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Disable LDM minMatch adjustment when using opt parser

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senhuang42
2020-10-07 13:56:25 -04:00
parent ddf8a3f1b9
commit 031b7ec15f
1 changed files with 0 additions and 7 deletions
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lib/compress/zstd_ldm.c
-7
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@@ -27,13 +27,6 @@ void ZSTD_ldm_adjustParameters(ldmParams_t* params,
DEBUGLOG(4, "ZSTD_ldm_adjustParameters"); DEBUGLOG(4, "ZSTD_ldm_adjustParameters");
if (!params->bucketSizeLog) params->bucketSizeLog = LDM_BUCKET_SIZE_LOG; if (!params->bucketSizeLog) params->bucketSizeLog = LDM_BUCKET_SIZE_LOG;
if (!params->minMatchLength) params->minMatchLength = LDM_MIN_MATCH_LENGTH; if (!params->minMatchLength) params->minMatchLength = LDM_MIN_MATCH_LENGTH;
if (cParams->strategy >= ZSTD_btopt) {
/* Get out of the way of the optimal parser */
U32 const minMatch = MAX(cParams->targetLength, params->minMatchLength);
assert(minMatch >= ZSTD_LDM_MINMATCH_MIN);
assert(minMatch <= ZSTD_LDM_MINMATCH_MAX);
params->minMatchLength = minMatch;
}
if (params->hashLog == 0) { if (params->hashLog == 0) {
params->hashLog = MAX(ZSTD_HASHLOG_MIN, params->windowLog - LDM_HASH_RLOG); params->hashLog = MAX(ZSTD_HASHLOG_MIN, params->windowLog - LDM_HASH_RLOG);
assert(params->hashLog <= ZSTD_HASHLOG_MAX); assert(params->hashLog <= ZSTD_HASHLOG_MAX);