+2014-08-28 Richard Sandiford <rdsandiford@googlemail.com>
+
+ * combine.c: Include rtl-iter.h.
+ (unmentioned_reg_p_1): Delete.
+ (unmentioned_reg_p): Use FOR_EACH_SUBRTX rather than for_each_rtx.
+ Don't handle null rtxes.
+
2014-08-28 Richard Sandiford <rdsandiford@googlemail.com>
* calls.c: Include rtl-iter.h.