o

firrtl.passes

ExpandWhens

object ExpandWhens extends Transform with Pass

Expand Whens

This pass does the following things: $ - Remove last connect semantics $ - Remove conditional blocks $ - Eliminate concept of scoping $ - Consolidate attaches

Source
ExpandWhens.scala
Note

Assumes bulk connects and isInvalids have been expanded

,

Assumes all references are declared

Linear Supertypes
Pass, Transform, TransformLike[CircuitState], LazyLogging, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. ExpandWhens
  2. Pass
  3. Transform
  4. TransformLike
  5. LazyLogging
  6. AnyRef
  7. Any
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Visibility
  1. Public
  2. All

Type Members

  1. type Defaults = Seq[Map[WrappedExpression, Expression]]

    List of all netlists of each declared scope, ordered from closest to farthest

    List of all netlists of each declared scope, ordered from closest to farthest

    Note

    Note immutable.Map because conversion from mutable.LinkedHashMap to mutable.Map is VERY slow

  2. class InfoMap extends HashMap[String, Info]

    Collects Info data serialized names for nodes, aggregating into MultiInfo when necessary

  3. type Netlist = LinkedHashMap[WrappedExpression, Expression]

    Maps a reference to whatever connects to it.

    Maps a reference to whatever connects to it. Used to resolve last connect semantics

  4. type NodeMap = HashMap[MemoizedHash[Expression], String]

    Maps an expression to a declared node name.

    Maps an expression to a declared node name. Used to memoize predicates

  5. type Simlist = ArrayBuffer[Statement]

    Contains all simulation constructs

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  8. def execute(state: CircuitState): CircuitState

    Perform the transform, encode renaming with RenameMap, and can delete annotations Called by runTransform.

    Perform the transform, encode renaming with RenameMap, and can delete annotations Called by runTransform.

    state

    Input Firrtl AST

    returns

    A transformed Firrtl AST

    Definition Classes
    Pass → Transform
  9. def expandWhens(m: Module): (Netlist, Simlist, Seq[Attach], Statement, InfoMap)

    Expands a module's when statements

    Expands a module's when statements

    m

    Module to expand

    Note

    Netlist maps a reference to whatever connects to it

    ,

    Simlist contains all simulation constructs in m

    ,

    Seq[Attach] contains all Attach statements (unsimplified)

    ,

    Statement contains all declarations in the module (including DefNode's)

  10. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  11. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. def inputForm: CircuitForm

    The firrtl.CircuitForm that this transform requires to operate on

    The firrtl.CircuitForm that this transform requires to operate on

    Definition Classes
    Pass → Transform
  14. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  15. val logger: Logger
    Definition Classes
    LazyLogging
  16. def name: String

    A convenience function useful for debugging and error messages

    A convenience function useful for debugging and error messages

    Definition Classes
    Transform → TransformLike
  17. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  19. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  20. def outputForm: CircuitForm

    The firrtl.CircuitForm that this transform outputs

    The firrtl.CircuitForm that this transform outputs

    Definition Classes
    Pass → Transform
  21. def run(c: Circuit): Circuit

    Returns circuit with when and last connection semantics resolved

    Returns circuit with when and last connection semantics resolved

    Definition Classes
    ExpandWhens → Pass
  22. final def runTransform(state: CircuitState): CircuitState

    Perform the transform and update annotations.

    Perform the transform and update annotations.

    state

    Input Firrtl AST

    returns

    A transformed Firrtl AST

    Definition Classes
    Transform
  23. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  24. def toString(): String
    Definition Classes
    AnyRef → Any
  25. def transform(state: CircuitState): CircuitState

    A mathematical transform on some type

    A mathematical transform on some type

    returns

    an output object of the same type

    Definition Classes
    Transform → TransformLike
  26. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  27. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  28. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Deprecated Value Members

  1. final def getMyAnnotations(state: CircuitState): Seq[Annotation]

    Convenience method to get annotations relevant to this Transform

    Convenience method to get annotations relevant to this Transform

    state

    The CircuitState form which to extract annotations

    returns

    A collection of annotations

    Definition Classes
    Transform
    Annotations
    @deprecated
    Deprecated

    (Since version 1.1) Just collect the actual Annotation types the transform wants

Inherited from Pass

Inherited from Transform

Inherited from TransformLike[CircuitState]

Inherited from LazyLogging

Inherited from AnyRef

Inherited from Any

Ungrouped