scala.tools.nsc.backend.opt.DeadCodeElimination

# DeadCode

#### class DeadCode extends AnyRef

Remove dead code.

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Inherited

1. DeadCode
2. AnyRef
3. Any

Implicitly

1. by any2stringadd
2. by any2stringfmt
3. by any2ArrowAssoc
4. by any2Ensuring

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### Instance Constructors

1. #### new DeadCode()

### Value Members

1. #### final def !=(arg0: AnyRef): Boolean

   Definition Classes
     AnyRef

2. #### final def !=(arg0: Any): Boolean

   Definition Classes
     Any

3. #### final def ##(): Int

   Definition Classes
     AnyRef → Any

4. #### def +(other: String): String

   Implicit information
     This member is added by an implicit conversion from DeadCode to StringAdd performed by method any2stringadd in scala.Predef.
   Definition Classes
     StringAdd

5. #### def ->[B](y: B): (DeadCode, B)

   Implicit information
     This member is added by an implicit conversion from DeadCode to ArrowAssoc[DeadCode] performed by method any2ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()

6. #### final def ==(arg0: AnyRef): Boolean

   Definition Classes
     AnyRef

7. #### final def ==(arg0: Any): Boolean

   Definition Classes
     Any

8. #### var accessedLocals: List[Global.icodes.Local]

   what local variables have been accessed at least once?

9. #### def analyzeClass(cls: Global.icodes.IClass): Unit

10. #### final def asInstanceOf[T0]: T0

    Definition Classes
      Any

11. #### val clobbers: Set[(Global.icodes.BasicBlock, Int)]

    Stores that clobber previous stores to array or ref locals.

    Stores that clobber previous stores to array or ref locals. See SI-5313

12. #### def clone(): AnyRef

    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

13. #### def collectRDef(m: Global.icodes.IMethod): Unit

    collect reaching definitions and initial useful instructions for this method.

14. #### var defs: Map[(Global.icodes.BasicBlock, Int), Set[(Global.icodes.Local, Global.icodes.BasicBlock, Int)]]

    Use-def chain: give the reaching definitions at the beginning of given instruction.

15. #### def dieCodeDie(m: Global.icodes.IMethod): Unit

16. #### val dropOf: Map[(Global.icodes.BasicBlock, Int), List[(Global.icodes.BasicBlock, Int)]]

    Map instructions who have a drop on some control path, to that DROP instruction.

17. #### def ensuring(cond: (DeadCode) ⇒ Boolean, msg: ⇒ Any): DeadCode

    Implicit information
      This member is added by an implicit conversion from DeadCode to Ensuring[DeadCode] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

18. #### def ensuring(cond: (DeadCode) ⇒ Boolean): DeadCode

    Implicit information
      This member is added by an implicit conversion from DeadCode to Ensuring[DeadCode] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

19. #### def ensuring(cond: Boolean, msg: ⇒ Any): DeadCode

    Implicit information
      This member is added by an implicit conversion from DeadCode to Ensuring[DeadCode] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

20. #### def ensuring(cond: Boolean): DeadCode

    Implicit information
      This member is added by an implicit conversion from DeadCode to Ensuring[DeadCode] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

21. #### final def eq(arg0: AnyRef): Boolean

    Definition Classes
      AnyRef

22. #### def equals(arg0: Any): Boolean

    Definition Classes
      AnyRef → Any

23. #### def finalize(): Unit

    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )

24. #### def findClobbers(l: Global.icodes.Local, bb: Global.icodes.BasicBlock, idx: Int): Unit

    Finds and marks all clobbers of the given local starting in the given basic block at the given index

    Finds and marks all clobbers of the given local starting in the given basic block at the given index

    Storing to local variables of reference or array type may be indirectly observable because it may remove a reference to an object which may allow the object to be gc'd. See SI-5313. In this code I call the LOCAL_STORE(s) that immediately follow a LOCAL_STORE and that store to the same local "clobbers." If a LOCAL_STORE is marked useful then its clobbers must go into the set of clobbers, which will be compensated for later

25. #### def formatted(fmtstr: String): String

    Implicit information
      This member is added by an implicit conversion from DeadCode to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()

26. #### final def getClass(): Class[_]

    Definition Classes
      AnyRef → Any

27. #### def hashCode(): Int

    Definition Classes
      AnyRef → Any

28. #### final def isInstanceOf[T0]: Boolean

    Definition Classes
      Any

29. #### val localStores: Map[(Global.icodes.Local, Global.icodes.BasicBlock), BitSet]

    Map from a local and a basic block to the instructions that store to that local in that basic block

30. #### def mark(): Unit

    Mark useful instructions.

    Mark useful instructions. Instructions in the worklist are each inspected and their dependencies are marked useful too, and added to the worklist.

31. #### var method: Global.icodes.IMethod

    the current method.

32. #### final def ne(arg0: AnyRef): Boolean

    Definition Classes
      AnyRef

33. #### final def notify(): Unit

    Definition Classes
      AnyRef

34. #### final def notifyAll(): Unit

    Definition Classes
      AnyRef

35. #### val rdef: icode.ICodes.reachingDefinitions.ReachingDefinitionsAnalysis

36. #### def sweep(m: Global.icodes.IMethod): Unit

37. #### final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
      AnyRef

38. #### def toString(): String

    Definition Classes
      AnyRef → Any

39. #### val useful: Map[Global.icodes.BasicBlock, BitSet]

    what instructions have been marked as useful?

40. #### final def wait(): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

41. #### final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

42. #### final def wait(arg0: Long): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

43. #### val worklist: Set[(Global.icodes.BasicBlock, Int)]

    Useful instructions which have not been scanned yet.

44. #### def →[B](y: B): (DeadCode, B)

    Implicit information
      This member is added by an implicit conversion from DeadCode to ArrowAssoc[DeadCode] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Shadowed Implicit Value Members

1. #### val self: Any

   Implicit information
     This member is added by an implicit conversion from DeadCode to StringAdd performed by method any2stringadd in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (deadCode: StringAdd).self

   Definition Classes
     StringAdd

2. #### val self: Any

   Implicit information
     This member is added by an implicit conversion from DeadCode to StringFormat performed by method any2stringfmt in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (deadCode: StringFormat).self

   Definition Classes
     StringFormat

### Deprecated Value Members

1. #### def x: DeadCode

   Implicit information
     This member is added by an implicit conversion from DeadCode to ArrowAssoc[DeadCode] performed by method any2ArrowAssoc in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (deadCode: ArrowAssoc[DeadCode]).x

   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.10.0) Use `leftOfArrow`instead``

2. #### def x: DeadCode

   Implicit information
     This member is added by an implicit conversion from DeadCode to Ensuring[DeadCode] performed by method any2Ensuring in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (deadCode: Ensuring[DeadCode]).x

   Definition Classes
     Ensuring
   Annotations
     @deprecated
   Deprecated

     (Since version 2.10.0) Use `resultOfEnsuring`instead``

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from DeadCode to StringAdd

### Inherited by implicit conversion any2stringfmt from DeadCode to StringFormat

### Inherited by implicit conversion any2ArrowAssoc from DeadCode to ArrowAssoc[DeadCode]

### Inherited by implicit conversion any2Ensuring from DeadCode to Ensuring[DeadCode]

### Ungrouped