From d62229e3ad6069597b74874ba3b84fc185b2fa4c Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sat, 26 Feb 2022 15:35:46 -0700
Subject: Sema: Module.Union.abiAlignment can return 0

When the union is a 0-bit type.
---
 src/Module.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/Module.zig')

diff --git a/src/Module.zig b/src/Module.zig
index 7f52dc23e9..91386405be 100644
--- a/src/Module.zig
+++ b/src/Module.zig
@@ -1210,6 +1210,7 @@ pub const Union = struct {
         return @intCast(u32, most_index);
     }
 
+    /// Returns 0 if the union is represented with 0 bits at runtime.
     pub fn abiAlignment(u: Union, target: Target, have_tag: bool) u32 {
         var max_align: u32 = 0;
         if (have_tag) max_align = u.tag_ty.abiAlignment(target);
@@ -1225,7 +1226,6 @@ pub const Union = struct {
             };
             max_align = @maximum(max_align, field_align);
         }
-        assert(max_align != 0);
         return max_align;
     }
 
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