From 48d5e4f95cc36f3f2dba1f21b66efad1882d5d27 Mon Sep 17 00:00:00 2001
From: Arne Döring <arne.doering@gmx.net>
Date: Thu, 21 Mar 2019 06:55:21 +0100
Subject: add condition for szUnknown (#10869)

---
 compiler/ccgtypes.nim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/compiler/ccgtypes.nim b/compiler/ccgtypes.nim
index 51f04d076..f4864180e 100644
--- a/compiler/ccgtypes.nim
+++ b/compiler/ccgtypes.nim
@@ -246,8 +246,8 @@ proc cacheGetType(tab: TypeCache; sig: SigHash): Rope =
   result = tab.getOrDefault(sig)
 
 proc addAbiCheck(m: BModule, t: PType, name: Rope) =
-  if isDefined(m.config, "checkabi"):
-    addf(m.s[cfsTypeInfo], "NIM_CHECK_SIZE($1, $2);$n", [name, rope(getSize(m.config, t))])
+  if isDefined(m.config, "checkabi") and (let size = getSize(m.config, t); size != szUnknownSize):
+    addf(m.s[cfsTypeInfo], "NIM_CHECK_SIZE($1, $2);$n", [name, rope(size)])
 
 proc ccgIntroducedPtr(conf: ConfigRef; s: PSym): bool =
   var pt = skipTypes(s.typ, typedescInst)
-- 
cgit 1.4.1-2-gfad0