gcc/

gcc/
	* dse.c: Include rtl-iter.h.
	(check_mem_read_rtx): Change void * parameter to real type.
	Remove return value.
	(check_mem_read_use): Fix comment.  Use FOR_EACH_SUBRTX_PTR instead of
	for_each_rtx.  Don't handle null rtxes.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@214635 138bc75d-0d04-0410-961f-82ee72b054a4