egcs/gcc ChangeLog basic-block.h flow.c toplev.c

[hubicka@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	egcs
Changes by:	hubicka@gcc.gnu.org	2001-07-24 16:42:40

Modified files:
	gcc            : ChangeLog basic-block.h flow.c toplev.c 

Log message:
	* flow.c (try_simplify_condjump): Avoid duplicated edges.
	(verify_flow_info): Check for duplicated edges; clarify
	error reporting.
	
	* flow.c (block_label): Update basic_block_for_insn.
	(commit_edge_insertions): Call compute_bb_for_insn.
	
	* flow.c (purge_dead_edges): Handle conditional jumps and conditional
	returns too.
	
	* flow.c (redirect_edge_and_branch,
	try_optimize_cfg): Use redirect_edge_succ_nodup
	(redirect_edge_succ_nodup): New.
	* basic_block.h (redirect_edge_succ_nodup): Declare.
	
	* toplev.c (rest_of_compilation): Rebuild CFG before cfg_cleanup
	after gcse.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.10776&r2=1.10777
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/basic-block.h.diff?cvsroot=gcc&r1=1.104&r2=1.105
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/flow.c.diff?cvsroot=gcc&r1=1.439&r2=1.440
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/toplev.c.diff?cvsroot=gcc&r1=1.497&r2=1.498