scala.tools.nsc.backend.opt

# DeadCodeElimination

#### abstract class DeadCodeElimination extends SubComponent

Source
  DeadCodeElimination.scala

Linear Supertypes
SubComponent, AnyRef, Any
Known Subclasses
deadCode
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Inherited

1. DeadCodeElimination
2. SubComponent
3. AnyRef
4. Any

Implicitly

1. by any2stringadd
2. by StringFormat
3. by Ensuring
4. by ArrowAssoc

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### Instance Constructors

1. #### new DeadCodeElimination()

### Type Members

1. #### class DeadCode extends AnyRef

   Remove dead code.

2. #### class DeadCodeEliminationPhase extends Global.icodes.ICodePhase

   Dead code elimination phase.

3. #### type InstrLoc = (Global.icodes.BasicBlock, Int)

   The block and index where an instruction is located

4. #### abstract class StdPhase extends GlobalPhase

   A standard phase template

   A standard phase template

   Definition Classes
     SubComponent

### Abstract Value Members

1. #### abstract val global: Global

   The global environment; overridden by instantiation in Global.

   The global environment; overridden by instantiation in Global.

   Definition Classes
     SubComponent

2. #### abstract val runsAfter: List[String]

   Names of phases that must run before this phase.

   Names of phases that must run before this phase.

   Definition Classes
     SubComponent

3. #### abstract val runsRightAfter: Option[String]

   Name of the phase that this phase must follow immediately.

   Name of the phase that this phase must follow immediately.

   Definition Classes
     SubComponent

### Concrete Value Members

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

   Definition Classes
     AnyRef → Any

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

   Definition Classes
     AnyRef → Any

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

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

4. #### def ->[B](y: B): (DeadCodeElimination, B)

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

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

   Definition Classes
     AnyRef → Any

6. #### final def afterOwnPhase[T](op: ⇒ T): T

   Definition Classes
     SubComponent
   Annotations
     @inline()

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

   Definition Classes
     Any

8. #### final def beforeOwnPhase[T](op: ⇒ T): T

   Definition Classes
     SubComponent
   Annotations
     @inline()

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

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

10. #### val elidedClosures: HashSet[Global.Symbol]

    closures that are eliminated, populated by GenASM.AsmPhase.run() these class symbols won't have a .class physical file, thus shouldn't be included in InnerClasses JVM attribute, otherwise some tools get confused or slow (SI-6546)

11. #### val enabled: Boolean

    Is this component enabled? Default is true.

    Is this component enabled? Default is true.

    Definition Classes
      DeadCodeElimination → SubComponent

12. #### def ensuring(cond: (DeadCodeElimination) ⇒ Boolean, msg: ⇒ Any): DeadCodeElimination

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

13. #### def ensuring(cond: (DeadCodeElimination) ⇒ Boolean): DeadCodeElimination

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

14. #### def ensuring(cond: Boolean, msg: ⇒ Any): DeadCodeElimination

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

15. #### def ensuring(cond: Boolean): DeadCodeElimination

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

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

    Definition Classes
      AnyRef

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

    Definition Classes
      AnyRef → Any

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

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

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

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

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

    Definition Classes
      AnyRef → Any

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

    SubComponent are added to a HashSet and two phases are the same if they have the same name

    SubComponent are added to a HashSet and two phases are the same if they have the same name

    Definition Classes
      SubComponent → AnyRef → Any

22. #### val initial: Boolean

    True if this phase runs before all other phases.

    True if this phase runs before all other phases. Usually, `parser`.

    Definition Classes
      SubComponent

23. #### val internal: Boolean

    True if this phase is not provided by a plug-in.

    True if this phase is not provided by a plug-in.

    Definition Classes
      SubComponent

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

    Definition Classes
      Any

25. #### val liveClosures: HashSet[Global.Symbol]

    closures that are instantiated at least once, after dead code elimination

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

    Definition Classes
      AnyRef

27. #### def newPhase(p: Phase): DeadCodeEliminationPhase

    Create a new phase

    Create a new phase

    Definition Classes
      DeadCodeElimination → SubComponent

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

    Definition Classes
      AnyRef

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

    Definition Classes
      AnyRef

30. #### def ownPhase: Phase

    The phase corresponding to this subcomponent in the current compiler run

    The phase corresponding to this subcomponent in the current compiler run

    Definition Classes
      SubComponent

31. #### val phaseName: String

    The name of the phase

    The name of the phase

    Definition Classes
      DeadCodeElimination → SubComponent

32. #### def phaseNewFlags: Long

    New flags defined by the phase which are not valid before

    New flags defined by the phase which are not valid before

    Definition Classes
      SubComponent

33. #### def phaseNextFlags: Long

    New flags defined by the phase which are not valid until immediately after it

    New flags defined by the phase which are not valid until immediately after it

    Definition Classes
      SubComponent

34. #### val requires: List[String]

    Names of phases required by this component.

    Names of phases required by this component. Default is `Nil`.

    Definition Classes
      SubComponent

35. #### val runsBefore: List[String]

    Names of phases that must run after this phase.

    Names of phases that must run after this phase. Default is `Nil`.

    Definition Classes
      SubComponent

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

    Definition Classes
      AnyRef

37. #### val terminal: Boolean

    True if this phase runs after all other phases.

    True if this phase runs after all other phases. Usually, `terminal`.

    Definition Classes
      SubComponent

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

    Definition Classes
      AnyRef → Any

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

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

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

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

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

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

42. #### def →[B](y: B): (DeadCodeElimination, B)

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

### Inherited from SubComponent

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from DeadCodeElimination to any2stringadd[DeadCodeElimination]

### Inherited by implicit conversion StringFormat from DeadCodeElimination to StringFormat[DeadCodeElimination]

### Inherited by implicit conversion Ensuring from DeadCodeElimination to Ensuring[DeadCodeElimination]

### Inherited by implicit conversion ArrowAssoc from DeadCodeElimination to ArrowAssoc[DeadCodeElimination]

### Ungrouped