From cb716af1cc859e45ce4b14266657d91d7b6389f1 Mon Sep 17 00:00:00 2001
From: Anton Firszov <antonfir@gmail.com>
Date: Fri, 21 Feb 2020 12:11:35 +0100
Subject: [PATCH] optimize RowOctet<T> indexer

---
 src/ImageSharp/Formats/Jpeg/Components/RowOctet.cs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/ImageSharp/Formats/Jpeg/Components/RowOctet.cs b/src/ImageSharp/Formats/Jpeg/Components/RowOctet.cs
index 57a134703..8c3daa4d5 100644
--- a/src/ImageSharp/Formats/Jpeg/Components/RowOctet.cs
+++ b/src/ImageSharp/Formats/Jpeg/Components/RowOctet.cs
@@ -2,6 +2,7 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using SixLabors.ImageSharp.Memory;
 
@@ -39,6 +40,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
 
         public Span<T> this[int y]
         {
+            [MethodImpl(InliningOptions.ShortMethod)]
             get
             {
                 // No unsafe tricks, since Span<T> can't be used as a generic argument
@@ -52,9 +54,15 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
                     5 => this.row5,
                     6 => this.row6,
                     7 => this.row7,
-                    _ => throw new IndexOutOfRangeException()
+                    _ => ThrowIndexOutOfRangeException()
                 };
             }
         }
+
+        [MethodImpl(InliningOptions.ColdPath)]
+        private static Span<T> ThrowIndexOutOfRangeException()
+        {
+            throw new IndexOutOfRangeException();
+        }
     }
 }