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[Bug tree-optimization/18601] [4.0 Regression] tree cfglceanup is slow


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-12-06 20:22 -------
Subject: Bug 18601

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	kazu@gcc.gnu.org	2004-12-06 20:22:02

Modified files:
	gcc            : ChangeLog tree-cfg.c tree-flow.h 

Log message:
	PR tree-optimization/18601
	* tree-cfg.c (thread_jumps, thread_jumps_from_bb): Removed.
	(tree_forwarder_block_p): Do not consider blocks that are its own
	successors forwarders.
	(cleanup_forwarder_blocks, remove_forwarder_block): New functions.
	(cleanup_tree_cfg): Use cleanup_forwarder_blocks instead of
	thread_jumps.
	* tree-flow.h (bb_ann_d): Remove forwardable.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6726&r2=2.6727
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&r1=2.132&r2=2.133
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&r1=2.73&r2=2.74



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18601


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