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Pass iend into ZSTD_storeSeq() to allow ZSTD_wildcopy()

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This commit is contained in:
Nick Terrell
2019-09-20 00:52:55 -07:00
parent cdad7fa512
commit ddab2a94e8
7 changed files with 36 additions and 31 deletions
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9
lib/compress/zstd_compress_internal.h
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@@ -344,8 +344,9 @@ MEM_STATIC size_t ZSTD_minGain(size_t srcSize, ZSTD_strategy strat)
* Store a sequence (litlen, litPtr, offCode and mlBase) into seqStore_t.
* `offCode` : distance to match + ZSTD_REP_MOVE (values <= ZSTD_REP_MOVE are repCodes).
* `mlBase` : matchLength - MINMATCH
* Allowed to overread literals up to litLimit.
*/
MEM_STATIC void ZSTD_storeSeq(seqStore_t* seqStorePtr, size_t litLength, const void* literals, U32 offCode, size_t mlBase)
MEM_STATIC void ZSTD_storeSeq(seqStore_t* seqStorePtr, size_t litLength, const BYTE* literals, const BYTE* litLimit, U32 offCode, size_t mlBase)
{
#if defined(DEBUGLEVEL) && (DEBUGLEVEL >= 6)
static const BYTE* g_start = NULL;
@@ -362,7 +363,11 @@ MEM_STATIC void ZSTD_storeSeq(seqStore_t* seqStorePtr, size_t litLength, const v
/* We are guaranteed at least 8 bytes of literals space because of HASH_READ_SIZE and
* MINMATCH.
*/
ZSTD_wildcopy8(seqStorePtr->lit, literals, (ptrdiff_t)litLength);
assert(litLimit - literals >= HASH_READ_SIZE + MINMATCH);
if (litLimit - literals >= WILDCOPY_OVERLENGTH)
ZSTD_wildcopy(seqStorePtr->lit, literals, (ptrdiff_t)litLength, ZSTD_no_overlap);
else
ZSTD_wildcopy8(seqStorePtr->lit, literals, (ptrdiff_t)litLength);
seqStorePtr->lit += litLength;
/* literal Length */