re PR rtl-optimization/62078 (ICE: verify_flow_info failed: missing REG_EH_REGION note at the end of bb 2 with -fdelete-dead-exceptions)

	PR rtl-optimization/62078
	* dse.c: Include cfgcleanup.h.
	(rest_of_handle_dse): For -fnon-call-exceptions, if DSE removed
	anything call purge_all_dead_edges and cleanup_cfg at the end
	of the pass.

	* g++.dg/opt/pr62078.C: New test.

From-SVN: r219970