From: Danila Kutenin <kutdanila@yandex.ru>
Date: Tue, 29 Jun 2021 08:06:47 +0000 (+0100)
Subject: Add possible improvements for gcc-11
X-Git-Tag: v1.5.1~1^2~141^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F2689%2Fhead;p=thirdparty%2Fzstd.git

Add possible improvements for gcc-11
---

diff --git a/lib/decompress/zstd_decompress_block.c b/lib/decompress/zstd_decompress_block.c
index e5391d662..9acf2f746 100644
--- a/lib/decompress/zstd_decompress_block.c
+++ b/lib/decompress/zstd_decompress_block.c
@@ -977,10 +977,8 @@ ZSTD_decodeSequence(seqState_t* seqState, const ZSTD_longOffset_e longOffsets)
                 U32 const ll0 = (llDInfo->baseValue == 0);
                 if (LIKELY((ofBits == 0))) {
                     offset = seqState->prevOffset[ll0];
-                    if (UNLIKELY(ll0)) {
-                        seqState->prevOffset[1] = seqState->prevOffset[0];
-                        seqState->prevOffset[0] = offset;
-                    }
+                    seqState->prevOffset[1] = seqState->prevOffset[!ll0];
+                    seqState->prevOffset[0] = offset;
                 } else {
                     offset = ofBase + ll0 + BIT_readBitsFast(&seqState->DStream, 1);
                     {   size_t temp = (offset==3) ? seqState->prevOffset[0] - 1 : seqState->prevOffset[offset];