From 81a7ee2ef18bee31d62838c4e5229e8df71b3b25 Mon Sep 17 00:00:00 2001
From: N5N3 <2642243996@qq.com>
Date: Wed, 10 Aug 2022 15:09:53 +0800
Subject: [PATCH] Fuse `in_union`

---
 src/subtype.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/subtype.c b/src/subtype.c
index fcb4aac2aaef21..e05965caa0ee73 100644
--- a/src/subtype.c
+++ b/src/subtype.c
@@ -1170,7 +1170,7 @@ static int subtype(jl_value_t *x, jl_value_t *y, jl_stenv_t *e, int param)
         x = pick_union_element(x, e, 0);
     }
     if (jl_is_uniontype(y)) {
-        if (x == ((jl_uniontype_t*)y)->a || x == ((jl_uniontype_t*)y)->b)
+        if (in_union(y, x))
             return 1;
         if (jl_is_unionall(x))
             return subtype_unionall(y, (jl_unionall_t*)x, e, 0, param);