From: W. Felix Handte <w@felixhandte.com>
Date: Thu, 3 May 2018 00:30:03 +0000 (-0400)
Subject: Fix Rep Code Initialization
X-Git-Tag: v1.3.5~3^2~44^2~18
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c31ee3c7f827ebb1f3141ca4162e4721d3617752;p=thirdparty%2Fzstd.git

Fix Rep Code Initialization
---

diff --git a/lib/compress/zstd_fast.c b/lib/compress/zstd_fast.c
index 8f3d33e66..067efba5e 100644
--- a/lib/compress/zstd_fast.c
+++ b/lib/compress/zstd_fast.c
@@ -91,8 +91,10 @@ size_t ZSTD_compressBlock_fast_generic(
     assert(hasDict == ZSTD_noDict || hasDict == ZSTD_dictMatchState);
 
     /* init */
-    ip += (ip==lowest);
-    {   U32 const maxRep = (U32)(ip-lowest);
+    ip += (hasDict == ZSTD_noDict && ip == lowest);
+    {   U32 const maxRep = hasDict == ZSTD_dictMatchState ?
+                           (U32)(ip - dictLowest) :
+                           (U32)(ip - lowest);
         if (offset_2 > maxRep) offsetSaved = offset_2, offset_2 = 0;
         if (offset_1 > maxRep) offsetSaved = offset_1, offset_1 = 0;
     }