gcc/testsuite/c-c++-common/Winit-self3.c

   1 /* PR c++/105593 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-W -Wall" } */
   4
   5 void bar (int);
   6
   7 static inline int
   8 baz (void)
   9 {
  10 #pragma GCC diagnostic push
  11 #pragma GCC diagnostic ignored "-Winit-self"
  12   int u = u;            /* { dg-bogus "'u' is used uninitialized" } */
  13 #pragma GCC diagnostic pop
  14   return u;
  15 }
  16
  17 void
  18 foo (void)
  19 {
  20   int u = baz ();
  21   bar (u);
  22 }
  23
  24 static inline int
  25 qux (void)
  26 {
  27   int u = u;            /* { dg-warning "'u' is used uninitialized" "" { target c++ } } */
  28   return u;             /* { dg-message "'u' was declared here" "" { target c++ } .-1 } */
  29 }
  30
  31 void
  32 corge (void)
  33 {
  34   int u = qux ();
  35   bar (u);
  36 }