gcc/testsuite/gcc.dg/vect/vect-77-global.c

/* Disabling epilogues until we find a better way to deal with scans.  */
/* { dg-additional-options "--param vect-epilogues-nomask=0" } */
/* { dg-require-effective-target vect_int } */
/* { dg-add-options bind_pic_locally } */

#include <stdarg.h>
#include "tree-vect.h"

#define N 8
#define OFF 8

/* Check handling of accesses for which the "initial condition" -
   the expression that represents the first location accessed - is
   more involved than just an ssa_name.  */

int ib[N+OFF] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0, 1, 3, 5, 7, 11, 13, 17, 0, 2, 6, 10, 14, 22, 26, 34};
int ia[N];

__attribute__ ((noinline))
int main1 (int *ib, int off)
{
  int i;

  for (i = 0; i < N; i++)
    {
      ia[i] = ib[i+off];
    }


  /* check results:  */
  for (i = 0; i < N; i++)
    {
     if (ia[i] != ib[i+off])
        abort ();
    }

  return 0;
}

int main (void)
{
  check_vect ();

  main1 (ib, 8);
  return 0;
}

/* For targets that don't support misaligned loads we version for the load.
   (The store is aligned).  */
/* Requires versioning for aliasing.  */

/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail { ! vect_unaligned_possible } } } } */
/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */
/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */