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/* { dg-do compile } */

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

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

#define N 16

void fbar (float *);

void ibar (int *);

void sbar (short *);

/* multiple loops */

foo (int n)

{

  float a[N+1];

  float b[N];

  float c[N];

  float d[N];

  int ia[N];

  int ib[N];

  int ic[N];

  short sa[N];

  short sb[N];

  short sc[N];

  int i,j;

  int diff = 0;

  char cb[N];

  char cc[N];

  char image[N][N];

  char block[N][N];

  /* Not vectorizable yet (cross-iteration cycle).  */

  diff = 0;

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

    diff += (cb[i] - cc[i]);

  }

  ibar (&diff);

  /* Not vectorizable yet (outer-loop: not attempted.

     inner-loop: cross iteration cycle; multi-dimensional arrays).  */

  diff = 0;

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

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

      diff += (image[i][j] - block[i][j]);

    }

  }

  ibar (&diff);

  /* Vectorizable.  */

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

    a[i] = b[i];

  }

  fbar (a);

  /* Vectorizable.  */

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

    a[i] = b[i] + c[i] + d[i];

  }

  fbar (a);

  /* Not vectorizable yet (access pattern).  */

  for (i = 0; i < N/2; i++){

    a[i] = b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i];

    d[i] = b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i];

  }

  fbar (a);

  /* Vectorizable.  */

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

    a[i] = b[i] + c[i];

    d[i] = b[i] + c[i];

    ia[i] = ib[i] + ic[i];

  }

  ibar (ia);

  fbar (a);

  fbar (d);

  /* Not vectorizable yet (two types with different nunits in vector).  */

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

    ia[i] = ib[i] + ic[i];

    sa[i] = sb[i] + sc[i];

  }

  ibar (ia);

  sbar (sa);

  /* Not vetorizable yet (too conservative dependence test).  */

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

    a[i] = b[i] + c[i];

    a[i+1] = b[i] + c[i];

  }

  fbar (a);

}

/* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" } } */

/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */

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