From 3891d6d73afd6408314eeb27713dad0f45718310 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?kleines=20Filmr=C3=B6llchen?= <malu.bertsch@gmail.com>
Date: Fri, 17 Dec 2021 12:36:25 +0100
Subject: [PATCH] AK: Fast path for single-element TypedTransfer::copy

Co-Authored-By: Brian Gianforcaro <bgianf@serenityos.org>
---
 AK/TypedTransfer.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/AK/TypedTransfer.h b/AK/TypedTransfer.h
index 91045a9da9..64ed7fb274 100644
--- a/AK/TypedTransfer.h
+++ b/AK/TypedTransfer.h
@@ -37,7 +37,10 @@ public:
             return 0;
 
         if constexpr (Traits<T>::is_trivial()) {
-            __builtin_memmove(destination, source, count * sizeof(T));
+            if (count == 1)
+                *destination = *source;
+            else
+                __builtin_memmove(destination, source, count * sizeof(T));
             return count;
         }