flow.c (find_basic_blocks): Don't create a new basic block for calls in a LIBCALL...

flow.c (find_basic_blocks): Don't create a new basic block for calls in a LIBCALL block.

	* flow.c (find_basic_blocks): Don't create a new basic block
	for calls in a LIBCALL block.
	* flow.c (flow_analysis): Be consistent with find_basic_blocks in
	determining when a new basic block starts.
	* flow.c (find_basic_blocks): A CALL_INSN that can throw starts
	a new basic block.
	(find_basic_blocks_1): Likewise.
	* except.c (get_dynamic_handler_chain): Only make the call once per
 	function.
	* except.c (expand_fixup_region_end): New fn.
	(expand_fixup_region_start): Likewise.
	(expand_eh_region_start_tree): Store cleanup into finalization here.
	* stmt.c (expand_cleanups): Use them to protect fixups.
	* except.c (get_dynamic_handler_chain): Build up a FUNCTION_DECL.
	* optabs.c (init_optabs): Lose get_dynamic_handler_chain_libfunc.
	* expr.h: Likewise.
cp/:
	* decl.c (copy_args_p): Handle copy elision for types with virtual
 	bases.
  	* call.c (build_over_call): Likewise.
	* exception.cc (__cp_pop_exception): Lose handler arg.
	* except.c (do_pop_exception): Likewise.
	(push_eh_cleanup): Let the cleanup mechanism supply the handler.
	(expand_end_catch_block): Likewise.

From-SVN: r17856