From 0f7954831a881c899002eaf8c203aec35dedeeee Mon Sep 17 00:00:00 2001
From: LemonBoy <thatlemon@gmail.com>
Date: Sat, 5 Dec 2020 18:58:54 +0100
Subject: stage1: Initialize single-element union tag correctly

Use the field value instead of defaulting to zero.
---
 src/stage1/analyze.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/stage1/analyze.cpp')

diff --git a/src/stage1/analyze.cpp b/src/stage1/analyze.cpp
index 5b0ea53eb4..e8958052bc 100644
--- a/src/stage1/analyze.cpp
+++ b/src/stage1/analyze.cpp
@@ -6113,7 +6113,7 @@ ZigValue *get_the_one_possible_value(CodeGen *g, ZigType *type_entry) {
         TypeUnionField *only_field = &union_type->data.unionation.fields[0];
         ZigType *field_type = resolve_union_field_type(g, only_field);
         assert(field_type);
-        bigint_init_unsigned(&result->data.x_union.tag, 0);
+        bigint_init_bigint(&result->data.x_union.tag, &only_field->enum_field->value);
         result->data.x_union.payload = g->pass1_arena->create<ZigValue>();
         copy_const_val(g, result->data.x_union.payload,
                 get_the_one_possible_value(g, field_type));
-- 
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