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Existing Repcode Check Only Applies to noDict Case

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W. Felix Handte 2018-05-09 16:46:57 -04:00
parent 8b241da4df
commit 7a25f7ef5b
1 changed files with 4 additions and 3 deletions
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7
lib/compress/zstd_double_fast.c
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@ -112,8 +112,8 @@ size_t ZSTD_compressBlock_doubleFast_generic(
const BYTE* match = base + matchIndexS; const BYTE* match = base + matchIndexS;
hashLong[h2] = hashSmall[h] = current; /* update hash tables */ hashLong[h2] = hashSmall[h] = current; /* update hash tables */
assert(offset_1 <= current); /* supposed guaranteed by construction */ if (dictMode == ZSTD_noDict && ((offset_1 > 0) & (MEM_read32(ip+1-offset_1) == MEM_read32(ip+1)))) {
if ((offset_1 > 0) & (MEM_read32(ip+1-offset_1) == MEM_read32(ip+1))) { assert(offset_1 <= current); /* supposed guaranteed by construction */
/* favor repcode */ /* favor repcode */
mLength = ZSTD_count(ip+1+4, ip+1+4-offset_1, iend) + 4; mLength = ZSTD_count(ip+1+4, ip+1+4-offset_1, iend) + 4;
ip++; ip++;
@ -162,7 +162,8 @@ size_t ZSTD_compressBlock_doubleFast_generic(
hashSmall[ZSTD_hashPtr(ip-2, hBitsS, mls)] = (U32)(ip-2-base); hashSmall[ZSTD_hashPtr(ip-2, hBitsS, mls)] = (U32)(ip-2-base);
/* check immediate repcode */ /* check immediate repcode */
while ( (ip <= ilimit) while ( dictMode == ZSTD_noDict
&& (ip <= ilimit)
&& ( (offset_2>0) && ( (offset_2>0)
& (MEM_read32(ip) == MEM_read32(ip - offset_2)) )) { & (MEM_read32(ip) == MEM_read32(ip - offset_2)) )) {
/* store sequence */ /* store sequence */