egcs/./gcc ChangeLog flow.c haifa-sched.c jump ...

[Jeffrey A. Law]

CVSROOT:	/egcs/carton/cvsfiles
Module name:	egcs
Changes by:	law@egcs.cygnus.com	98/10/16 00:08:52

Modified files:
	gcc            : ChangeLog flow.c haifa-sched.c jump.c reload1.c 
	                 reorg.c rtlanal.c sched.c tm.texi toplev.c 
	gcc/config/gmicro: gmicro.h 
	gcc/config/i386: i386.h 
	gcc/config/m32r: m32r.h 
	gcc/config/m88k: m88k.h 
	gcc/config/sh  : sh.h 

Log message:
	* flow.c (life_analysis_1): Do not clobber regs_ever_live after
	reload.  Never perform rescans of the insn chain after reload.
	(propagate_block): Do not delete insn or create new autoinc addressing
	modes after reload.
	
	* jump.c (jump_optimize): Unconditionally use the code that was
	previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
	* reload1.c (reload): When reloading is finished, delete all
	REG_DEAD and REG_UNUSED notes.
	(emit_reload_insns): Delete all code that was conditional on
	PRESERVE_DEATH_INFO_REGNO_P.
	(no_longer_dead_regs): Delete variable.
	(reload_cse_delete_death_notes): Delete function.
	(reload_cse_no_longer_dead): Delete function.
	(reload_cse_regs_1): Delete all code to handle deletion of death
	notes.
	(reload_cse_noop_set_p): Likewise.
	(reload_cse_simplify_set): Likewise.
	(reload_cse_simplify_operands): Likewise.
	(reload_cse_move2add): Likewise.
	* reorg.c (used_spill_regs): Delete declaration.
	(max_label_num_after_reload): Delete declaration.
	(find_dead_or_set_registers): Don't assume that spill regs are
	dead at a CODE_LABEL.
	* rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
	even after reload.
	* sched.c (sched_analyze_insn): Likewise.
	(update_flow_info): Likewise.
	* haifa-sched.c (sched_analyze_insn): Likewise.
	(update_flow_info): Likewise.
	* tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
	* toplev.c (max_label_num_after_reload): Delete variable.
	(rest_of_compilation): Don't set max_label_num_after_reload.
	Call life_analysis after reload_cse_regs if optimizing.
	* config/gmicro/gmicro.h: Delete comment referring to
	PRESERVE_DEATH_INFO_REGNO_P.
	* config/i386/i386.h: Likewise.
	* config/m88k/m88k.h: Likewise.
	* config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
	* config/sh/sh.h: Likewise.
	Accurate REG_DEAD notes after reload.