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This commit is contained in:
W. Felix Handte 2018-06-20 15:27:23 -04:00
parent ae1f3898a2
commit 0a6cf7cd1d
1 changed files with 2 additions and 3 deletions
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5
lib/compress/zstd_opt.c
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@ -359,7 +359,7 @@ static U32 ZSTD_insertAndFindFirstIndexHash3 (ZSTD_matchState_t* ms, const BYTE*
/** ZSTD_insertBt1() : add one or multiple positions to tree. /** ZSTD_insertBt1() : add one or multiple positions to tree.
* ip : assumed <= iend-8 . * ip : assumed <= iend-8 .
* @return : nb of positions added */ * @return : nb of positions added */
static U32 ZSTD_insertBt1( FORCE_INLINE_TEMPLATE U32 ZSTD_insertBt1(
ZSTD_matchState_t* ms, ZSTD_compressionParameters const* cParams, ZSTD_matchState_t* ms, ZSTD_compressionParameters const* cParams,
const BYTE* const ip, const BYTE* const iend, const BYTE* const ip, const BYTE* const iend,
U32 const mls, const ZSTD_dictMode_e dictMode) U32 const mls, const ZSTD_dictMode_e dictMode)
@ -665,11 +665,10 @@ U32 ZSTD_insertBtAndGetAllMatches (
*smallerPtr = *largerPtr = 0; *smallerPtr = *largerPtr = 0;
commonLengthSmaller = commonLengthLarger = 0;
if (dictMode == ZSTD_dictMatchState && nbCompares) { if (dictMode == ZSTD_dictMatchState && nbCompares) {
U32 dictMatchIndex = dms->hashTable[h]; U32 dictMatchIndex = dms->hashTable[h];
const U32* const dmsBt = dms->chainTable; const U32* const dmsBt = dms->chainTable;
commonLengthSmaller = commonLengthLarger = 0;
while (nbCompares-- && (dictMatchIndex > dmsLowLimit)) { while (nbCompares-- && (dictMatchIndex > dmsLowLimit)) {
const U32* const nextPtr = dmsBt + 2*(dictMatchIndex & btMask); const U32* const nextPtr = dmsBt + 2*(dictMatchIndex & btMask);
size_t matchLength = MIN(commonLengthSmaller, commonLengthLarger); /* guaranteed minimum nb of common bytes */ size_t matchLength = MIN(commonLengthSmaller, commonLengthLarger); /* guaranteed minimum nb of common bytes */