gcc/gcc ChangeLog bb-reorder.c dbxout.c dwarf2 ...

[ctice at gcc dot gnu dot org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	ctice@gcc.gnu.org	2005-04-27 21:35:23

Modified files:
	gcc            : ChangeLog bb-reorder.c dbxout.c dwarf2out.c 
	                 function.h opts.c output.h passes.c varasm.c 

Log message:
	Correct fixes for various hot/cold partitioning concerns.
	2005-04-27  Caroline Tice  <ctice@apple.com>
	
	* bb-reorder.c (find_rarely_executed_basic_blocks_and_crossing_edges):
	Remove targetm.have_named_sections test.
	(fix_edges_for_rarely_executed_code): Likewise.
	(insert_section_boundary_note): Likewise.
	(reorder_basic_blocks): Check partitioning flag before calling
	verify_hot_cold_block_grouping.
	* dbxout.c (dbxout_function_end): Get hot/cold section labels from
	the function struct rather than global variables.
	* dwarf2out.c (COLD_TEXT_SECTION_LABEL): New macro.
	(COLD_END_LABEL): Likewise
	(cold_text_section_label): New static global variable.
	(cold_end_label): Likewise.
	(dwarf2out_switch_text_section): Get hot/cold section labels from
	the function struct rather than global variables; test to make sure
	cfun is defined.
	(output_aranges): Use cold_text_section_label and cold_end_label;
	check partitioning flag before putting out delta.
	(output_ranges): Remove incorrect code attempting to use
	hot/cold labels.
	(output_line_info): Get cold section label from function struct; test
	to make sure cfun is defined.
	(add_location_or_const_value_attribute): Likewise.
	(dwarf2out_var_location): Likewise.
	(dwarf2out_init): Generate cold_text_section_label and cold_end_label;
	write out cold_text_section_label if partition flag is set.
	(dwarf2out_finish): Write out cold_end_label if partition flag is set;
	* function.h (struct function): Add new fields to point to hot/cold
	section labels: hot_section_label, cold_section_label,
	hot_section_end_label and cold_section_end_label; also add new field
	for cold text section name, unlikely_text_section_name.
	* opts.c (decode_options): Turn off partitioning flag if
	!targetm.have_named_sections.
	* output.h (hot_section_label): Remove.
	(hot_section_end_label): Remove.
	(cold_section_end_label): Remove.
	(unlikely_section_label): Remove.
	(unlikely_text_section_name): Remove.
	* passes.c (rest_of_handle_final):  Remove extra blank line.
	* varasm.c (unlikely_section_label): Remove.
	(hot_section_label): Remove.
	(hot_section_end_label): Remove.
	(cold_section_end_label): Remove.
	(unlikely_text_section_name):  Remove.
	(initialize_cold_section_name): Modify to call
	targetm.strip_name_encoding; to store cold section name in current
	function struct, if it exists; and to only use the decl_section_name
	if flag_named_sections is true.
	(unlikely_text_section): Modify to get section name out of current
	function struct, if there is one; otherwise build it from
	UNLIKELY_EXECUTED_TEXT_SECTION_NAME.
	(in_unlikely_text_section): Likewise.
	(named_section): Modify to get/put cold section name in current function
	struct, if there is one.
	(function_section):  Change 'bool unlikely' to 'int reloc'; check
	targetm.have_named_sections before calling named_section.
	(current_function_section): Likewise.
	(assemble_start_function): Modify to get/put unlikely_text_section_name
	in current function struct; modify to get hot/cold section labels
	from function struct; initialize labels using
	ASM_GENERATE_INTERNAL_LABEL;
	test partitioning flag before writing out hot section label.
	(assemble_end_function): Test partitioning flag before writing out
	hot/cold section labels.
	(default_section_type_flags_1):  Get cold text section name from
	function struct if there is one; Set flags correctly for
	cold text section if there is not a current function struct.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8500&r2=2.8501
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/bb-reorder.c.diff?cvsroot=gcc&r1=1.101&r2=1.102
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dbxout.c.diff?cvsroot=gcc&r1=1.231&r2=1.232
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarf2out.c.diff?cvsroot=gcc&r1=1.587&r2=1.588
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/function.h.diff?cvsroot=gcc&r1=1.148&r2=1.149
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/opts.c.diff?cvsroot=gcc&r1=1.104&r2=1.105
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/output.h.diff?cvsroot=gcc&r1=1.157&r2=1.158
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/passes.c.diff?cvsroot=gcc&r1=2.89&r2=2.90
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/varasm.c.diff?cvsroot=gcc&r1=1.506&r2=1.507