egcs/gcc ChangeLog flow.c jump.c rtl.h toplev.c

[hubicka@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	egcs
Changes by:	hubicka@gcc.gnu.org	2001-07-26 13:36:03

Modified files:
	gcc            : ChangeLog flow.c jump.c rtl.h toplev.c 

Log message:
	* rtl.h (cleanup_barriers): Declare.
	* jump.c (cleanup_barriers): New function.
	* toplev.c (rest_of_compilation): Call cleanup_barriers
	before loop optimizer and after bb_reorder.
	
	* flow.c (back_edge_of_syntactic_loop_p): New.
	(split_edge): Use it.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.10807&r2=1.10808
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/flow.c.diff?cvsroot=gcc&r1=1.443&r2=1.444
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/jump.c.diff?cvsroot=gcc&r1=1.186&r2=1.187
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/rtl.h.diff?cvsroot=gcc&r1=1.278&r2=1.279
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/toplev.c.diff?cvsroot=gcc&r1=1.499&r2=1.500