From 0ec4d84349a69b1c62a17d70e369abb91a35ce51 Mon Sep 17 00:00:00 2001
From: albertchen-sifive
Date: Wed, 8 Aug 2018 15:17:13 -0700
Subject: Use LinkedHashSet in propagateAnnotations (#855)

Fixes #780 ---
 src/main/scala/firrtl/Compiler.scala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/main/scala')

diff --git a/src/main/scala/firrtl/Compiler.scala b/src/main/scala/firrtl/Compiler.scala
index 603c05f6..b34782b5 100644
--- a/src/main/scala/firrtl/Compiler.scala
+++ b/src/main/scala/firrtl/Compiler.scala
@@ -283,8 +283,8 @@ abstract class Transform extends LazyLogging {
       resAnno: AnnotationSeq,
       renameOpt: Option[RenameMap]): AnnotationSeq = {
     val newAnnotations = {
-      val inSet = inAnno.toSet
-      val resSet = resAnno.toSet
+      val inSet = mutable.LinkedHashSet() ++ inAnno
+      val resSet = mutable.LinkedHashSet() ++ resAnno
       val deleted = (inSet -- resSet).map {
         case DeletedAnnotation(xFormName, delAnno) => DeletedAnnotation(s"$xFormName+$name", delAnno)
         case anno => DeletedAnnotation(name, anno)
-- 
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