From da9791767bf9d4c334e22a1c4718e325279be984 Mon Sep 17 00:00:00 2001
From: Jonathan S <gereeter+code@gmail.com>
Date: Sat, 23 Dec 2017 20:38:36 -0600
Subject: [PATCH] Remove unnecessary assert that unions have only one variant

---
 src/librustc/ty/layout.rs | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/librustc/ty/layout.rs b/src/librustc/ty/layout.rs
index b46a7585945..b6871147da8 100644
--- a/src/librustc/ty/layout.rs
+++ b/src/librustc/ty/layout.rs
@@ -1357,9 +1357,6 @@ enum StructKind {
                     if packed && def.repr.align > 0 {
                         bug!("Union cannot be packed and aligned");
                     }
-                    if variants.len() != 1 {
-                        bug!("Union must be represented as a single variant");
-                    }
 
                     let mut align = if def.repr.packed() {
                         dl.i8_align