scala.tools.nsc.backend.icode.analysis.CopyPropagation

CopyAnalysis

final class CopyAnalysis extends DataFlowAnalysis[CopyPropagation.this.copyLattice.type]

Source
CopyPropagation.scala
Linear Supertypes
DataFlowAnalysis[CopyPropagation.this.copyLattice.type], AnyRef, Any
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  1. CopyAnalysis
  2. DataFlowAnalysis
  3. AnyRef
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new CopyAnalysis()

Type Members

  1. type P = BasicBlock

    A type for program points.

    A type for program points.

    Definition Classes
    CopyAnalysisDataFlowAnalysis

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

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  7. def backwardAnalysis(f: (P, Elem) ⇒ Elem): Unit

    .

    ...

    f

    ...

    Definition Classes
    DataFlowAnalysis
  8. def blockTransfer(b: BasicBlock, in: Elem): Elem

  9. final def cleanReferencesTo(s: State, target: Location): Unit

    Remove all references to this local variable from both stack and bindings.

    Remove all references to this local variable from both stack and bindings. It is called when a new assignment destroys previous copy-relations.

  10. def clone(): AnyRef

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  11. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  12. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  13. def finalize(): Unit

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  14. def forwardAnalysis(f: (P, Elem) ⇒ Elem): Unit

    Implements forward dataflow analysis: the transfer function is applied when inputs to a Program point change, to obtain the new output value.

    Implements forward dataflow analysis: the transfer function is applied when inputs to a Program point change, to obtain the new output value.

    f

    the transfer function.

    Definition Classes
    DataFlowAnalysis
  15. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  16. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  17. val in: Map[P, Elem]

    Definition Classes
    DataFlowAnalysis
  18. def init(m: IMethod): Unit

  19. def init(f: ⇒ Unit): Unit

    Definition Classes
    DataFlowAnalysis
  20. def interpret(in: Elem, i: Instruction): Elem

    Abstract interpretation for one instruction.

  21. final def invalidateRecords(state: State): Unit

    Drop everything known about mutable record fields.

    Drop everything known about mutable record fields.

    A simple escape analysis would help here. Some of the records we track never leak to other methods, therefore they can not be changed. We should not drop their bindings in this case. A closure object would be such an example. Some complications:

    • outer pointers. An closure escapes as an outer pointer to another nested closure.
  22. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  23. final def isPureMethod(m: Symbol): Boolean

    Is symbol m a pure method?

    Is symbol m a pure method?

    m

    ...

    returns

    ...

  24. var iterations: Int

    the number of times we iterated before reaching a fixpoint.

    the number of times we iterated before reaching a fixpoint.

    Definition Classes
    DataFlowAnalysis
  25. val lattice: CopyPropagation.this.copyLattice.type

    Definition Classes
    CopyAnalysisDataFlowAnalysis
  26. var method: IMethod

  27. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  28. final def notify(): Unit

    Definition Classes
    AnyRef
  29. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  30. val out: Map[P, Elem]

    Definition Classes
    DataFlowAnalysis
  31. def reinit(f: ⇒ Unit): Unit

    Reinitialize, but keep the old solutions.

    Reinitialize, but keep the old solutions. Should be used when reanalyzing the same method, after some code transformation.

    Definition Classes
    DataFlowAnalysis
  32. def run(): Unit

    Definition Classes
    CopyAnalysisDataFlowAnalysis
  33. final def simulateCall(state: State, method: Symbol, static: Boolean): State

    Update the state s after the call to method.

    Update the state s after the call to method. The stack elements are dropped and replaced by the result of the call. If the method is impure, all bindings to record fields are cleared.

    state

    ...

    method

    ...

    static

    ...

    returns

    ...

  34. var stat: Boolean

    collect statistics?

    collect statistics?

    Definition Classes
    DataFlowAnalysis
  35. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  36. final def toString(): String

    Definition Classes
    CopyAnalysis → AnyRef → Any
  37. val visited: HashSet[P]

    Definition Classes
    DataFlowAnalysis
  38. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  39. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  40. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  41. val worklist: Set[P]

    Definition Classes
    DataFlowAnalysis

Inherited from DataFlowAnalysis[CopyPropagation.this.copyLattice.type]

Inherited from AnyRef

Inherited from Any