2014-08-21  David Malcolm  <dmalcolm@redhat.com>

	* rtl.h (try_split): Strengthen return type from rtx to rtx_insn *.

	* emit-rtl.c (try_split): Likewise, also for locals "before" and
	"after".  For now, don't strengthen param "trial", which requires
	adding checked casts when returning it.

From-SVN: r214260