From: Rich Felker <dalias@aerifal.cx>
Date: Sun, 23 Sep 2018 06:51:01 +0000 (-0400)
Subject: optimize nop case of wmemmove
X-Git-Tag: v1.1.21~71
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=8cd738bbee3b4e60a99b71599c338bf444070f18;p=oweals%2Fmusl.git

optimize nop case of wmemmove
---

diff --git a/src/string/wmemmove.c b/src/string/wmemmove.c
index d58cebac..964c9032 100644
--- a/src/string/wmemmove.c
+++ b/src/string/wmemmove.c
@@ -4,6 +4,7 @@
 wchar_t *wmemmove(wchar_t *d, const wchar_t *s, size_t n)
 {
 	wchar_t *d0 = d;
+	if (d == s) return d;
 	if ((uintptr_t)d-(uintptr_t)s < n * sizeof *d)
 		while (n--) d[n] = s[n];
 	else