From: helloguo <helloguo@dev064.prn3.facebook.com>
Date: Tue, 28 Jul 2020 05:08:52 +0000 (-0700)
Subject: Optimize ZSTD_wildcopy
X-Git-Tag: v1.4.7~105^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82b0cd844f833f3e0488356b38410ef65417a278;p=thirdparty%2Fzstd.git

Optimize ZSTD_wildcopy
---

diff --git a/lib/common/zstd_internal.h b/lib/common/zstd_internal.h
index ee3cb51bf..557ae60d4 100644
--- a/lib/common/zstd_internal.h
+++ b/lib/common/zstd_internal.h
@@ -290,8 +290,10 @@ void ZSTD_wildcopy(void* dst, const void* src, ptrdiff_t length, ZSTD_overlap_e
         }
         while (op < oend);
 #else
-        COPY16(op, ip);
-        if (op >= oend) return;
+        memcpy(op, ip, 16);
+        if (16 >= length) return;
+        op += 16;
+        ip += 16;
         do {
             COPY16(op, ip);
             COPY16(op, ip);