gcc/testsuite/gcc.c-torture/compile/pr45085.c

   1 /* { dg-options "-O2  -Wuninitialized" } */
   2 struct S { char *s1; long s2; };
   3 struct T { int t1; long t2; long t3; };
   4 extern int fn2 (void);
   5 extern int fn3 (struct T);
   6 extern struct T fn4 ();
   7 extern int fn5 (char **, long *, int);
   8 extern void fn6 (void);
   9 extern void fn7 (void *);
  10 struct S *fn10 ();
  11 static int p;
  12 static void *q;
  13 extern struct T r;
  14
  15 static struct T
  16 fn8 (struct T x, int y)
  17 {
  18   struct S *u = fn10 ();
  19   int v = fn5 (&u->s1, &u->s2, 0);
  20   while (1)
  21     {
  22       if (p)
  23 fn6 ();
  24       if (fn3 (x))
  25 return fn4 ();
  26       if (y & 1)
  27 return r;
  28       v = fn5 (&u->s1, &u->s2, 1);
  29     }
  30 }
  31
  32 struct T
  33 fn9 (struct T x, int y)
  34 {
  35   struct T t = fn8 (x, y);
  36   if (fn2 ())
  37     fn7 (q);
  38   return t;
  39 }
  40
  41 void *
  42 fn1 (void)
  43 {
  44   return fn9;
  45 }