gcc/testsuite/gcc.dg/torture/pr57478.c

   1 /* { dg-do compile } */
   2
   3 typedef struct Node Node;
   4
   5 struct Node
   6 {
   7   Node *Pred, *Suc;
   8   Node *SubBestPred;
   9   Node *SubBestSuc;
  10 };
  11
  12 void
  13 foo (Node *N)
  14 {
  15   do
  16     {
  17       N->SubBestPred = N->Pred;
  18       N->SubBestSuc = N->Suc;
  19     }
  20   while (N = N->Suc);
  21 }