O3-pr49087.c

   1 /* { dg-do compile } */
   2
   3 static char func2() { }
   4
   5 struct S0
   6 {
   7  int t;
   8 };
   9
  10 int g;
  11
  12 struct S0 s0;
  13
  14 int
  15 foo (int arg)
  16 {
  17   int *ptr = &g;
  18   int i, j;
  19   for (i = 0; i < 10; i += 1)
  20     {
  21       for (j = 0; j < 1; j += 1)
  22         {
  23           int k;
  24           if (arg)
  25             {
  26               int l;
  27               for (k = 1; arg < 10; arg = func2 ())
  28                 {
  29                   return l;
  30                 }
  31             }
  32           *ptr = func2 () ^ s0.t;
  33         }
  34     }
  35 }
  36
  37 /* { dg-final { cleanup-tree-dump "vect" } } */