gcc/gcc ChangeLog common.opt flags.h gcse.c rt ...

[dje@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	dje@gcc.gnu.org	2004-03-03 16:32:46

Modified files:
	gcc            : ChangeLog common.opt flags.h gcse.c rtl.h 
	                 opts.c toplev.c passes.c params.def params.h 
	gcc/doc        : invoke.texi 

Log message:
	2004-03-03  Mostafa Hagog  <mustafa@il.ibm.com>
	
	* common.opt: Add description of the new -fgcse-after-reload flag.
	
	* flags.h (flag_gcse_after_reload): Declaration of global variable.
	
	* gcse.c (reg_used_on_edge ,reg_set_between_after_reload_p,
	reg_used_between_after_reload_p, rtx get_avail_load_store_reg,
	is_jump_table_basic_block, bb_has_well_behaved_predecessors,
	get_bb_avail_insn, hash_scan_set_after_reload,
	compute_hash_table_after_reload, eliminate_partially_redundant_loads,
	gcse_after_reload, get_bb_avail_insn): New functions to implement
	gcse-after-reload.
	(gcse_after_reload_main): New function, the main entry point to
	gcse-after-reload.
	
	* rtl.h (gcse_after_reload_main): Declaration of the new function.
	
	* opts.c (common_handle_option): Handle the -fgcse-after-reload flag.
	
	* toplev.c (flag_gcse_after_reload): Initialization.
	
	* passes.c (rest_of_handl_gcse2): Call gcse_after_reload_main.
	
	* params.def (PARAM_GCSE_AFTER_RELOAD_PARTIAL_FRACTION,
	PARAM_GCSE_AFTER_RELOAD_CRITICAL_FRACTION): New parameters for tuning
	the gcse after reload optimization.
	
	* params.h (GCSE_AFTER_RELOAD_PARTIAL_FRACTION,
	GCSE_AFTER_RELOAD_CRITICAL_FRACTION): Two macros to access the tuning
	parameters.
	
	* doc/invoke.texi: Documentation for the new flag gcse-after-reload.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3019&r2=2.3020
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/common.opt.diff?cvsroot=gcc&r1=1.28&r2=1.29
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/flags.h.diff?cvsroot=gcc&r1=1.132&r2=1.133
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/gcse.c.diff?cvsroot=gcc&r1=1.293&r2=1.294
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/rtl.h.diff?cvsroot=gcc&r1=1.461&r2=1.462
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/opts.c.diff?cvsroot=gcc&r1=1.59&r2=1.60
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/toplev.c.diff?cvsroot=gcc&r1=1.886&r2=1.887
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/passes.c.diff?cvsroot=gcc&r1=2.2&r2=2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/params.def.diff?cvsroot=gcc&r1=1.37&r2=1.38
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/params.h.diff?cvsroot=gcc&r1=1.16&r2=1.17
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/invoke.texi.diff?cvsroot=gcc&r1=1.420&r2=1.421