[Bug debug/19327] [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

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

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2005-01-17 12:54 -------
It's

2005-01-03  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR debug/17924
	Fix PR debug/19191
	* dwarf2out.c (block_ultimate_origin): Follow decl origin if origin
	is a decl.
	* gimple-low.c (mark_blocks_with_used_vars): New function.
	(mark_blocks_with_used_subblocks): Ditto.
	(mark_used_blocks): Ditto.
	(pass_mark_used_blocks): New pass.
	* tree-inline.c: Include debug.h.
	(expand_call_inline): Call outlining_inline_function here.
	* tree-optimize.c (init_tree_optimization_passes): Add
	pass_mark_used_blocks. 
	* tree-pass.h (pass_mark_used_blocks): New.
	* Makefile.in (tree-inline.o): Add debug.h dependency.

The DBX back-end is now asked to output debug info for the inlined instance of
the nested function r in

main()
{
#ifndef NO_TRAMPOLINES
  void p(void ((*f) (void ())))
    {
      void r()
	{
	  foo ();
	}

      f(r);
    }

  void q(void ((*f)()))
    {
      f();
    }

  p(q);
#endif
  exit(0);
}

which is created when p is inlined.  I think it doesn't support that.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |debug


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327