Subversion Repositories openrisc

// PR tree-optimization/39557

// invalid post-dom info leads to infinite loop

// { dg-do run }

// { dg-options "-Wall -fno-exceptions -O2 -fprofile-use -fno-rtti" }

struct C

{

 virtual const char *bar () const;

};

struct D

{

 D () : d1 (0) { }

 C *d2[4];

 int d1;

 inline const C & baz (int i) const { return *d2[i]; }

};

struct E

{

 unsigned char e1[2];

 D e2;

 bool foo () const { return (e1[1] & 1) != 0; }

 virtual const char *bar () const __attribute__ ((noinline));

};

const char *

C::bar () const

{

 return 0;

}

C c;

const char *

E::bar () const

{

 const char *e = __null;

 if (foo () && (e = c.C::bar ()))

   return e;

 for (int i = 0, n = e2.d1; i < n; i++)

   if ((e = e2.baz (i).C::bar ()))

     return e;

 return e;

}

int

main ()

{

 E e;

 e.bar ();

} // { dg-message  "note: file" "" }