old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-strided-a-u8-i8-gap2.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include <stdio.h>
   5 #include "tree-vect.h"
   6
   7 #define N 16
   8
   9 typedef struct {
  10    unsigned char a;
  11    unsigned char b;
  12    unsigned char c;
  13    unsigned char d;
  14    unsigned char e;
  15    unsigned char f;
  16    unsigned char g;
  17    unsigned char h;
  18 } s;
  19
  20 int
  21 main1 ()
  22 {
  23   int i;
  24   s arr[N];
  25   s *ptr = arr;
  26   s res[N];
  27
  28   for (i = 0; i < N; i++)
  29     {
  30       arr[i].a = i;
  31       arr[i].b = i * 2;
  32       arr[i].c = 17;
  33       arr[i].d = i+34;
  34       arr[i].e = i + 5;
  35       arr[i].f = i * 2 + 2;
  36       arr[i].g = i - 3;
  37       arr[i].h = 56;
  38       if (arr[i].a == 178)
  39          abort();
  40     }
  41
  42   for (i = 0; i < N; i++)
  43     {
  44       res[i].c = ptr->a;
  45       res[i].a = ptr->f + ptr->a;
  46       res[i].d = ptr->f - ptr->a;
  47       res[i].b = ptr->f;
  48       res[i].f = ptr->a;
  49       res[i].e = ptr->f - ptr->a;
  50       res[i].h = ptr->f;
  51       res[i].g = ptr->f - ptr->a;
  52       ptr++;
  53     }
  54
  55   /* check results:  */
  56   for (i = 0; i < N; i++)
  57     {
  58       if (res[i].c != arr[i].a
  59           || res[i].a != arr[i].f + arr[i].a
  60           || res[i].d != arr[i].f - arr[i].a
  61           || res[i].b != arr[i].f
  62           || res[i].f != arr[i].a
  63           || res[i].e != arr[i].f - arr[i].a
  64           || res[i].h != arr[i].f
  65           || res[i].g != arr[i].f - arr[i].a)
  66           abort();
  67    }
  68 }
  69
  70
  71 int main (void)
  72 {
  73   check_vect ();
  74
  75   main1 ();
  76
  77   return 0;
  78 }
  79
  80 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_strided } } } */
  81 /* { dg-final { cleanup-tree-dump "vect" } } */