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/* PR tree-optimization/20601 */

extern void abort (void);

extern void exit (int);

struct T

{

  char *t1;

  char t2[4096];

  char **t3;

};

int a[5];

int b;

char **c;

int d;

char **e;

struct T t;

char *f[16];

char *g[] = { "a", "-u", "b", "c" };

__attribute__ ((__noreturn__)) void

foo (void)

{

  while (1);

}

__attribute__ ((noinline)) char *

bar (char *x, unsigned int y)

{

  return 0;

}

static inline char *

baz (char *x, unsigned int y)

{

  if (sizeof (t.t2) != (unsigned int) -1 && y > sizeof (t.t2))

    foo ();

  return bar (x, y);

}

static inline int

setup1 (int x)

{

  char *p;

  int rval;

  if (!baz (t.t2, sizeof (t.t2)))

    baz (t.t2, sizeof (t.t2));

  if (x & 0x200)

    {

      char **h, **i = e;

      ++d;

      e = f;

      if (t.t1 && *t.t1)

        e[0] = t.t1;

      else

        abort ();

      for (h = e + 1; (*h = *i); ++i, ++h)

        ;

    }

  return 1;

}

static inline int

setup2 (void)

{

  int j = 1;

  e = c + 1;

  d = b - 1;

  while (d > 0 && e[0][0] == '-')

    {

      if (e[0][1] != '\0' && e[0][2] != '\0')

        abort ();

      switch (e[0][1])

        {

        case 'u':

          if (!e[1])

            abort ();

          t.t3 = &e[1];

          d--;

          e++;

          break;

        case 'P':

          j |= 0x1000;

          break;

        case '-':

          d--;

          e++;

          if (j == 1)

            j |= 0x600;

          return j;

        }

      d--;

      e++;

    }

  if (d > 0 && !(j & 1))

    abort ();

  return j;

}

int

main (void)

{

  int x;

  c = g;

  b = 4;

  x = setup2 ();

  t.t1 = "/bin/sh";

  setup1 (x);

  /* PRE shouldn't transform x into the constant 0x601 here, it's not legal.  */

  if ((x & 0x400) && !a[4])

    abort ();

  exit (0);

}