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

TurboPFor: Bit Packing

Browse Source
This commit is contained in:
x
2017-01-06 18:06:51 +01:00
parent a65f1b20cd
commit a736b556f2
1 changed files with 20 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
bitpack.c
View File

@ -26,7 +26,14 @@
#include <stdio.h>
#include "bitpack.h"
#include "bitutil.h"
#define BITNPACK(in, n, out, csize, usize) { uint_t *ip; \
for(ip = in,in_=in+n; ip < _in;) { unsigned iplen = in_ - ip; if(iplen > csize) iplen = cize; __builtin_prefetch(ip+512);\
unsigned b; BITSIZE32(in, n, b); *out++ = b; out = TEMPLATE2(bitpack, usize)(ip, csize, out); \
iplen += csize;\
} return out;\
}
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunsequenced"
@ -44,6 +51,10 @@ unsigned char *bitpack64(uint64_t *__restrict in, unsigned n, unsigned
#undef SRC
#undef SRC1
/*unsigned char *bitnpack32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned *ip; BITNPACK(in, n, out, 128, 32); }
unsigned char *bitnpack16(unsigned short *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned short *ip; BITNPACK(in, n, out, 128, 16); }
unsigned char *bitnpack64(uint64_t *__restrict in, unsigned n, unsigned char *__restrict out) { uint64_t *ip; BITNPACK(in, n, out, 128, 64); }*/
#define IPPB( __ip,__x, __parm) as = *__ip-start; start=*__ip++
#define SRC( __ip,__x) as
#define SRC1(__ip,__x) (*__ip - start)
@ -91,6 +102,14 @@ unsigned char *bitzpack32(unsigned *__restrict in, unsigned n, unsigned ch
#undef IPPB
#undef SRC
#undef SRC1
/*unsigned char *bitndpack32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned *ip; BITNPACK(in, n, out, 128, 32); }
unsigned char *bitnd1pack32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned *ip; BITNPACK(in, n, out, 128, 32); }
unsigned char *bitnfpack16(unsigned short *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned short *ip; BITNPACK(in, n, out, 128, 16); }
unsigned char *bitnf1pack64(uint64_t *__restrict in, unsigned n, unsigned char *__restrict out) { uint64_t *ip; BITNPACK(in, n, out, 128, 64); }
unsigned char *bitnzpack32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned *ip; BITNPACK(in, n, out, 128, 32); } */
//-----------------------------------------------------------------------------------------------
#pragma clang diagnostic pop
#else