Subversion Repositories openrisc_2011-10-31

/* { dg-require-effective-target vect_int } */

#include <stdarg.h>

#include "tree-vect.h"

#define N 16

char x[N] __attribute__ ((__aligned__(16)));

int main1 (char *y)

{

  struct {

    char *p;

    char *q;

  } s;

  char cb[N] __attribute__ ((__aligned__(16))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};

  int i;

  /* Not vectorized - can't antialias the pointer s.p from the array cb.  */

  s.p = y;

  for (i = 0; i < N; i++)

    {

      s.p[i] = cb[i];

    }

  /* check results:  */

  for (i = 0; i < N; i++)

    {

      if (s.p[i] != cb[i])

        abort ();

    }

  /* Not vectorized - can't antialias the pointer s.p from the pointer s.q.  */

  s.q = cb;

  for (i = 0; i < N; i++)

    {

      s.p[i] = s.q[i];

    }

  /* check results:  */

  for (i = 0; i < N; i++)

    {

      if (s.p[i] != s.q[i])

        abort ();

    }

  return 0;

}

int main (void)

{

  check_vect ();

  return main1 (x);

}

/* Currently the loops fail to vectorize due to aliasing problems.

   If/when the aliasing problems are resolved, unalignment may

   prevent vectorization on some targets.  */

/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { xfail *-*-* } } } */

/* { dg-final { scan-tree-dump-times "can't determine dependence between" 2 "vect" } } */

/* { dg-final { cleanup-tree-dump "vect" } } */