From 85b997b346aac7d5dc51f9b49ba7596db1b407b0 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Mon, 21 Jul 2025 16:11:26 -0700
Subject: [PATCH] Sema: fix missed error union OPV

---
 src/Sema.zig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Sema.zig b/src/Sema.zig
index 1e3140528a..f3cca1ea6a 100644
--- a/src/Sema.zig
+++ b/src/Sema.zig
@@ -9058,6 +9058,10 @@ fn analyzeErrUnionPayload(
         try sema.addSafetyCheckUnwrapError(block, src, operand, .unwrap_errunion_err, .is_non_err);
     }
 
+    if (try sema.typeHasOnePossibleValue(payload_ty)) |payload_only_value| {
+        return Air.internedToRef(payload_only_value.toIntern());
+    }
+
     return block.addTyOp(.unwrap_errunion_payload, payload_ty, operand);
 }