gcc/testsuite/gcc.dg/ipa/vrp4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-ipa-cp-details -fdump-tree-vrp1" } */
   3
   4 static __attribute__((noinline, noclone))
   5 int foo (int *p)
   6 {
   7   if (!p)
   8     return 0;
   9   *p = 1;
  10 }
  11
  12 struct st
  13 {
  14   int a;
  15   int b;
  16 };
  17
  18 int bar (struct st *s)
  19 {
  20
  21   if (!s)
  22     return 0;
  23   foo (&s->a);
  24   foo (&s->b);
  25 }
  26
  27 /* { dg-final { scan-ipa-dump "Setting nonnull for 0" "cp" } } */
  28 /* { dg-final { scan-tree-dump-times "if" 1 "vrp1" } } */