Richard Earnshaw  <richard.earnshaw@arm.com>
Steven Bosscher  <stevenb@suse.de>

	PR rtl-optimization/23117
	* sched-rgn.c (add_branch_dependences): Handle COND_EXEC correctly
	when head == tail.  Tidy comment.

Co-Authored-By: Steven Bosscher <stevenb@suse.de>

From-SVN: r102551