1 files changed, 106 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/move_alloc_8.f90 b/gcc/testsuite/gfortran.dg/move_alloc_8.f90
new file mode 100644
index 00000000000..2fa53066600
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/move_alloc_8.f90
@@ -0,0 +1,106 @@
+! { dg-do compile }
+!
+! PR fortran/50684
+!
+! Module "bug" contributed by Martin Steghöfer.
+!
+
+MODULE BUG
+  TYPE MY_TYPE
+    INTEGER, ALLOCATABLE :: VALUE
+  END TYPE
+CONTAINS
+  SUBROUTINE POINTER_INTENT_IN_BUG_WORKING(POINTER_INTENT_IN_VARIABLE)
+    TYPE(MY_TYPE), POINTER, INTENT(IN) :: POINTER_INTENT_IN_VARIABLE
+    TYPE(MY_TYPE), POINTER :: POINTER_VARIABLE_LOCAL
+    INTEGER, ALLOCATABLE :: LOCAL_VALUE
+    
+    POINTER_VARIABLE_LOCAL=>POINTER_INTENT_IN_VARIABLE
+    CALL MOVE_ALLOC(POINTER_VARIABLE_LOCAL%VALUE, LOCAL_VALUE)
+    
+    RETURN
+  END SUBROUTINE POINTER_INTENT_IN_BUG_WORKING
+  
+  SUBROUTINE POINTER_INTENT_IN_BUG_FAILING(POINTER_INTENT_IN_VARIABLE)
+    TYPE(MY_TYPE), POINTER, INTENT(IN) :: POINTER_INTENT_IN_VARIABLE
+    INTEGER, ALLOCATABLE :: LOCAL_VALUE
+    
+    CALL MOVE_ALLOC(POINTER_INTENT_IN_VARIABLE%VALUE, LOCAL_VALUE)
+    
+    RETURN
+  END SUBROUTINE POINTER_INTENT_IN_BUG_FAILING
+end module bug
+
+subroutine test1()
+  TYPE MY_TYPE
+    INTEGER, ALLOCATABLE :: VALUE
+  END TYPE
+CONTAINS
+  SUBROUTINE sub (dt)
+    type(MY_TYPE), intent(in) :: dt
+    INTEGER, ALLOCATABLE :: lv
+    call move_alloc(dt%VALUE, lv) ! { dg-error "cannot be INTENT.IN." }
+  END SUBROUTINE
+end subroutine test1
+
+subroutine test2 (x, px)
+  implicit none
+  type t
+    integer, allocatable :: a
+  end type t
+
+  type t2
+    type(t), pointer :: ptr
+    integer, allocatable :: a
+  end type t2
+
+  type(t2), intent(in) :: x
+  type(t2), pointer, intent(in) :: px
+
+  integer, allocatable :: a
+  type(t2), pointer :: ta
+
+  call move_alloc (px, ta)      ! { dg-error "cannot be INTENT.IN." }
+  call move_alloc (x%a, a)      ! { dg-error "cannot be INTENT.IN." }
+  call move_alloc (x%ptr%a, a)  ! OK (3)
+  call move_alloc (px%a, a)     ! OK (4)
+  call move_alloc (px%ptr%a, a) ! OK (5)
+end subroutine test2
+
+subroutine test3 (x, px)
+  implicit none
+  type t
+    integer, allocatable :: a
+  end type t
+
+  type t2
+    class(t), pointer :: ptr
+    integer, allocatable :: a
+  end type t2
+
+  type(t2), intent(in) :: x
+  class(t2), pointer, intent(in) :: px
+
+  integer, allocatable :: a
+  class(t2), pointer :: ta
+
+  call move_alloc (px, ta)      ! { dg-error "cannot be INTENT.IN." }
+  call move_alloc (x%a, a)      ! { dg-error "cannot be INTENT.IN." }
+  call move_alloc (x%ptr%a, a)  ! OK (6)
+  call move_alloc (px%a, a)     ! OK (7)
+  call move_alloc (px%ptr%a, a) ! OK (8)
+end subroutine test3
+
+subroutine test4()
+  TYPE MY_TYPE
+    INTEGER, ALLOCATABLE :: VALUE
+  END TYPE
+CONTAINS
+  SUBROUTINE sub (dt)
+    CLASS(MY_TYPE), intent(in) :: dt
+    INTEGER, ALLOCATABLE :: lv
+    call move_alloc(dt%VALUE, lv) ! { dg-error "cannot be INTENT.IN." }
+  END SUBROUTINE
+end subroutine test4
+
+! { dg-final { cleanup-modules "bug" } }