From f1136a48518378eb3454f5da4f05c686755b5819 Mon Sep 17 00:00:00 2001
From: Thomas Lively <7121787+tlively@users.noreply.github.com>
Date: Mon, 2 Aug 2021 17:58:37 -0400
Subject: Fix a bug in nominal LUB calculation (#4046)

The wrong variable was null checked, leading to segfaults.
---
 src/wasm/wasm-type.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/wasm/wasm-type.cpp b/src/wasm/wasm-type.cpp
index d4f38cc2c..998d1a96b 100644
--- a/src/wasm/wasm-type.cpp
+++ b/src/wasm/wasm-type.cpp
@@ -1512,7 +1512,7 @@ HeapType TypeBounder::lub(HeapType a, HeapType b) {
         }
         currA = nextA;
       }
-      if (currB) {
+      if (nextB) {
         if (!seen.insert(nextB).second) {
           return HeapType(uintptr_t(nextB));
         }
-- 
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