gcc/testsuite/g++.dg/tree-ssa/pr20458.C

   1 /* { dg-do run } */
   2 /* { dg-options "-O2" } */
   3
   4 /* The tail call optimization would inapproriately tail call the
   5    destructors due to not recognizing a call clobbered variable */
   6 namespace std
   7 {
   8         class locale
   9         {
  10                 public:
  11                         locale();
  12                         ~locale();
  13         };
  14 }
  15
  16 struct B
  17 {
  18         std::locale _M_buf_locale;
  19         virtual ~B() {}
  20 };
  21
  22 struct C : public B
  23 {
  24         char *s;
  25 };
  26
  27 void foo ()
  28 {
  29         C c;
  30 }
  31
  32 int main()
  33 {
  34         foo ();
  35         return 0;
  36 }
  37