Wiring
Related Doc:
package wiring
construct a new Wiring pass
construct a new Wiring pass
the WiringInfo to apply
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.
Input Firrtl AST
A transformed Firrtl AST
A convenience function useful for debugging and error messages
A convenience function useful for debugging and error messages
Perform the transform and update annotations.
Perform the transform and update annotations.
Input Firrtl AST
A transformed Firrtl AST
A mathematical transform on some type
A mathematical transform on some type
an output object of the same type
All transforms that must run after this transform
All transforms that must run after this transform
This is a means of prerequisite injection into some other transform. Normally a transform will define its own prerequisites. Dependents exist for two main situations:
First, they improve the composition of optional transforms. If some first transform is optional (e.g., an expensive validation check), you would like to be able to conditionally cause it to run. If it is listed as a prerequisite on some other, second transform then it must always run before that second transform. There's no way to turn it off. However, by listing the second transform as a dependent of the first transform, the first transform will only run (and be treated as a prerequisite of the second transform) if included in a list of target transforms that should be run.
Second, an external library would like to inject some first transform before a second transform inside FIRRTL. In this situation, the second transform cannot have any knowledge of external libraries. The use of a dependent here allows for prerequisite injection into FIRRTL proper.
(Since version FIRRTL 1.3) Due to confusion, 'dependents' is being renamed to 'optionalPrerequisiteOf'. Override the latter instead.
The use of a Seq here is to preserve input order. Internally, this will be converted to a private, ordered Set.
firrtl.passes.CheckTypes for an example of an optional checking firrtl.Transform
Convenience method to get annotations relevant to this Transform
Convenience method to get annotations relevant to this Transform
The CircuitState form which to extract annotations
A collection of annotations
(Since version 1.1) Just collect the actual Annotation types the transform wants
(Since version FIRRTL 1.3) Use Dependency API methods for equivalent functionality. See: https://bit.ly/2Voppre
(Since version FIRRTL 1.3) Use Dependency API methods for equivalent functionality. See: https://bit.ly/2Voppre
Pass that computes and applies a sequence of wiring modifications