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/* { dg-do compile } */

/* { dg-options "-O2 -mavx -mtune=generic -dp" } */

typedef struct bitmap_element_def {

  struct bitmap_element_def *next;

  unsigned int indx;

} bitmap_element;

typedef struct bitmap_head_def {

  bitmap_element *first;

  bitmap_element *current;

  unsigned int indx;

} bitmap_head;

typedef struct bitmap_head_def *bitmap;

typedef const struct bitmap_head_def *const_bitmap;

extern void bar (void) __attribute__ ((__noreturn__));

unsigned char

bitmap_and_compl_into (bitmap a, const_bitmap b)

{

  bitmap_element *a_elt = a->first;

  const bitmap_element *b_elt = b->first;

  if (a == b)

    {

      if ((!(a)->first))

        return 0;

      else

        return 1;

    }

  while (a_elt && b_elt)

    {

      if (a_elt->indx < b_elt->indx)

        a_elt = a_elt->next;

    }

  if (a->indx == a->current->indx)

    bar ();

  return 0;

}

/* { dg-final { scan-assembler-not "avx_vzeroupper" } } */