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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" } } */