r196464 - in /trunk/gcc: ChangeLog except.c exc...

[steven at gcc dot gnu dot org]

Author: steven
Date: Tue Mar  5 14:45:23 2013
New Revision: 196464

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196464
Log:
gcc/
	PR c++/55135
	* except.h (remove_unreachable_eh_regions): New prototype.
	* except.c (remove_eh_handler_splicer): New function, split out
	of remove_eh_handler.
	(remove_eh_handler): Use remove_eh_handler_splicer.  Add comment
	warning about running it on many EH regions one at a time.
	(remove_unreachable_eh_regions_worker): New function, walk the
	EH tree in depth-first order and remove non-marked regions.
	(remove_unreachable_eh_regions): New function.
	* tree-eh.c (mark_reachable_handlers): New function, split out
	from remove_unreachable_handlers.
	(remove_unreachable_handlers): Use mark_reachable_handlers and
	remove_unreachable_eh_regions.
	(remove_unreachable_handlers_no_lp): Use mark_reachable_handlers
	and remove_unreachable_eh_regions.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/except.c
    trunk/gcc/except.h
    trunk/gcc/tree-eh.c