From ebfd3450d9a3338726e1ed8b08a5751b06604cd5 Mon Sep 17 00:00:00 2001
From: Luuk de Gram <luuk@degram.dev>
Date: Tue, 30 May 2023 21:55:44 +0200
Subject: codegen: Write padding bytes for unions

Previously we did not write any missing padding bytes after the smallest
field (either tag or payload, depending on alignment). This resulted in
writing too few bytes and not matching the full abisize of the union.
---
 src/codegen.zig | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/codegen.zig')

diff --git a/src/codegen.zig b/src/codegen.zig
index 692c55e380..adce183833 100644
--- a/src/codegen.zig
+++ b/src/codegen.zig
@@ -611,6 +611,10 @@ pub fn generateSymbol(
                 }
             }
 
+            if (layout.padding > 0) {
+                try code.writer().writeByteNTimes(0, layout.padding);
+            }
+
             return Result.ok;
         },
         .Optional => {
-- 
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