ceph/src/isa-l/igzip/flatten_ll.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <stdint.h>
   4
   5 #include "flatten_ll.h"
   6
   7 void flatten_ll(uint32_t * ll_hist)
   8 {
   9         uint32_t i, j;
  10         uint32_t *s = ll_hist, x, *p;
  11
  12         s[265] += s[266];
  13         s[266] = s[267] + s[268];
  14         s[267] = s[269] + s[270];
  15         s[268] = s[271] + s[272];
  16         s[269] = s[273] + s[274] + s[275] + s[276];
  17         s[270] = s[277] + s[278] + s[279] + s[280];
  18         s[271] = s[281] + s[282] + s[283] + s[284];
  19         s[272] = s[285] + s[286] + s[287] + s[288];
  20         p = s + 289;
  21         for (i = 273; i < 277; i++) {
  22                 x = *(p++);
  23                 for (j = 1; j < 8; j++)
  24                         x += *(p++);
  25                 s[i] = x;
  26         }
  27         for (; i < 281; i++) {
  28                 x = *(p++);
  29                 for (j = 1; j < 16; j++)
  30                         x += *(p++);
  31                 s[i] = x;
  32         }
  33         for (; i < 285; i++) {
  34                 x = *(p++);
  35                 for (j = 1; j < 32; j++)
  36                         x += *(p++);
  37                 s[i] = x;
  38         }
  39         s[284] -= s[512];
  40         s[285] = s[512];
  41 }