From: Yann Collet <cyan@fb.com>
Date: Fri, 3 Nov 2017 07:59:05 +0000 (-0700)
Subject: improved level 11 speed
X-Git-Tag: upstream/1.9.3~11^2~25^2~20
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=82c1aed41927d0d3400ab91f975c2e163ecdcc1d;p=platform%2Fupstream%2Flz4.git

improved level 11 speed
---

diff --git a/lib/lz4opt.h b/lib/lz4opt.h
index edcfc10..c754865 100644
--- a/lib/lz4opt.h
+++ b/lib/lz4opt.h
@@ -324,8 +324,10 @@ static int LZ4HC_compress_optimal (
 
             DEBUGLOG(7, "search at rPos:%u", cur);
             //nb_matches = LZ4HC_BinTree_GetAllMatches(ctx, curPtr, matchlimit, MINMATCH-1, matches, fullUpdate);
-            nb_matches = LZ4HC_HashChain_GetAllMatches(ctx, curPtr, matchlimit, MINMATCH-1, matches, fullUpdate);
-            //nb_matches = LZ4HC_HashChain_GetAllMatches(ctx, curPtr, matchlimit, last_match_pos - cur, matches, fullUpdate);   /* only test matches of a minimum length */
+            if (fullUpdate)
+                nb_matches = LZ4HC_HashChain_GetAllMatches(ctx, curPtr, matchlimit, MINMATCH-1, matches, fullUpdate);
+            else
+                nb_matches = LZ4HC_HashChain_GetAllMatches(ctx, curPtr, matchlimit, last_match_pos - cur, matches, fullUpdate);   /* only test matches of a minimum length; slightly faster, but misses a few bytes */
             if (!nb_matches) continue;
 
             if ( ((size_t)matches[nb_matches-1].len > sufficient_len)