unroll.c (copy_loop_body): Update LABEL_NUSES for the exit label as necessary.

        * unroll.c (copy_loop_body): Update LABEL_NUSES for the
        exit label as necessary.

From-SVN: r47227

gcc/ChangeLog

+2001-11-20  Jeff Law <law@redhat.com>
+
+	* unroll.c (copy_loop_body): Update LABEL_NUSES for the
+	exit label as necessary.
+
 2001-11-20  Brad Kaiser  <bkaiser@acelink.net>
  
 	* reload1.c (elimination_effects): Use function_invariant_p

gcc/unroll.c

@@ -2075,6 +2075,7 @@ copy_loop_body (loop, copy_start, copy_end, map, exit_label, last_iteration,
 		     that.  */
 		  jmp = emit_jump_insn_after (gen_jump (exit_label), copy);
 		  JUMP_LABEL (jmp) = exit_label;
+		  LABEL_NUSES (exit_label)++;
 		  jmp = emit_barrier_after (jmp);
 		  emit_label_after (lab, jmp);
 		  LABEL_NUSES (lab) = 0;