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	* fwprop.c (forward_propagate_into): Return bool.  If
	any changes are made, -fnon-call-exceptions is used and
	REG_EH_REGION note is present, call purge_dead_edges
	and return true if it purged anything.
	(fwprop_addr): Adjust callers, call cleanup_cfg (0) if
	any EH edges were purged.

	* g++.dg/opt/pr47366.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@169100 138bc75d-0d04-0410-961f-82ee72b054a4