From 325e48809587fdf47d398578a1d94f856ab1f275 Mon Sep 17 00:00:00 2001 From: Schuyler Eldridge Date: Fri, 11 Jan 2019 15:55:59 -0500 Subject: Add chisel3.stage.phases.Convert Phase This coalesces three distinct operations into one Convert Phase: 1. Chisel Circuit to FIRRTL Circuit (CHIRRTL) conversion 2. Conversion of Chisel Annotations to FIRRTL Annotations 3. Generation of RunFirrtlTransformAnnotations Co-Authored-By: Schuyler Eldridge Co-Authored-By: chick Signed-off-by: Schuyler Eldridge --- src/main/scala/chisel3/stage/phases/Convert.scala | 41 +++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/main/scala/chisel3/stage/phases/Convert.scala (limited to 'src/main') diff --git a/src/main/scala/chisel3/stage/phases/Convert.scala b/src/main/scala/chisel3/stage/phases/Convert.scala new file mode 100644 index 00000000..174030ae --- /dev/null +++ b/src/main/scala/chisel3/stage/phases/Convert.scala @@ -0,0 +1,41 @@ +// See LICENSE for license details. + +package chisel3.stage.phases + +import chisel3.experimental.RunFirrtlTransform +import chisel3.internal.firrtl.Converter +import chisel3.stage.ChiselCircuitAnnotation + +import firrtl.{AnnotationSeq, Transform} +import firrtl.options.Phase +import firrtl.stage.{FirrtlCircuitAnnotation, RunFirrtlTransformAnnotation} + +/** This prepares a [[ChiselCircuitAnnotation]] for compilation with FIRRTL. This does three things: + * - Uses [[chisel3.internal.firrtl.Converter]] to generate a [[FirrtlCircuitAnnotation]] + * - Extracts all [[firrtl.annotations.Annotation]]s from the [[chisel3.internal.firrtl.Circuit]] + * - Generates any needed [[RunFirrtlTransformAnnotation]]s from extracted [[firrtl.annotations.Annotation]]s + */ +class Convert extends Phase { + + def transform(annotations: AnnotationSeq): AnnotationSeq = annotations.flatMap { + case a: ChiselCircuitAnnotation => { + /* Convert this Chisel Circuit to a FIRRTL Circuit */ + Some(FirrtlCircuitAnnotation(Converter.convert(a.circuit))) ++ + /* Convert all Chisel Annotations to FIRRTL Annotations */ + a + .circuit + .annotations + .map(_.toFirrtl) ++ + /* Add requested FIRRTL Transforms for any Chisel Annotations which mixed in RunFirrtlTransform */ + a + .circuit + .annotations + .collect { case b: RunFirrtlTransform => b.transformClass } + .distinct + .filterNot(_ == classOf[firrtl.Transform]) + .map { c: Class[_ <: Transform] => RunFirrtlTransformAnnotation(c.newInstance()) } + } + case a => Some(a) + } + +} -- cgit v1.2.3