From 0fa24b6b7568557c29c9b3ee213ce2b06fcd6367 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Mon, 16 Jul 2018 19:26:15 -0400
Subject: allow implicit cast of undefined to optional

---
 src/ir.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/ir.cpp')

diff --git a/src/ir.cpp b/src/ir.cpp
index 0804134d2a..35b6b4cef4 100644
--- a/src/ir.cpp
+++ b/src/ir.cpp
@@ -9408,7 +9408,7 @@ static IrInstruction *ir_analyze_maybe_wrap(IrAnalyze *ira, IrInstruction *sourc
         if (type_is_invalid(casted_payload->value.type))
             return ira->codegen->invalid_instruction;
 
-        ConstExprValue *val = ir_resolve_const(ira, casted_payload, UndefBad);
+        ConstExprValue *val = ir_resolve_const(ira, casted_payload, UndefOk);
         if (!val)
             return ira->codegen->invalid_instruction;
 
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