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/* PR rtl-optimization/21330 */

extern void abort (void);

extern int strcmp (const char *, const char *);

int

__attribute__((noinline))

bar (const char **x)

{

  return *(*x)++;

}

int

__attribute__((noinline))

baz (int c)

{

  return c != '@';

}

void

__attribute__((noinline))

foo (const char **w, char *x, _Bool y, _Bool z)

{

  char c = bar (w);

  int i = 0;

  while (1)

    {

      x[i++] = c;

      c = bar (w);

      if (y && c == '\'')

        break;

      if (z && c == '\"')

        break;

      if (!y && !z && !baz (c))

        break;

    }

   x[i] = 0;

}

int

main (void)

{

  char buf[64];

  const char *p;

  p = "abcde'fgh";

  foo (&p, buf, 1, 0);

  if (strcmp (p, "fgh") != 0 || strcmp (buf, "abcde") != 0)

    abort ();

  p = "ABCDEFG\"HI";

  foo (&p, buf, 0, 1);

  if (strcmp (p, "HI") != 0 || strcmp (buf, "ABCDEFG") != 0)

    abort ();

  p = "abcd\"e'fgh";

  foo (&p, buf, 1, 1);

  if (strcmp (p, "e'fgh") != 0 || strcmp (buf, "abcd") != 0)

    abort ();

  p = "ABCDEF'G\"HI";

  foo (&p, buf, 1, 1);

  if (strcmp (p, "G\"HI") != 0 || strcmp (buf, "ABCDEF") != 0)

    abort ();

  p = "abcdef@gh";

  foo (&p, buf, 0, 0);

  if (strcmp (p, "gh") != 0 || strcmp (buf, "abcdef") != 0)

    abort ();

  return 0;

}