gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-19.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-ccp1" } */
   3
   4 struct f { int i; };
   5 int g()
   6 {
   7   struct f a, *a1;
   8   int *i;
   9   a.i = 1;
  10   a1 = &a;
  11   i = &a1->i;
  12   return *i;  /* This should be turned into a.i */
  13 }
  14
  15 /* { dg-final { scan-tree-dump "= a.i;" "ccp1" } } */
  16 /* { dg-final { cleanup-tree-dump "ccp1" } } */