http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49032
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-05-19 17:07:35 UTC --- Created attachment 24293 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24293 gcc47-pr49032.patch Untested fix. Works on this testcase, as well as when s is actually forced to be output (e.g. through inline asm). I'm not a stabs user (are there any left anyway?), so don't know whether it doesn't decrease debug info quality (if we can speak about debug info quality in stabs case), but from I understand at least the global_decl debug hooks are called at least by C/C++ FEs after cgraph_finalize_compilation_unit has been called and thus IMHO the patch should only change anything when the vars aren't output. Guess one could put there instead gcc_unreachable (); instead of return NULL; and see how often it triggers during -gstabs bootstrap.
