2002-05-23  David S. Miller  <davem@redhat.com>

	* basic-block.h (CLEANUP_NO_INSN_DEL): Define it.
	* cfgcleanup.c (cleanup_cfg): If it is set do not
	attempt to delete trivially dead insns.
	* except.c (finish_eh_generation): Pass it to cleanup_cfg.
	* toplev.c (rest_of_compilation): Document non-trivial aspect
	the RTL before optimize_save_area_alloca is run.

From-SVN: r53789