diff --git a/flang/test/Lower/forall/forall-2.f90 b/flang/test/Lower/forall/forall-2.f90
new file mode 100644
index 0000000000000..bb8f639f11fe0
--- /dev/null
+++ b/flang/test/Lower/forall/forall-2.f90
@@ -0,0 +1,180 @@
+! RUN: bbc -emit-fir %s -o - | FileCheck %s
+
+! CHECK-LABEL: func @_QPimplied_iters_allocatable(
+! CHECK-SAME: %[[VAL_0:.*]]: !fir.box<!fir.array<?x!fir.type<_QFimplied_iters_allocatableTt{oui:!fir.logical<4>,arr:!fir.box<!fir.heap<!fir.array<?xf32>>>}>>>{{.*}}, %[[VAL_1:.*]]: !fir.box<!fir.array<?xf32>>{{.*}}) {
+subroutine implied_iters_allocatable(thing, a1)
+  ! No dependence between lhs and rhs.
+  ! Lhs may need to be reallocated to conform.
+  real :: a1(:)
+  type t
+     logical :: oui
+     real, allocatable :: arr(:)
+  end type t
+  type(t) :: thing(:)
+  integer :: i
+  
+  forall (i=5:13)
+  ! commenting out this test for the moment
+  !  thing(i)%arr = a1
+  end forall
+  ! CHECK: return
+  ! CHECK: }
+end subroutine implied_iters_allocatable
+
+! CHECK-LABEL: func @_QPconflicting_allocatable(
+! CHECK-SAME: %[[VAL_0:.*]]: !fir.box<!fir.array<?x!fir.type<_QFconflicting_allocatableTt{oui:!fir.logical<4>,arr:!fir.box<!fir.heap<!fir.array<?xf32>>>}>>>{{.*}}, %[[VAL_1:.*]]: !fir.ref<i32>{{.*}}, %[[VAL_2:.*]]: !fir.ref<i32>{{.*}}) {
+subroutine conflicting_allocatable(thing, lo, hi)
+  ! Introduce a crossing dependence to incite a (deep) copy.
+  integer :: lo,hi
+  type t
+     logical :: oui
+     real, allocatable :: arr(:)
+  end type t
+  type(t) :: thing(:)
+  integer :: i
+  
+  forall (i = lo:hi)
+  ! commenting out this test for the moment
+  !  thing(i)%arr = thing(hi-i)%arr
+  end forall
+  ! CHECK: return
+  ! CHECK: }
+end subroutine conflicting_allocatable
+
+! CHECK-LABEL: func @_QPforall_pointer_assign(
+! CHECK-SAME: %[[VAL_0:.*]]: !fir.box<!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>>{{.*}}, %[[VAL_1:.*]]: !fir.box<!fir.array<?x!fir.type<_QFforall_pointer_assignTu{targ:!fir.array<20xf32>}>>> {fir.bindc_name = "at", fir.target}, %[[VAL_2:.*]]: !fir.ref<i32>{{.*}}, %[[VAL_3:.*]]: !fir.ref<i32>{{.*}}) {
+subroutine forall_pointer_assign(ap, at, ii, ij)
+  ! Set pointer members in an array of derived type to targets.
+  ! No conflicts (multiple-assignment being forbidden, of course).
+  type t
+     real, pointer :: ptr(:)
+  end type t
+  type u
+     real :: targ(20)
+  end type u
+  type(t) :: ap(:)
+  type(u), target :: at(:)
+  integer :: ii, ij
+
+  forall (i = ii:ij:8)
+  ! commenting out this test for the moment
+  !   ap(i)%ptr => at(i-4)%targ
+  end forall
+  ! CHECK: return
+  ! CHECK: }  
+end subroutine forall_pointer_assign
+
+! CHECK-LABEL: func @_QPslice_with_explicit_iters() {
+! CHECK:         %[[VAL_0:.*]] = fir.alloca i32 {adapt.valuebyref, bindc_name = "i"}
+! CHECK:         %[[VAL_1:.*]] = arith.constant 10 : index
+! CHECK:         %[[VAL_2:.*]] = arith.constant 10 : index
+! CHECK:         %[[VAL_3:.*]] = fir.alloca !fir.array<10x10xi32> {bindc_name = "a", uniq_name = "_QFslice_with_explicit_itersEa"}
+! CHECK:         %[[VAL_4:.*]] = arith.constant 1 : i32
+! CHECK:         %[[VAL_5:.*]] = fir.convert %[[VAL_4]] : (i32) -> index
+! CHECK:         %[[VAL_6:.*]] = arith.constant 5 : i32
+! CHECK:         %[[VAL_7:.*]] = fir.convert %[[VAL_6]] : (i32) -> index
+! CHECK:         %[[VAL_8:.*]] = arith.constant 1 : index
+! CHECK:         %[[VAL_9:.*]] = fir.shape %[[VAL_1]], %[[VAL_2]] : (index, index) -> !fir.shape<2>
+! CHECK:         %[[VAL_10:.*]] = fir.array_load %[[VAL_3]](%[[VAL_9]]) : (!fir.ref<!fir.array<10x10xi32>>, !fir.shape<2>) -> !fir.array<10x10xi32>
+! CHECK:         %[[VAL_11:.*]] = fir.do_loop %[[VAL_12:.*]] = %[[VAL_5]] to %[[VAL_7]] step %[[VAL_8]] unordered iter_args(%[[VAL_13:.*]] = %[[VAL_10]]) -> (!fir.array<10x10xi32>) {
+! CHECK:           %[[VAL_14:.*]] = fir.convert %[[VAL_12]] : (index) -> i32
+! CHECK:           fir.store %[[VAL_14]] to %[[VAL_0]] : !fir.ref<i32>
+! CHECK:           %[[VAL_15:.*]] = arith.constant 1 : index
+! CHECK:           %[[VAL_16:.*]] = arith.constant 1 : i64
+! CHECK:           %[[VAL_17:.*]] = fir.convert %[[VAL_16]] : (i64) -> index
+! CHECK:           %[[VAL_18:.*]] = arith.constant 1 : i64
+! CHECK:           %[[VAL_19:.*]] = fir.convert %[[VAL_18]] : (i64) -> index
+! CHECK:           %[[VAL_20:.*]] = fir.load %[[VAL_0]] : !fir.ref<i32>
+! CHECK:           %[[VAL_21:.*]] = fir.convert %[[VAL_20]] : (i32) -> i64
+! CHECK:           %[[VAL_22:.*]] = fir.convert %[[VAL_21]] : (i64) -> index
+! CHECK:           %[[VAL_23:.*]] = arith.constant 0 : index
+! CHECK:           %[[VAL_24:.*]] = arith.subi %[[VAL_22]], %[[VAL_17]] : index
+! CHECK:           %[[VAL_25:.*]] = arith.addi %[[VAL_24]], %[[VAL_19]] : index
+! CHECK:           %[[VAL_26:.*]] = arith.divsi %[[VAL_25]], %[[VAL_19]] : index
+! CHECK:           %[[VAL_27:.*]] = arith.cmpi sgt, %[[VAL_26]], %[[VAL_23]] : index
+! CHECK:           %[[VAL_28:.*]] = arith.select %[[VAL_27]], %[[VAL_26]], %[[VAL_23]] : index
+! CHECK:           %[[VAL_29:.*]] = fir.load %[[VAL_0]] : !fir.ref<i32>
+! CHECK:           %[[VAL_30:.*]] = fir.convert %[[VAL_29]] : (i32) -> i64
+! CHECK:           %[[VAL_31:.*]] = fir.convert %[[VAL_30]] : (i64) -> index
+! CHECK:           %[[VAL_32:.*]] = arith.subi %[[VAL_31]], %[[VAL_15]] : index
+! CHECK:           %[[VAL_33:.*]] = arith.constant 1 : index
+! CHECK:           %[[VAL_34:.*]] = arith.constant 0 : index
+! CHECK:           %[[VAL_35:.*]] = arith.subi %[[VAL_28]], %[[VAL_33]] : index
+! CHECK:           %[[VAL_36:.*]] = fir.do_loop %[[VAL_37:.*]] = %[[VAL_34]] to %[[VAL_35]] step %[[VAL_33]] unordered iter_args(%[[VAL_38:.*]] = %[[VAL_13]]) -> (!fir.array<10x10xi32>) {
+! CHECK:             %[[VAL_39:.*]] = fir.load %[[VAL_0]] : !fir.ref<i32>
+! CHECK:             %[[VAL_40:.*]] = arith.constant 0 : i32
+! CHECK:             %[[VAL_41:.*]] = arith.subi %[[VAL_40]], %[[VAL_39]] : i32
+! CHECK:             %[[VAL_42:.*]] = arith.subi %[[VAL_17]], %[[VAL_15]] : index
+! CHECK:             %[[VAL_43:.*]] = arith.muli %[[VAL_37]], %[[VAL_19]] : index
+! CHECK:             %[[VAL_44:.*]] = arith.addi %[[VAL_42]], %[[VAL_43]] : index
+! CHECK:             %[[VAL_45:.*]] = fir.array_update %[[VAL_38]], %[[VAL_41]], %[[VAL_44]], %[[VAL_32]] : (!fir.array<10x10xi32>, i32, index, index) -> !fir.array<10x10xi32>
+! CHECK:             fir.result %[[VAL_45]] : !fir.array<10x10xi32>
+! CHECK:           }
+! CHECK:           fir.result %[[VAL_46:.*]] : !fir.array<10x10xi32>
+! CHECK:         }
+! CHECK:         fir.array_merge_store %[[VAL_10]], %[[VAL_47:.*]] to %[[VAL_3]] : !fir.array<10x10xi32>, !fir.array<10x10xi32>, !fir.ref<!fir.array<10x10xi32>>
+! CHECK:         return
+! CHECK:       }
+
+subroutine slice_with_explicit_iters
+
+  integer :: a(10,10)
+  forall (i=1:5)
+     a(1:i, i) = -i
+  end forall
+end subroutine slice_with_explicit_iters
+
+! CHECK-LABEL: func @_QPembox_argument_with_slice(
+! CHECK-SAME:                                     %[[VAL_0:.*]]: !fir.ref<!fir.array<1xi32>>{{.*}}, %[[VAL_1:.*]]: !fir.ref<!fir.array<2x2xi32>>{{.*}}) {
+! CHECK:         %[[VAL_2:.*]] = fir.alloca i32 {adapt.valuebyref, bindc_name = "i"}
+! CHECK:         %[[VAL_3:.*]] = arith.constant 1 : index
+! CHECK:         %[[VAL_4:.*]] = arith.constant 2 : index
+! CHECK:         %[[VAL_5:.*]] = arith.constant 2 : index
+! CHECK:         %[[VAL_6:.*]] = arith.constant 1 : i32
+! CHECK:         %[[VAL_7:.*]] = fir.convert %[[VAL_6]] : (i32) -> index
+! CHECK:         %[[VAL_8:.*]] = arith.constant 1 : i32
+! CHECK:         %[[VAL_9:.*]] = fir.convert %[[VAL_8]] : (i32) -> index
+! CHECK:         %[[VAL_10:.*]] = arith.constant 1 : index
+! CHECK:         %[[VAL_11:.*]] = fir.shape %[[VAL_3]] : (index) -> !fir.shape<1>
+! CHECK:         %[[VAL_12:.*]] = fir.array_load %[[VAL_0]](%[[VAL_11]]) : (!fir.ref<!fir.array<1xi32>>, !fir.shape<1>) -> !fir.array<1xi32>
+! CHECK:         %[[VAL_13:.*]] = fir.do_loop %[[VAL_14:.*]] = %[[VAL_7]] to %[[VAL_9]] step %[[VAL_10]] unordered iter_args(%[[VAL_15:.*]] = %[[VAL_12]]) -> (!fir.array<1xi32>) {
+! CHECK:           %[[VAL_16:.*]] = fir.convert %[[VAL_14]] : (index) -> i32
+! CHECK:           fir.store %[[VAL_16]] to %[[VAL_2]] : !fir.ref<i32>
+! CHECK:           %[[VAL_17:.*]] = arith.constant 1 : i32
+! CHECK:           %[[VAL_18:.*]] = arith.constant 1 : index
+! CHECK:           %[[VAL_19:.*]] = arith.constant 1 : i64
+! CHECK:           %[[VAL_20:.*]] = fir.convert %[[VAL_19]] : (i64) -> index
+! CHECK:           %[[VAL_21:.*]] = arith.addi %[[VAL_18]], %[[VAL_4]] : index
+! CHECK:           %[[VAL_22:.*]] = arith.subi %[[VAL_21]], %[[VAL_18]] : index
+! CHECK:           %[[VAL_23:.*]] = fir.load %[[VAL_2]] : !fir.ref<i32>
+! CHECK:           %[[VAL_24:.*]] = fir.convert %[[VAL_23]] : (i32) -> i64
+! CHECK:           %[[VAL_25:.*]] = fir.undefined index
+! CHECK:           %[[VAL_26:.*]] = fir.shape %[[VAL_4]], %[[VAL_5]] : (index, index) -> !fir.shape<2>
+! CHECK:           %[[VAL_27:.*]] = fir.slice %[[VAL_18]], %[[VAL_22]], %[[VAL_20]], %[[VAL_24]], %[[VAL_25]], %[[VAL_25]] : (index, index, index, i64, index, index) -> !fir.slice<2>
+! CHECK:           %[[VAL_28:.*]] = fir.embox %[[VAL_1]](%[[VAL_26]]) {{\[}}%[[VAL_27]]] : (!fir.ref<!fir.array<2x2xi32>>, !fir.shape<2>, !fir.slice<2>) -> !fir.box<!fir.array<?xi32>>
+! CHECK:           %[[VAL_29:.*]] = fir.call @_QPe(%[[VAL_28]]) : (!fir.box<!fir.array<?xi32>>) -> i32
+! CHECK:           %[[VAL_30:.*]] = arith.addi %[[VAL_29]], %[[VAL_17]] : i32
+! CHECK:           %[[VAL_31:.*]] = arith.constant 1 : index
+! CHECK:           %[[VAL_32:.*]] = fir.load %[[VAL_2]] : !fir.ref<i32>
+! CHECK:           %[[VAL_33:.*]] = fir.convert %[[VAL_32]] : (i32) -> i64
+! CHECK:           %[[VAL_34:.*]] = fir.convert %[[VAL_33]] : (i64) -> index
+! CHECK:           %[[VAL_35:.*]] = arith.subi %[[VAL_34]], %[[VAL_31]] : index
+! CHECK:           %[[VAL_36:.*]] = fir.array_update %[[VAL_15]], %[[VAL_30]], %[[VAL_35]] : (!fir.array<1xi32>, i32, index) -> !fir.array<1xi32>
+! CHECK:           fir.result %[[VAL_36]] : !fir.array<1xi32>
+! CHECK:         }
+! CHECK:         fir.array_merge_store %[[VAL_12]], %[[VAL_37:.*]] to %[[VAL_0]] : !fir.array<1xi32>, !fir.array<1xi32>, !fir.ref<!fir.array<1xi32>>
+! CHECK:         return
+! CHECK:       }
+
+subroutine embox_argument_with_slice(a,b)
+  interface
+     pure integer function e(a)
+       integer, intent(in) :: a(:)
+     end function e
+  end interface
+  integer a(1), b(2,2)
+
+  forall (i=1:1)
+     a(i) = e(b(:,i)) + 1
+  end forall
+end subroutine embox_argument_with_slice