old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-strided-a-u16-i2.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 128
   7
   8 typedef struct {
   9    unsigned short a;
  10    unsigned short b;
  11 } s;
  12
  13 int
  14 main1 ()
  15 {
  16   s arr[N];
  17   s *ptr = arr;
  18   s res[N];
  19   int i;
  20
  21   for (i = 0; i < N; i++)
  22     {
  23       arr[i].a = i;
  24       arr[i].b = i * 2;
  25       if (arr[i].a == 178)
  26          abort();
  27     }
  28
  29   for (i = 0; i < N; i++)
  30     {
  31       res[i].a = ptr->b - ptr->a;
  32       res[i].b = ptr->b + ptr->a;
  33       ptr++;
  34     }
  35
  36   /* check results:  */
  37   for (i = 0; i < N; i++)
  38     {
  39       if (res[i].a != arr[i].b - arr[i].a
  40           || res[i].b != arr[i].a + arr[i].b)
  41         abort ();
  42     }
  43
  44   return 0;
  45 }
  46
  47 int main (void)
  48 {
  49   int i;
  50
  51   check_vect ();
  52
  53   main1 ();
  54
  55   return 0;
  56 }
  57
  58 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { target vect_strided } } } */
  59 /* { dg-final { cleanup-tree-dump "vect" } } */