2004-02-21  Daniel Jacobowitz  <drow@mvista.com>

	* dwarf2read.c (struct partial_die_info): Use bitfields and
	rearrange members for packing.  Replace spec_attr with spec_offset.
	(load_partial_dies): Only follow structures for C++.
	(load_partial_die): Use memset.  Save specification attributes
	only as offsets.
	(fixup_partial_die): Adjust to use spec_offset.

2004-02-21  Daniel Jacobowitz  <drow@mvista.com>

	* dwarf2read.c (struct dwarf2_cu): Add partial_die_obstack.
	(splay_tree_obstack_allocate, splay_tree_obstack_deallocate): New
	functions.
	(dwarf2_build_psymtabs_hard): Use splay_tree_new_with_allocator
	and obstack_free to manage partial_dies.
	(load_partial_dies): Allocate partial DIEs on the obstack.  Don't
	initialize the splay tree here.

2004-02-21  Daniel Jacobowitz  <drow@mvista.com>

	* dwarf2read.c (skip_leb128, peek_die_abbrev, skip_one_die)
	(skip_children): New functions.
	(locate_pdi_sibling): Call skip_children.
	(load_partial_dies): Use peek_die_abbrev and skip_one_die.

2004-02-21  Daniel Jacobowitz  <drow@mvista.com>

	* dwarf2read.c (find_partial_die, fixup_partial_die): New functions,
	broken out from read_partial_die.
	(read_partial_die): Remove function.
	(dwarf2_build_psymtabs_hard): Update comments.
	(scan_partial_symbols): Use the new functions.  Reduce copying of
	partial DIEs.

2004-02-21  Daniel Jacobowitz  <drow@mvista.com>

	* dwarf2read.c: Include "splay-tree.h".
	(struct dwarf2_cu): Add splay tree for partial DIEs.
	(struct partial_die_info): Move after struct attribute.
	Add has_specification, spec_attr, die_parent, die_child,
	and die_sibling fields.
	(load_partial_dies): New function.
	(load_partial_die): New function, broken out from read_partial_die.
	Correct setting of part_die->offset.  Save any specification
	attributes for later.
	(read_partial_die): Look up DIEs in the splay tree.
	(dwarf2_build_psymtabs_hard): Initialize partial_dies.  Call
	load_partial_die to read in the compilation unit DIE.  Call
	load_partial_dies.  Free the splay tree after use.
	(scan_partial_symbols): Follow the die_sibling chain.
	(add_partial_structure): Use die_child and die_sibling instead of
	read_partial_die and locate_pdi_sibling.
	(add_partial_enumeration): Likewise.
	(locate_pdi_sibling): Use load_partial_die instead of
	read_partial_die.
	(is_type_tag): New function.

	* Makefile.in (dwarf2read.o): Update dependencies.