egcs/gcc gcse.c toplev.c ChangeLog.RA ra.c con ...

[matz@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	egcs
Branch: 	new-regalloc-branch
Changes by:	matz@gcc.gnu.org	2001-08-28 10:20:33

Modified files:
	gcc            : gcse.c toplev.c ChangeLog.RA ra.c 
	gcc/config/i386: i386.h 

Log message:
	Try the third time:
	* gcse.c (store_killed_in_insn): Even pure/const calls kill
	argument stack slots, and all things aliased to
	CALL_INSN_FUNCTION_USAGE.
	
	* toplev.c (rest_of_compilation): Preserve basic blocks in
	delete_trivially_dead_insns(), initialize
	rebuild_label_notes_after_reload.
	
	* i386/i386.h (LIMIT_RELOAD_CLASS): Also limit LEGACY_REGS.
	
	* ra.c (NO_REMAT): New macro.
	(struct df *df): Staticify.
	(ra_max_regno, ra_reg_renumber): New.
	(struct undef_table_s): Also handle index 15.
	(undef_to_bitmap): case 0xF: remove, default: only handle
	lengths as powers of two.
	(live_out_1): Remove the x86 hack.
	(freeze): Call freeze_moves() again.
	(emit_colors): Initialize ra_reg_renumber[] instead of reg_renumber[].
	(init_ra): Init ra_reg_renumber.
	(rematerializable): Return 0 if NO_REMAT.
	(setup_renumber): New...
	(reg_alloc): ... call it.  Call update_equiv_regs() after allocation.
	Don't calculate DU- and UD-chains if NO_REMAT.
	Preserve basic blocks over delete_trivially_dead_insns().
	Call allocate_reg_info() to not allocate reg_renumber.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/gcse.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.113.2.6&r2=1.113.2.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/toplev.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.418.2.9&r2=1.418.2.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/ChangeLog.RA.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.47&r2=1.1.2.48
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/ra.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.33&r2=1.1.2.34
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/config/i386/i386.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.146.2.3&r2=1.146.2.4