gcc/testsuite/gcc.dg/graphite/run-id-pr47593.c

   1 /* { dg-options "-O2 -fgraphite-identity" } */
   2
   3 struct Foo {
   4   int **p;
   5   int **q;
   6 };
   7
   8 int __attribute__((noinline))
   9 bar (void)
  10 {
  11   struct Foo f;
  12   int j, i = 1;
  13   char *p;
  14   int *x = &i;
  15   int *y = &j;
  16   f.p = &y;
  17   f.q = &x;
  18   p = (char *)&f;
  19   for (j = 0; j < sizeof (int *); ++j)
  20     p++;
  21   return ***(int ***)p;
  22 }
  23 extern void abort (void);
  24 int main()
  25 {
  26   if (bar () != 1)
  27     abort ();
  28   return 0;
  29 }