From f3b5fe715cdb651e9e4f533dd22012eb42e6e6b5 Mon Sep 17 00:00:00 2001
From: Karol Stasiak <karol.m.stasiak@gmail.com>
Date: Wed, 4 Sep 2019 01:00:16 +0200
Subject: [PATCH] Fix alias resolution during unused code elimination

---
 src/main/scala/millfork/node/opt/NodeOptimization.scala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/scala/millfork/node/opt/NodeOptimization.scala b/src/main/scala/millfork/node/opt/NodeOptimization.scala
index cb952457..f5824aff 100644
--- a/src/main/scala/millfork/node/opt/NodeOptimization.scala
+++ b/src/main/scala/millfork/node/opt/NodeOptimization.scala
@@ -19,9 +19,9 @@ trait NodeOptimization {
     var result = set
     var lastSize = set.size
     do {
-      lastSize = set.size
+      lastSize = result.size
       result = result.flatMap(name => aliases.get(name).fold(Set(name))(Set(_, name)))
-    } while(lastSize != set.size)
+    } while(lastSize != result.size)
     result
   }