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gcc/gcc ChangeLog.lno cfghooks.c cfgloopmanip. ...


CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	lno-branch
Changes by:	rakdver@gcc.gnu.org	2004-01-29 16:03:43

Modified files:
	gcc            : ChangeLog.lno cfghooks.c cfgloopmanip.c 
	                 loop-iv.c loop-unroll.c loop-unswitch.c rtl.h 

Log message:
	* cfghooks.c (split_block): Update probabilities.
	
	* cfgloopmanip.c (loopify): Always redirect branch edge to the new
	loop.
	* loop-iv.c (canon_condition, simplify_using_condition): Export.
	(check_simple_exit): Do not allow cc mode registers.
	* loop-unroll.c (unroll_loop_runtime_iterations): Use
	compare_and_jump_seq.
	* loop-unswitch.c (may_unswitch_on_p): Renamed to may_unswitch_on,
	returns the condition, use iv_analyse.
	(compare_and_jump_seq): New function.
	(unswitch_loops): Call iv_analysis_done.
	(unswitch_single_loop, unswitch_loop): Handle nontrivial invariants.
	* rtl.h (compare_and_jump_seq, canon_condition,
	simplify_using_condition): Declare.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.lno.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.39&r2=1.1.2.40
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfghooks.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.4.2.3&r2=1.1.2.4.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfgloopmanip.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.3.2.11.2.3&r2=1.3.2.11.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop-iv.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.4.1&r2=1.1.4.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop-unroll.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.2.2.6&r2=1.2.2.6.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop-unswitch.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.2.2.6.2.4&r2=1.2.2.6.2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/rtl.h.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.362.2.30.2.3&r2=1.362.2.30.2.4


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