From b509a0be0f96eba9c3a5a00250fd9b27b7cb407f Mon Sep 17 00:00:00 2001
From: flywind <xzsflywind@gmail.com>
Date: Thu, 15 Apr 2021 21:47:56 +0800
Subject: [PATCH] follow up #17518

---
 tests/vm/tvmmisc.nim | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/vm/tvmmisc.nim b/tests/vm/tvmmisc.nim
index f542fa560893..f0d2c2dbfe89 100644
--- a/tests/vm/tvmmisc.nim
+++ b/tests/vm/tvmmisc.nim
@@ -279,6 +279,14 @@ block: # bug #10815
 
   const a = P()
   doAssert $a == ""
+  
+when defined osx: # xxx bug https://github.com/nim-lang/Nim/issues/10815#issuecomment-476380734
+  block:
+    type CharSet {.union.} = object 
+      cs: set[char]
+      vs: array[4, uint64]
+    const a = Charset(cs: {'a'..'z'})
+    doAssert a.repr.len > 0
 
 import tables