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

#include <stdarg.h>

#include "tree-vect.h"

#define M00 100

#define M10 216

#define M01 1322

#define M11 13

#define M02 74

#define M12 191

#define N 16

void foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)

{

  unsigned int i, a, b;

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

    {

       a = *pInput++;

       b = *pInput++;

       *pOutput++ = M00 * a + M01 * b;

       *pOutput++ = M10 * a + M11 * b;

    }

}

int main (int argc, const char* argv[])

{

  unsigned int input[N], output[N], i;

  unsigned int check_results[N] = {1322, 13, 4166, 471, 7010, 929, 9854, 1387, 12698, 1845, 15542, 2303, 18386, 2761, 21230, 3219};

  check_vect ();

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

    {

      input[i] = i%256;

      output[i] = 0;

      __asm__ volatile ("");

    }

  foo (input, output);

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

    {

      if (output[i] != check_results[i])

        abort ();

      __asm__ volatile ("");

    }

  return 0;

}

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

/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target vect_perm } } } */

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