gcc/testsuite/c-c++-common/pr43395.c

   1 /* PR c/43395 */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target label_values } */
   4
   5 void *
   6 foo (void)
   7 {
   8  lab: /* { dg-line foo_lab } */
   9   return &&lab;
  10 /* { dg-warning "function returns address of label" "" { target c } .-1 } */
  11 /* { dg-warning "address of label" "" { target c++ } foo_lab } */
  12 }
  13
  14 void *
  15 bar (void)
  16 {
  17   __label__ lab;
  18  lab: /* { dg-line bar_lab } */
  19   return &&lab;
  20 /* { dg-warning "function returns address of label" "" { target c } .-1 } */
  21 /* { dg-warning "address of label" "" { target c++ } bar_lab } */
  22 }
  23
  24 void *
  25 baz (void)
  26 {
  27   int i; /* { dg-line baz_i } */
  28   return &i;
  29 /* { dg-warning "function returns address of local variable" "" { target c } .-1 } */
  30 /* { dg-warning "address of local variable" "" { target c++ } baz_i } */
  31 }