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Update zstd to version 1.4.4

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This commit is contained in:
Tino Reichardt
2019-11-13 07:36:21 +01:00
parent 5e3efe410d
commit a95e994767
36 changed files with 1871 additions and 845 deletions
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2
C/zstd/zstd_v03.c
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@@ -356,7 +356,7 @@ MEM_STATIC unsigned BIT_highbit32 (U32 val)
_BitScanReverse ( &r, val );
return (unsigned) r;
# elif defined(__GNUC__) && (__GNUC__ >= 3) /* Use GCC Intrinsic */
return 31 - __builtin_clz (val);
return __builtin_clz (val) ^ 31;
# else /* Software version */
static const unsigned DeBruijnClz[32] = { 0, 9, 1, 10, 13, 21, 2, 29, 11, 14, 16, 18, 22, 25, 3, 30, 8, 12, 20, 28, 15, 17, 24, 7, 19, 27, 23, 6, 26, 5, 4, 31 };
U32 v = val;