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Merge pull request #2341 from senhuang42/ldm_optimized_for_opt_parser

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Integrate long distance matches into optimal parser
This commit is contained in:
Yann Collet
2020-10-13 13:09:07 -07:00
committed by GitHub
parent 1e47a75abf d6911b86be
commit f5d5cd3b40
7 changed files with 261 additions and 28 deletions
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lib/compress/zstd_compress.c
+2 -1
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@@ -2413,7 +2413,7 @@ static size_t ZSTD_buildSeqStore(ZSTD_CCtx* zc, const void* src, size_t srcSize)
src, srcSize);
assert(zc->externSeqStore.pos <= zc->externSeqStore.size);
} else if (zc->appliedParams.ldmParams.enableLdm) {
rawSeqStore_t ldmSeqStore = {NULL, 0, 0, 0};
rawSeqStore_t ldmSeqStore = kNullRawSeqStore;
ldmSeqStore.seq = zc->ldmSequences;
ldmSeqStore.capacity = zc->maxNbLdmSequences;
@@ -2430,6 +2430,7 @@ static size_t ZSTD_buildSeqStore(ZSTD_CCtx* zc, const void* src, size_t srcSize)
assert(ldmSeqStore.pos == ldmSeqStore.size);
} else { /* not long range mode */
ZSTD_blockCompressor const blockCompressor = ZSTD_selectBlockCompressor(zc->appliedParams.cParams.strategy, dictMode);
ms->ldmSeqStore = NULL;
lastLLSize = blockCompressor(ms, &zc->seqStore, zc->blockState.nextCBlock->rep, src, srcSize);
}
{ const BYTE* const lastLiterals = (const BYTE*)src + srcSize - lastLLSize;