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/* { dg-do compile } */
/* { dg-options "-O2" } */
/* { dg-require-effective-target ia32 } */
 
long long mac(const int *a, const int *b, long long sqr, long long *sum)
{
  int i;
  long long dotp = *sum;
 
  for (i = 0; i < 150; i++) {
    dotp += (long long)b[i] * a[i];
    sqr += (long long)b[i] * b[i];
  }
 
  *sum = dotp;
  return sqr;
}
 
/* { dg-final { scan-assembler-times "imull" 2 } } */