From bc14b7735929f764b09446073375174236fab161 Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Wed, 11 Aug 2021 17:19:23 +0200
Subject: [PATCH] fixes #18665 DFA generator bug (#18676)

---
 compiler/dfa.nim | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/compiler/dfa.nim b/compiler/dfa.nim
index 402945042..65c483e9c 100644
--- a/compiler/dfa.nim
+++ b/compiler/dfa.nim
@@ -769,6 +769,12 @@ proc gen(c: var Con; n: PNode) =
   of nkCharLit..nkNilLit: discard
   of nkAsgn, nkFastAsgn:
     gen(c, n[1])
+
+    if n[0].kind in PathKinds0:
+      let a = c.skipTrivials(n[0])
+      if a.kind in nkCallKinds:
+        gen(c, a)
+
     # watch out: 'obj[i].f2 = value' sets 'f2' but
     # "uses" 'i'. But we are only talking about builtin array indexing so
     # it doesn't matter and 'x = 34' is NOT a usage of 'x'.