gcc/testsuite/gcc.dg/pr45071.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -ftree-vrp -ftree-vectorize" } */
   3
   4 struct A
   5 {
   6   int i;
   7 };
   8
   9 struct B
  10 {
  11   struct A a;
  12 };
  13
  14 extern void f4 (void *);
  15
  16 inline void
  17 f3 (struct A *a)
  18 {
  19   f4 (a);
  20   while (a->i);
  21 }
  22
  23 static inline void
  24 f2 (struct B *b)
  25 {
  26   f3 (&b->a);
  27 }
  28
  29 void
  30 f1 ()
  31 {
  32   struct B *b = 0;
  33   f2 (b);
  34 }