From bdd728e4d331aa89124d113051e4483d040d6ca2 Mon Sep 17 00:00:00 2001
From: Berkan Diler <b.diler@gmx.de>
Date: Sun, 14 Nov 2021 10:32:59 +0100
Subject: [PATCH] Revert a de-optimization from #1734 and add a comment

---
 src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs b/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
index d9d42e061..abe59516f 100644
--- a/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
+++ b/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
@@ -288,8 +288,10 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         /// <param name="componentCount">The number of components to write.</param>
         private void WriteDefineHuffmanTables(int componentCount)
         {
+            // This uses a C#'s compiler optimization that refers to the static data segment of the assembly,
+            // and doesn't incur any allocation at all.
             // Table identifiers.
-            ReadOnlySpan<byte> headers = stackalloc byte[]
+            ReadOnlySpan<byte> headers = new byte[]
             {
                 0x00,
                 0x10,