gcc/testsuite/gcc.c-torture/execute/20071018-1.c

   1 extern void abort(void);
   2
   3 struct foo {
   4   int rank;
   5   char *name;
   6 };
   7
   8 struct mem {
   9   struct foo *x[4];
  10 };
  11
  12 void __attribute__((noinline)) bar(struct foo **f)
  13 {
  14   *f = __builtin_malloc(sizeof(struct foo));
  15 }
  16 struct foo * __attribute__((noinline, noclone)) foo(int rank)
  17 {
  18   void *x = __builtin_malloc(sizeof(struct mem));
  19   struct mem *as = x;
  20   struct foo **upper = &as->x[rank * 8 - 5];
  21   *upper = 0;
  22   bar(upper);
  23   return *upper;
  24 }
  25
  26 int main()
  27 {
  28   if (foo(1) == 0)
  29     abort ();
  30   return 0;
  31 }