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TurboPFor: Bit Packing

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2018-01-06 21:15:51 +01:00
parent 1129d51ef5
commit b1d17da858
1 changed files with 7 additions and 9 deletions
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16
bitpack.c
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@ -120,9 +120,9 @@ typedef unsigned char *(*BITPACK_D64)(uint64_t *__restrict out, unsigned n, cons
#define _BITPACK_ bitepack
#include "bitpack_.h"*/
#define IPB(_ip_,_x_, _parm_) V = zigzagenc32(IP(_ip_,_x_) - start); start = IP(_ip_,_x_)
#define IPB(_ip_,_x_, _parm_) V = TEMPLATE2(zigzagenc, USIZE)(IP(_ip_,_x_) - start); start = IP(_ip_,_x_)
#define IPV(_ip_,_x_) VX
#define IPX(_ip_,_x_) (V = zigzagenc32(IP(_ip_,_x_) - start))
#define IPX(_ip_,_x_) (V = TEMPLATE2(zigzagenc, USIZE)(IP(_ip_,_x_) - start))
#define IPP(_ip_,_x_, _parm_) start = IP(_ip_,_x_)
#define _BITPACK_ bitzpack
#include "bitpack_.h"
@ -148,11 +148,10 @@ typedef unsigned char *(*BITPACK_D64)(uint64_t *__restrict out, unsigned n, cons
for(ip = in, in += n; ip < in;) { \
unsigned iplen = in - ip,b;\
if(iplen > csize) iplen = csize; PREFETCH(ip+512);\
TEMPLATE2(BITSIZE,usize)(ip, iplen, b); /*if(b!=usize) printf("$%d ", b);*/\
*op++ = b; \
op = TEMPLATE2(bitpacka, usize)[b](ip, csize, op); \
TEMPLATE2(BITSIZE,usize)(ip, iplen, b);\
*op++ = b; op = TEMPLATE2(bitpacka, usize)[b](ip, iplen, op); \
ip += iplen;\
} \
}\
return op - out;\
}
@ -163,13 +162,12 @@ typedef unsigned char *(*BITPACK_D64)(uint64_t *__restrict out, unsigned n, cons
TEMPLATE2(vbxput, usize)(op, start);\
for(ip = in,--n, in += n; ip < in;) { \
unsigned iplen = in - ip,b;\
TEMPLATE3(uint, usize, _t) _in[csize+8];\
if(iplen > csize) iplen = csize; PREFETCH(ip+512);\
b = TEMPLATE2(_bitd_, usize)(ip, iplen, start);\
*op++ = b; op = TEMPLATE2(_bitpacka_, usize)[b](ip, csize, op, start);\
*op++ = b; op = TEMPLATE2(_bitpacka_, usize)[b](ip, iplen, op, start);\
ip += iplen;\
start = ip[-1];\
} \
}\
return op - out;\
}