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

#include <stdarg.h>

#include "tree-vect.h"

#define N 64

#define DOT 43680

signed short X[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));

signed short Y[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));

/* short->int->int dot product.

   Detected as a dot-product pattern.

   Vectorized on targets that support dot-product for signed shorts.  */

__attribute__ ((noinline)) int

foo (int len)

{

  int i;

  int result = 0;

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

    {

      result += (X[i] * Y[i]);

    }

  return result;

}

int

main (void)

{

  int i;

  int dot;

  check_vect ();

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

    {

      X[i] = i;

      Y[i] = N - i;

      __asm__ volatile ("");

    }

  dot = foo (N);

  if (dot != DOT)

    abort ();

  return 0;

}

/* { dg-final { scan-tree-dump-times "vect_recog_dot_prod_pattern: detected" 1 "vect" } } */

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

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

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