gcc/testsuite/c-c++-common/pr27336.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdelete-null-pointer-checks -fdump-tree-vrp1" } */
   3
   4 struct B { int x; };
   5 extern void g3(struct B *that)  __attribute__((nonnull));
   6 int f3(struct B *a)
   7 {
   8   g3(a);
   9   return a != (void *)0;
  10 }
  11
  12 /* { dg-final { scan-tree-dump "return 1;" "vrp1" } } */