gcc/testsuite/gcc.dg/Warray-bounds-33.c

   1 /* PR tree-optimization/86741 - ICE in -Warray-bounds indexing into
   2    an object of incomplete type
   3    { dg-do compile }
   4    { dg-options "-O2 -Wall" }  */
   5
   6 struct S
   7 {
   8   int s;
   9 };
  10
  11 void f (void);
  12
  13 void test_void (void)
  14 {
  15   extern void v;
  16   struct S *b = (struct S*)&v;
  17   if (b->s)
  18     f ();
  19 }
  20
  21 void test_incomplete_enum (void)
  22 {
  23   extern enum E e;
  24   struct S *b = (struct S*)&e;
  25   if (b->s)
  26     f ();
  27 }
  28
  29 void test_func (void)
  30 {
  31   struct S *b = (struct S*)&f;
  32   if (b->s)
  33     f ();
  34 }
  35
  36 /* { dg-prune-output "taking address of expression of type .void." } */