From da2b44dfcc49db368618f4671b0a8b4d58bc47b6 Mon Sep 17 00:00:00 2001
From: Shuhei Kadowaki <40514306+aviatesk@users.noreply.github.com>
Date: Mon, 31 Jul 2023 12:40:41 -0400
Subject: [PATCH] fix `CyclePadding(::DataType)` (#50719)

We probably want to add a test for this code path.

(cherry picked from commit f4cb8bc014f21e7066c72ca4f2c32c14fdf7a59f)
---
 base/reinterpretarray.jl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/base/reinterpretarray.jl b/base/reinterpretarray.jl
index 74b888a39fd769..3844edc331c7c8 100644
--- a/base/reinterpretarray.jl
+++ b/base/reinterpretarray.jl
@@ -720,7 +720,9 @@ function CyclePadding(T::DataType)
     a, s = datatype_alignment(T), sizeof(T)
     as = s + (a - (s % a)) % a
     pad = padding(T)
-    s != as && push!(pad, Padding(s, as - s))
+    if s != as
+        pad = Core.svec(pad..., Padding(s, as - s))
+    end
     CyclePadding(pad, as)
 end