2005-01-05 Daniel Berlin <dberlin@dberlin.org>

2005-01-05  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR middle-end/19286
	Fix PR debug/19267
	* dwarf2out.c (gen_subprogram_die): If we've already tried to
	output this subprogram, simply ignore this attempt to do it again.
	(add_abstract_origin_attribute): Don't abort trying to add the abstract
	origin attribute if it's not possible.
	(gen_block_die): Don't ignore subblocks of "unused" blocks.
	(decls_for_scope): Ditto.
	* gimple-low.c (mark_blocks_with_used_subblocks): Remove.
	(mark_used_blocks): Don't call mark_blocks_with_used_subblocks.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@92991 138bc75d-0d04-0410-961f-82ee72b054a4