hcq/TurboPFor-Integer-Compression
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TurboPFor: Bit Unpacking

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2018-01-06 21:15:51 +01:00
parent 0850dd1b65
commit d62d012f07
1 changed files with 2 additions and 2 deletions
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4
bitunpack.c
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@ -69,7 +69,7 @@ typedef unsigned char *(*BITUNPACK_D64)(const unsigned char *__restrict in, unsi
#define _BITUNPACK_ bitdunpack // delta + 0
#include "bitunpack_.h"
#define OUT( _op_, _x_, _w_, _parm_) OP(_op_,_x_) = (_parm_ += zigzagdec32(_w_))
#define OUT( _op_, _x_, _w_, _parm_) OP(_op_,_x_) = (_parm_ += TEMPLATE2(zigzagdec, USIZE)(_w_))
#define _BITUNPACK_ bitzunpack // zigzag
#include "bitunpack_.h"
@ -89,7 +89,7 @@ typedef unsigned char *(*BITUNPACK_D64)(const unsigned char *__restrict in, unsi
#define BITNUNPACK(in, n, out, csize, usize) {\
unsigned char *ip = in;\
for(op = out,out+=n; op < out;) { unsigned oplen = out - op,b; if(oplen > csize) oplen = csize; __builtin_prefetch(in+512,0);\
for(op = out,out+=n; op < out;) { unsigned oplen = out - op,b; if(oplen > csize) oplen = csize; PREFETCH(in+512,0);\
b = *ip++; ip = TEMPLATE2(bitunpacka, usize)[b](ip, oplen, op);\
op += oplen;\
} \