From: W. Felix Handte <w@felixhandte.com>
Date: Tue, 15 May 2018 05:15:33 +0000 (-0400)
Subject: Refine ip Initialization to Avoid ARM Weirdness
X-Git-Tag: v1.3.5~3^2~44^2~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b05ae9b6086fea37b7c7edee1fc8296e01a1b521;p=thirdparty%2Fzstd.git

Refine ip Initialization to Avoid ARM Weirdness
---

diff --git a/lib/compress/zstd_fast.c b/lib/compress/zstd_fast.c
index dacb26370..5c6f0dc8b 100644
--- a/lib/compress/zstd_fast.c
+++ b/lib/compress/zstd_fast.c
@@ -83,7 +83,7 @@ size_t ZSTD_compressBlock_fast_generic(
         || localLowestIndex >= (U32)(dictEnd - dictBase));
 
     /* init */
-    ip += (dictMode == ZSTD_noDict && ip == localLowest);
+    ip += (ip - localLowest + dictEnd - dictLowest == 0);
     {   U32 const maxRep = dictMode == ZSTD_dictMatchState ?
                            (U32)(ip - localLowest + dictEnd - dictLowest) :
                            (U32)(ip - localLowest);