gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-6.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-cddce1" } */
   3
   4 struct object { int field; };
   5 void o(struct object *);
   6 int globl;
   7 void t(int x)
   8 {
   9   struct object a, b;
  10   struct object *p;
  11   o(&a);
  12   if (x)
  13     p = &a;
  14   else
  15     p = &b;
  16   p->field = 1;
  17   globl = 0;
  18   return;
  19 }
  20
  21 /* The global store should not prevent deleting the store to p->field.  */
  22
  23 /* { dg-final { scan-tree-dump-not "p_.->field" "cddce1" } } */