daiduo/TurboPFor-Integer-Compression
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

BitUtil: c/c++ header

Browse Source
This commit is contained in:
powturbo
2021-11-11 18:09:16 +01:00
parent 5b95dfcd6f
commit 9bf195f146
1 changed files with 8 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
bitutil.h
View File

@ -248,7 +248,14 @@ static ALWAYS_INLINE uint16_t _mm_cvtsi128_si16(__m128i v) { return (uint16_t)_m
#define DELTRB(_in_, _n_, _start_, _mindelta_, _b_, _out_) { unsigned _v; for(_b_=0,_v = 0; _v < _n_; _v++) _out_[_v] = _in_[_v] - (_start_) - _v*(_mindelta_) - (_mindelta_), _b_ |= _out_[_v]; _b_ = bsr32(_b_); }
//----------------------------------------- bitreverse scalar + SIMD -------------------------------------------
#if __clang__ && defined __has_builtin
#if __has_builtin(__builtin_bitreverse64)
#define BUILTIN_BITREVERSE
#else
#define BUILTIN_BITREVERSE
#endif
#endif
#ifdef BUILTIN_BITREVERSE
#define rbit8(x) __builtin_bitreverse8( x)
#define rbit16(x) __builtin_bitreverse16(x)
#define rbit32(x) __builtin_bitreverse32(x)