r165646 - in /trunk/gcc: ChangeLog tree-cfg.c t...

[ebotcazou at gcc dot gnu dot org]

Author: ebotcazou
Date: Mon Oct 18 16:44:38 2010
New Revision: 165646

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165646
Log:
	* tree-flow.h (gimple_purge_all_dead_abnormal_call_edges): Declare.
	* tree-cfg.c (gimple_purge_dead_abnormal_call_edges): Move around and
	rewrite modelled on gimple_purge_dead_eh_edges.
	(gimple_purge_all_dead_abnormal_call_edges): New function.
	* tree-inline.c (expand_call_inline): Call gimple_purge_dead_eh_edges
	directly instead of through gimple_purge_dead_abnormal_call_edges.
	* tree-ssa-pre.c (need_ab_cleanup): New static variable.
	(eliminate): Set bit in need_ab_cleanup for the basic block if we have
	removed AB side-effects from one of its statements.
	(init_pre): Initialize need_ab_cleanup.
	(fini_pre): Purge dead abnormal call edges and clean up the CFG if bits
	are set in need_ab_cleanup.  Free need_ab_cleanup afterward.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-cfg.c
    trunk/gcc/tree-flow.h
    trunk/gcc/tree-inline.c
    trunk/gcc/tree-ssa-pre.c