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TurboPFor: Bit Packing

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2017-02-26 14:22:11 +01:00
parent 8f18bb3fe3
commit b87458ae50
1 changed files with 4 additions and 2 deletions
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6
bitpack.c
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@ -44,9 +44,11 @@ typedef unsigned char *(*BITPACK_D64)(uint64_t *__restrict out, unsigned n, cons
#define PREFETCH(_ip_) __builtin_prefetch(_ip_+768)//#define PREFETCH(ip)
#if 0
#define IP0(_ip_,_x_) *_ip_
#define IP( _ip_,_x_) *_ip_++
#define IPI(_ip_)
#else
#define IP0(_ip_,_x_) _ip_[_x_]
#define IP( _ip_,_x_) _ip_[_x_]
#define IPI(_ip_) _ip_ += 32
#endif
@ -62,7 +64,7 @@ typedef unsigned char *(*BITPACK_D64)(uint64_t *__restrict out, unsigned n, cons
#define DELTA
#define IPB(_ip_,_x_, _parm_) v = IP(_ip_,_x_) - start; start = IP(_ip_,_x_)
#define IPB(_ip_,_x_, _parm_) v = IP0(_ip_,_x_) - start; start = IP(_ip_,_x_)
#define IPV(_ip_,_x_) v
#define IPX(_ip_,_x_) (v = IP(_ip_,_x_) - start)
#define IPP(_ip_,_x_, _parm_) start = IP(_ip_,_x_)
@ -76,7 +78,7 @@ typedef unsigned char *(*BITPACK_D64)(uint64_t *__restrict out, unsigned n, cons
#define _BITPACK_ bitfpack
#include "bitpack_.h"
#define IPB( _ip_,_x_, _parm_) v = IP(_ip_,_x_) - start - 1; start = IP(_ip_,_x_)
#define IPB( _ip_,_x_, _parm_) v = IP0(_ip_,_x_) - start - 1; start = IP(_ip_,_x_)
#define IPV( _ip_,_x_) v
#define IPX(_ip_,_x_) (v = IP(_ip_,_x_) - start - 1)
#define IPP(_ip_,_x_, _parm_) start = IP(_ip_,_x_)