[Bug c++/25878] Excessive memory and compile-time with std::map init sequence

["rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #2 from rguenth at gcc dot gnu dot org  2006-01-20 15:26 -------
Basically, the initialization sequence expands to a sequence of (.03.gimple):

              __comp_ctor  (&D.68628);
              try
                {
                  __comp_ctor  (&D.68629, &"ab"[0], &D.68628);
                  try
                    {
                      D.70658 = &this->iso639_1;
                      D.70666 = operator[] (D.70658, &D.68629);
                      D.70667 = operator= (D.70666, &"Abkhazian"[0]);
                      __comp_ctor  (&D.68625);
                      try
                        {
                          __comp_ctor  (&D.68626, &"abk"[0], &D.68625);
                          try
                            {
                              D.70659 = &this->iso639_2;
                              D.70668 = operator[] (D.70659, &D.68626);
                              operator= (D.70668, D.70667);
                            }
                            }
                          finally
                            {
                              __comp_dtor  (&D.68626);
                            }
                        }
                      finally
                        {
                          __comp_dtor  (&D.68625);
                        }
                    }
                  finally
                    {
                      __comp_dtor  (&D.68629);
                    }
                }
              finally
                {
                  __comp_dtor  (&D.68628);
                }

Now do this 472 times and you're screwed.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25878