diff options
Diffstat (limited to 'thirdparty/zstd/common/entropy_common.c')
| -rw-r--r-- | thirdparty/zstd/common/entropy_common.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/thirdparty/zstd/common/entropy_common.c b/thirdparty/zstd/common/entropy_common.c index 41cd69566b..4229b40c5e 100644 --- a/thirdparty/zstd/common/entropy_common.c +++ b/thirdparty/zstd/common/entropy_common.c @@ -43,8 +43,14 @@ static U32 FSE_ctz(U32 val) assert(val != 0); { # if defined(_MSC_VER) /* Visual */ - unsigned long r=0; - return _BitScanForward(&r, val) ? (unsigned)r : 0; + if (val != 0) { + unsigned long r; + _BitScanForward(&r, val); + return (unsigned)r; + } else { + /* Should not reach this code path */ + __assume(0); + } # elif defined(__GNUC__) && (__GNUC__ >= 3) /* GCC Intrinsic */ return __builtin_ctz(val); # elif defined(__ICCARM__) /* IAR Intrinsic */ @@ -217,7 +223,7 @@ static size_t FSE_readNCount_body_default( } #if DYNAMIC_BMI2 -TARGET_ATTRIBUTE("bmi2") static size_t FSE_readNCount_body_bmi2( +BMI2_TARGET_ATTRIBUTE static size_t FSE_readNCount_body_bmi2( short* normalizedCounter, unsigned* maxSVPtr, unsigned* tableLogPtr, const void* headerBuffer, size_t hbSize) { @@ -299,7 +305,7 @@ HUF_readStats_body(BYTE* huffWeight, size_t hwSize, U32* rankStats, ZSTD_memset(rankStats, 0, (HUF_TABLELOG_MAX + 1) * sizeof(U32)); weightTotal = 0; { U32 n; for (n=0; n<oSize; n++) { - if (huffWeight[n] >= HUF_TABLELOG_MAX) return ERROR(corruption_detected); + if (huffWeight[n] > HUF_TABLELOG_MAX) return ERROR(corruption_detected); rankStats[huffWeight[n]]++; weightTotal += (1 << huffWeight[n]) >> 1; } } @@ -337,7 +343,7 @@ static size_t HUF_readStats_body_default(BYTE* huffWeight, size_t hwSize, U32* r } #if DYNAMIC_BMI2 -static TARGET_ATTRIBUTE("bmi2") size_t HUF_readStats_body_bmi2(BYTE* huffWeight, size_t hwSize, U32* rankStats, +static BMI2_TARGET_ATTRIBUTE size_t HUF_readStats_body_bmi2(BYTE* huffWeight, size_t hwSize, U32* rankStats, U32* nbSymbolsPtr, U32* tableLogPtr, const void* src, size_t srcSize, void* workSpace, size_t wkspSize) |