Subversion Repositories openrisc_me

/* PR target/6838 from cato@df.lth.se.

   cris-elf got an ICE with -O2: the insn matching

      (insn 49 48 52 (parallel[

                  (set (mem/s:HI (plus:SI (reg/v/f:SI 0 r0 [24])

                              (const_int 8 [0x8])) [5 <variable>.c+0 S2 A8])

                      (reg:HI 2 r2 [27]))

                  (set (reg/f:SI 2 r2 [31])

                      (plus:SI (reg/v/f:SI 0 r0 [24])

                          (const_int 8 [0x8])))

              ] ) 24 {*mov_sidehi_mem} (nil)

          (nil))

   forced a splitter through the output pattern "#", but there was no

   matching splitter.  */

struct xx

 {

   int a;

   struct xx *b;

   short c;

 };

int f1 (struct xx *);

void f2 (void);

int

foo (struct xx *p, int b, int c, int d)

{

  int a;

  for (;;)

    {

      a = f1(p);

      if (a)

        return (0);

      if (b)

        continue;

      p->c = d;

      if (p->a)

        f2 ();

      if (c)

        f2 ();

      d = p->c;

      switch (a)

        {

        case 1:

          if (p->b)

            f2 ();

          if (c)

            f2 ();

        default:

          break;

        }

    }

  return d;

}

int main (void)

{

  struct xx s = {0, &s, 23};

  if (foo (&s, 0, 0, 0) != 0 || s.a != 0 || s.b != &s || s.c != 0)

    abort ();

  exit (0);

}

int

f1 (struct xx *p)

{

  static int beenhere = 0;

  if (beenhere++ > 1)

    abort ();

  return beenhere > 1;

}

void

f2 (void)

{

  abort ();

}