===================================================================
@@ -6515,15 +6515,15 @@ gfc_resolve_iterator (gfc_iterator *iter
/* Convert start, end, and step to the same type as var. */
if (iter->start->ts.kind != iter->var->ts.kind
|| iter->start->ts.type != iter->var->ts.type)
- gfc_convert_type (iter->start, &iter->var->ts, 2);
+ gfc_convert_type (iter->start, &iter->var->ts, 1);
if (iter->end->ts.kind != iter->var->ts.kind
|| iter->end->ts.type != iter->var->ts.type)
- gfc_convert_type (iter->end, &iter->var->ts, 2);
+ gfc_convert_type (iter->end, &iter->var->ts, 1);
if (iter->step->ts.kind != iter->var->ts.kind
|| iter->step->ts.type != iter->var->ts.type)
- gfc_convert_type (iter->step, &iter->var->ts, 2);
+ gfc_convert_type (iter->step, &iter->var->ts, 1);
if (iter->start->expr_type == EXPR_CONSTANT
&& iter->end->expr_type == EXPR_CONSTANT
===================================================================
@@ -0,0 +1,10 @@
+! { dg-do compile }
+subroutine test2(s)
+integer(1) :: i
+integer (8) :: s
+
+do i = 10, HUGE(i) - 10, 222 ! { dg-error "overflow converting" }
+ s = s + 1
+end do
+
+end subroutine test2