
            lload 4 /* implicitNullCheckLimit */
            lcmp
            ifge 31
        26: .line 211
            aload 13 /* fixedAccessNode */
            aload 0 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.AbstractDeoptimizeNode.stateBefore:()Lorg/graalvm/compiler/nodes/FrameState;
            invokevirtual org.graalvm.compiler.nodes.memory.FixedAccessNode.setStateBefore:(Lorg/graalvm/compiler/nodes/FrameState;)V
        27: .line 212
            aload 13 /* fixedAccessNode */
            iconst_1
            invokevirtual org.graalvm.compiler.nodes.memory.FixedAccessNode.setNullCheck:(Z)V
        28: .line 213
            aload 0 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.AbstractDeoptimizeNode.graph:()Lorg/graalvm/compiler/nodes/StructuredGraph;
            aload 1 /* ifNode */
            aload 8 /* nonTrappingContinuation */
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph.removeSplit:(Lorg/graalvm/compiler/nodes/ControlSplitNode;Lorg/graalvm/compiler/nodes/AbstractBeginNode;)V
        29: .line 214
            aload 13 /* fixedAccessNode */
            astore 10 /* trappingNullCheck */
        30: .line 215
            getstatic org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.counterTrappingNullCheckExistingRead:Lorg/graalvm/compiler/debug/CounterKey;
            aload 6 /* debug */
            invokeinterface org.graalvm.compiler.debug.CounterKey.increment:(Lorg/graalvm/compiler/debug/DebugContext;)V
        end local 16 // org.graalvm.compiler.nodes.ValueNode index
        end local 15 // org.graalvm.compiler.nodes.ValueNode base
        end local 14 // org.graalvm.compiler.nodes.memory.address.AddressNode address
        end local 13 // org.graalvm.compiler.nodes.memory.FixedAccessNode fixedAccessNode
        31: .line 221
      StackMap locals: org.graalvm.compiler.nodes.AbstractDeoptimizeNode org.graalvm.compiler.nodes.IfNode org.graalvm.compiler.nodes.LogicNode jdk.vm.ci.meta.DeoptimizationReason long org.graalvm.compiler.debug.DebugContext org.graalvm.compiler.nodes.calc.IsNullNode org.graalvm.compiler.nodes.AbstractBeginNode org.graalvm.compiler.nodes.AbstractBeginNode org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode org.graalvm.compiler.nodes.FixedNode org.graalvm.compiler.nodes.ValueNode
      StackMap stack:
            aload 10 /* trappingNullCheck */
            ifnonnull 34
        32: .line 223
            aload 0 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.AbstractDeoptimizeNode.graph:()Lorg/graalvm/compiler/nodes/StructuredGraph;
            new org.graalvm.compiler.nodes.extended.NullCheckNode
            dup
            aload 12 /* value */
            invokespecial org.graalvm.compiler.nodes.extended.NullCheckNode.<init>:(Lorg/graalvm/compiler/nodes/ValueNode;)V
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph.add:(Lorg/graalvm/compiler/graph/Node;)Lorg/graalvm/compiler/graph/Node;
            checkcast org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode
            astore 10 /* trappingNullCheck */
        33: .line 224
            aload 0 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.AbstractDeoptimizeNode.graph:()Lorg/graalvm/compiler/nodes/StructuredGraph;
            aload 1 /* ifNode */
            aload 10 /* trappingNullCheck */
            aload 8 /* nonTrappingContinuation */
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph.replaceSplit:(Lorg/graalvm/compiler/nodes/ControlSplitNode;Lorg/graalvm/compiler/graph/Node;Lorg/graalvm/compiler/nodes/AbstractBeginNode;)V
        34: .line 227
      StackMap locals:
      StackMap stack:
            aload 10 /* trappingNullCheck */
            aload 0 /* deopt */
            invokevirtual org.graalvm.compiler.nodes.AbstractDeoptimizeNode.stateBefore:()Lorg/graalvm/compiler/nodes/FrameState;
            invokevirtual org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode.setStateBefore:(Lorg/graalvm/compiler/nodes/FrameState;)V
        35: .line 234
            aload 8 /* nonTrappingContinuation */
            getstatic org.graalvm.compiler.nodeinfo.InputType.Guard:Lorg/graalvm/compiler/nodeinfo/InputType;
            aload 10 /* trappingNullCheck */
            invokevirtual org.graalvm.compiler.nodes.AbstractBeginNode.replaceAtUsages:(Lorg/graalvm/compiler/nodeinfo/InputType;Lorg/graalvm/compiler/graph/Node;)V
        36: .line 236
            aload 8 /* nonTrappingContinuation */
            instanceof org.graalvm.compiler.nodes.BeginNode
            ifeq 39
        37: .line 237
            aload 8 /* nonTrappingContinuation */
            invokestatic org.graalvm.compiler.nodes.util.GraphUtil.unlinkFixedNode:(Lorg/graalvm/compiler/nodes/FixedWithNextNode;)V
        38: .line 238
            aload 8 /* nonTrappingContinuation */
            invokevirtual org.graalvm.compiler.nodes.AbstractBeginNode.safeDelete:()V
        39: .line 241
      StackMap locals:
      StackMap stack:
            aload 9 /* trappingContinuation */
            invokestatic org.graalvm.compiler.nodes.util.GraphUtil.killCFG:(Lorg/graalvm/compiler/nodes/FixedNode;)V
        40: .line 242
            aload 7 /* isNullNode */
            invokestatic org.graalvm.compiler.nodes.util.GraphUtil.tryKillUnused:(Lorg/graalvm/compiler/graph/Node;)Z
            pop
        41: .line 243
            return
        end local 12 // org.graalvm.compiler.nodes.ValueNode value
        end local 11 // org.graalvm.compiler.nodes.FixedNode nextNonTrapping
        end local 10 // org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode trappingNullCheck
        end local 9 // org.graalvm.compiler.nodes.AbstractBeginNode trappingContinuation
        end local 8 // org.graalvm.compiler.nodes.AbstractBeginNode nonTrappingContinuation
        end local 7 // org.graalvm.compiler.nodes.calc.IsNullNode isNullNode
        end local 6 // org.graalvm.compiler.debug.DebugContext debug
        end local 4 // long implicitNullCheckLimit
        end local 3 // jdk.vm.ci.meta.DeoptimizationReason deoptimizationReason
        end local 2 // org.graalvm.compiler.nodes.LogicNode condition
        end local 1 // org.graalvm.compiler.nodes.IfNode ifNode
        end local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode deopt
      LocalVariableTable:
        Start  End  Slot                     Name  Signature
            0   42     0                    deopt  Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;
            0   42     1                   ifNode  Lorg/graalvm/compiler/nodes/IfNode;
            0   42     2                condition  Lorg/graalvm/compiler/nodes/LogicNode;
            0   42     3     deoptimizationReason  Ljdk/vm/ci/meta/DeoptimizationReason;
            0   42     4   implicitNullCheckLimit  J
            1   42     6                    debug  Lorg/graalvm/compiler/debug/DebugContext;
            7   42     7               isNullNode  Lorg/graalvm/compiler/nodes/calc/IsNullNode;
            8   42     8  nonTrappingContinuation  Lorg/graalvm/compiler/nodes/AbstractBeginNode;
            9   42     9     trappingContinuation  Lorg/graalvm/compiler/nodes/AbstractBeginNode;
           10   42    10        trappingNullCheck  Lorg/graalvm/compiler/nodes/DeoptimizingFixedWithNextNode;
           11   42    11          nextNonTrapping  Lorg/graalvm/compiler/nodes/FixedNode;
           12   42    12                    value  Lorg/graalvm/compiler/nodes/ValueNode;
           15   31    13          fixedAccessNode  Lorg/graalvm/compiler/nodes/memory/FixedAccessNode;
           17   31    14                  address  Lorg/graalvm/compiler/nodes/memory/address/AddressNode;
           18   31    15                     base  Lorg/graalvm/compiler/nodes/ValueNode;
           19   31    16                    index  Lorg/graalvm/compiler/nodes/ValueNode;
    MethodParameters:
                        Name  Flags
      deopt                   
      ifNode                  
      condition               
      deoptimizationReason    
      implicitNullCheckLimit  

  protected void run(org.graalvm.compiler.nodes.StructuredGraph, java.lang.Object);
    descriptor: (Lorg/graalvm/compiler/nodes/StructuredGraph;Ljava/lang/Object;)V
    flags: (0x1044) ACC_PROTECTED, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=3, locals=3, args_size=3
         0: .line 1
            aload 0
            aload 1
            aload 2
            checkcast org.graalvm.compiler.phases.tiers.LowTierContext
            invokevirtual org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase.run:(Lorg/graalvm/compiler/nodes/StructuredGraph;Lorg/graalvm/compiler/phases/tiers/LowTierContext;)V
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Lorg/graalvm/compiler/phases/BasePhase<Lorg/graalvm/compiler/phases/tiers/LowTierContext;>;
SourceFile: "UseTrappingNullChecksPhase.java"
InnerClasses:
  public final GuardsStage = org.graalvm.compiler.nodes.StructuredGraph$GuardsStage of org.graalvm.compiler.nodes.StructuredGraph
/

java/ 10/ jdk.internal.vm.compiler/org/graalvm/compiler/phases/common/UseTrappingNullChecksPhase.class
