Another TopWiring Bug Fix (Multi-Level Annotations) (#889)

When different levels of the circuit were annotated, the TopWiring signals of the lower levels would "run-over" the TopWiring signals of the higher levels

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main/scala/firrtl/transforms/TopWiring.scala b/src/main/scala/firrtl/transforms/TopWiring.scala
index 9f78848b..80572b30 100644
--- a/src/main/scala/firrtl/transforms/TopWiring.scala
+++ b/src/main/scala/firrtl/transforms/TopWiring.scala
@@ -150,7 +150,7 @@ class TopWiringTransform extends Transform {
           sourcemods.get(module).map( _.map { case (a,b,c,path,p) => (a,b,c, inst +: path, p)})
       }.flatten
       if (seqChildren.nonEmpty) {
-        sourcemods(mod.name) = seqChildren
+        sourcemods(mod.name) = sourcemods.getOrElse(mod.name, Seq()) ++ seqChildren
       }
     }