gcc/testsuite/gcc.dg/torture/pr59166.c

   1 /* PR rtl-optimization/59166 */
   2 /* { dg-additional-options "-fcompare-debug" } */
   3
   4 int a, b, c, f, g;
   5
   6 void
   7 foo ()
   8 {
   9   for (; b; b++)
  10     for (; f; f = g)
  11       for (; a;)
  12         ;
  13 }
  14
  15 static int
  16 bar (int p)
  17 {
  18   short d;
  19   if (c)
  20     {
  21       for (; f; f = g);
  22       foo ();
  23       d = p;
  24       char e = d;
  25       if (p)
  26         return 1;
  27     }
  28   return p;
  29 }
  30
  31 int
  32 main ()
  33 {
  34   bar (0);
  35   bar (g);
  36   return 0;
  37 }