From: W. Felix Handte <w@felixhandte.com>
Date: Wed, 20 Jun 2018 19:51:14 +0000 (-0400)
Subject: Also Use `matchLow` for HC3 Match
X-Git-Tag: v1.3.5~3^2~10^2~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c14eafe3d679472382253b6de4ac5e40baac69e;p=thirdparty%2Fzstd.git

Also Use `matchLow` for HC3 Match
---

diff --git a/lib/compress/zstd_opt.c b/lib/compress/zstd_opt.c
index 0abdf3b90..90a262025 100644
--- a/lib/compress/zstd_opt.c
+++ b/lib/compress/zstd_opt.c
@@ -581,7 +581,7 @@ U32 ZSTD_insertBtAndGetAllMatches (
     /* HC3 match finder */
     if ((mls == 3) /*static*/ && (bestLength < mls)) {
         U32 const matchIndex3 = ZSTD_insertAndFindFirstIndexHash3(ms, ip);
-        if ((matchIndex3 > windowLow)
+        if ((matchIndex3 >= matchLow)
           & (current - matchIndex3 < (1<<18)) /*heuristic : longer distance likely too expensive*/ ) {
             size_t mlen;
             if ((dictMode == ZSTD_noDict) /*static*/ || (dictMode == ZSTD_dictMatchState) /*static*/ || (matchIndex3 >= dictLimit)) {