gcc/testsuite/gcc.dg/vect/vect-78.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 8
   7 #define OFF 8
   8
   9 /* Check handling of accesses for which the "initial condition" -
  10    the expression that represents the first location accessed - is
  11    more involved than just an ssa_name.  */
  12
  13 int ib[N+OFF] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0, 1, 3, 5, 7, 11, 13, 17, 0, 2, 6, 10, 14, 22, 26, 34};
  14 int off = 8;
  15
  16 __attribute__ ((noinline))
  17 int main1 (int *ib)
  18 {
  19   int i;
  20   int ia[N];
  21
  22   for (i = 0; i < N; i++)
  23     {
  24       ia[i] = ib[i+off];
  25     }
  26
  27   /* check results:  */
  28   for (i = 0; i < N; i++)
  29     {
  30      if (ia[i] != ib[i+off])
  31         abort ();
  32     }
  33
  34   return 0;
  35 }
  36
  37 int main (void)
  38 {
  39   check_vect ();
  40
  41   main1 (ib);
  42   return 0;
  43 }
  44
  45 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */