r124102 - in /branches/dataflow-branch/gcc: Cha...

[zadeck@gcc.gnu.org]

Author: zadeck
Date: Tue Apr 24 14:44:15 2007
New Revision: 124102

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124102
Log:
2007-04-23  Steven Bosscher  <steven@gcc.gnu.org>
	    Kenneth Zadeck <zadeck@naturalbridge.com>

	* df-scan.c (problem_SCAN): Add time variable.
	(df_refs_add_to_chains): Delete the refs vectors before 
	allocating new ones.
	* df-core.c (df_analyze_problem): Push and pop problem specific 
	time vectors.
	* timevar.def (TV_DF_SCAN, TV_DF_RU, TV_DF_RD, TV_DF_LR, TV_DF_UD,
	TV_DF_LIVE, TV_DF_UREC, TV_DF_CHAIN, TV_DF_RI): New problem
	specific time vars.
	* dse.c (positions_needed): Changed to be bitmask from sbitmap.
	(store_info.rhs): New field.
	(free_store_info, step6): Changed positions_needed to be bitmask
	from sbitmap.
	(read_info.begin, read_info.end): Changed to be int.
	(deferred_change): New struct.
	(deferred_change_pool): New variable.
	(step0): Initialize deferred_change_pool.
	(canon_address): Added parameter to cselib_expand_value_rtx and
	improved debugging.
	(clear_rhs_from_active_local_stores, replace_read): New function.
	(record_store, check_mem_read_rtx): Added code to invalidate
	store_info.rhs.  Changed positions_needed to be bitmask from
	sbitmap.
	(step1): Added code to process deferred_change_list.
	(rest_of_handle_dse): Added deferred rescanning.
	* df.h (df_problem.tv_id): New timevar for each problem.
	* cselib.c (expand_loc, cselib_expand_value_rtx): Added code to
	limit the amount of recursion allowed when expanding addresses.
	* cselib.h (cselib_expand_value_rtx): Added max recursion
	parameter.
	* rtl.h (rhs_regno): Renamed tree to x.
	* df-problems.c (df_problem problem_RU, df_problem problem_RD,
	problem_LR, problem_UR, problem_LIVE, problem_UREC, problem_CHAIN,
	problem_RI) Added timevar.
	(df_live_local_finalize): Only update solution if dirty.
	* Makefile.in (dse.o): Added dependencies.
	

Modified:
    branches/dataflow-branch/gcc/ChangeLog.dataflow
    branches/dataflow-branch/gcc/Makefile.in
    branches/dataflow-branch/gcc/cselib.c
    branches/dataflow-branch/gcc/cselib.h
    branches/dataflow-branch/gcc/df-core.c
    branches/dataflow-branch/gcc/df-problems.c
    branches/dataflow-branch/gcc/df-scan.c
    branches/dataflow-branch/gcc/df.h
    branches/dataflow-branch/gcc/dse.c
    branches/dataflow-branch/gcc/rtl.h
    branches/dataflow-branch/gcc/timevar.def