gcc-4.9/gcc/testsuite/gcc.dg/vect/pr47139.c


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/* { dg-do compile } */

int d;

void
foo ()
{
  int a = 0;
  unsigned char b;
  for (b = 1; b; b++)
    {
      d = a;
      a |= b;
    }
}

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