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! RUN: %python %S/test_errors.py %s %flang_fc1
! C1140 -- A statement that might result in the deallocation of a polymorphic
! entity shall not appear within a DO CONCURRENT construct.
module m1
! Base type with scalar components
type :: Base
integer :: baseField1
end type
! Child type so we can allocate polymorphic entities
type, extends(Base) :: ChildType
integer :: childField
end type
! Type with a polymorphic, allocatable component
type, extends(Base) :: HasAllocPolyType
class(Base), allocatable :: allocPolyField
end type
! Type with a allocatable, coarray component
type :: HasAllocCoarrayType
type(Base), allocatable, codimension[:] :: allocCoarrayField
end type
! Type with a polymorphic, allocatable, coarray component
type :: HasAllocPolyCoarrayType
class(Base), allocatable, codimension[:] :: allocPolyCoarrayField
end type
! Type with a polymorphic, pointer component
type, extends(Base) :: HasPointerPolyType
class(Base), pointer :: pointerPolyField
end type
class(Base), allocatable :: baseVar1
type(Base) :: baseVar2
end module m1
subroutine s1()
! Test deallocation of polymorphic entities caused by block exit
use m1
block
! The following should not cause problems
integer :: outerInt
! The following are OK since they're not in a DO CONCURRENT
class(Base), allocatable :: outerAllocatablePolyVar
class(Base), allocatable, codimension[:] :: outerAllocatablePolyCoarray
type(HasAllocPolyType), allocatable :: outerAllocatableWithAllocPoly
type(HasAllocPolyCoarrayType), allocatable :: outerAllocWithAllocPolyCoarray
do concurrent (i = 1:10)
! The following should not cause problems
block
integer, allocatable :: blockInt
end block
block
! Test polymorphic entities
! OK because it's a pointer to a polymorphic entity
class(Base), pointer :: pointerPoly
! OK because it's not polymorphic
integer, allocatable :: intAllocatable
! OK because it's not polymorphic
type(Base), allocatable :: allocatableNonPolyBlockVar
! Bad because it's polymorphic and allocatable
class(Base), allocatable :: allocatablePoly
! OK because it has the SAVE attribute
class(Base), allocatable, save :: allocatablePolySave
! Bad because it's polymorphic and allocatable
class(Base), allocatable, codimension[:] :: allocatablePolyCoarray
! OK because it's not polymorphic and allocatable
type(Base), allocatable, codimension[:] :: allocatableCoarray
! Bad because it has a allocatable polymorphic component
type(HasAllocPolyType), allocatable :: allocatableWithAllocPoly
! OK because the declared variable is not allocatable
type(HasAllocPolyType) :: nonAllocatableWithAllocPoly
! OK because the declared variable is not allocatable
type(HasAllocPolyCoarrayType) :: nonAllocatableWithAllocPolyCoarray
! Bad because even though the declared the allocatable component is a coarray
type(HasAllocPolyCoarrayType), allocatable :: allocWithAllocPolyCoarray
! OK since it has no polymorphic component
type(HasAllocCoarrayType) :: nonAllocWithAllocCoarray
! OK since it has no component that's polymorphic, oops
type(HasPointerPolyType), allocatable :: allocatableWithPointerPoly
!ERROR: Deallocation of a polymorphic entity caused by block exit not allowed in DO CONCURRENT
!ERROR: Deallocation of a polymorphic entity caused by block exit not allowed in DO CONCURRENT
!ERROR: Deallocation of a polymorphic entity caused by block exit not allowed in DO CONCURRENT
!ERROR: Deallocation of a polymorphic entity caused by block exit not allowed in DO CONCURRENT
end block
end do
end block
end subroutine s1
subroutine s2()
! Test deallocation of a polymorphic entity cause by intrinsic assignment
use m1
class(Base), allocatable :: localVar
class(Base), allocatable :: localVar1
type(Base), allocatable :: localVar2
type(HasAllocPolyType), allocatable :: polyComponentVar
type(HasAllocPolyType), allocatable :: polyComponentVar1
type(HasAllocPolyType) :: nonAllocPolyComponentVar
type(HasAllocPolyType) :: nonAllocPolyComponentVar1
class(HasAllocPolyCoarrayType), allocatable :: allocPolyCoarray
class(HasAllocPolyCoarrayType), allocatable :: allocPolyCoarray1
class(Base), allocatable, codimension[:] :: allocPolyComponentVar
class(Base), allocatable, codimension[:] :: allocPolyComponentVar1
allocate(ChildType :: localVar)
allocate(ChildType :: localVar1)
allocate(Base :: localVar2)
allocate(polyComponentVar)
allocate(polyComponentVar1)
allocate(allocPolyCoarray)
allocate(allocPolyCoarray1)
! These are OK because they're not in a DO CONCURRENT
localVar = localVar1
nonAllocPolyComponentVar = nonAllocPolyComponentVar1
polyComponentVar = polyComponentVar1
allocPolyCoarray = allocPolyCoarray1
do concurrent (i = 1:10)
! Test polymorphic entities
! Bad because localVar is allocatable and polymorphic, 10.2.1.3, par. 3
!ERROR: Deallocation of a polymorphic entity caused by assignment not allowed in DO CONCURRENT
localVar = localVar1
! The next one should be OK since localVar2 is not polymorphic
localVar2 = localVar1
! Bad because the copying of the components causes deallocation
!ERROR: Deallocation of a polymorphic entity caused by assignment not allowed in DO CONCURRENT
nonAllocPolyComponentVar = nonAllocPolyComponentVar1
! Bad because possible deallocation a variable with a polymorphic component
!ERROR: Deallocation of a polymorphic entity caused by assignment not allowed in DO CONCURRENT
polyComponentVar = polyComponentVar1
! Bad because deallocation upon assignment happens with allocatable
! entities, even if they're coarrays. The noncoarray restriction only
! applies to components
!ERROR: Deallocation of a polymorphic entity caused by assignment not allowed in DO CONCURRENT
allocPolyCoarray = allocPolyCoarray1
end do
end subroutine s2
subroutine s3()
! Test direct deallocation
use m1
class(Base), allocatable :: polyVar
type(Base), allocatable :: nonPolyVar
type(HasAllocPolyType), allocatable :: polyComponentVar
type(HasAllocPolyType), pointer :: pointerPolyComponentVar
allocate(ChildType:: polyVar)
allocate(nonPolyVar)
allocate(polyComponentVar)
allocate(pointerPolyComponentVar)
! These are all good because they're not in a do concurrent
deallocate(polyVar)
allocate(polyVar)
deallocate(polyComponentVar)
allocate(polyComponentVar)
deallocate(pointerPolyComponentVar)
allocate(pointerPolyComponentVar)
do concurrent (i = 1:10)
! Bad because deallocation of a polymorphic entity
!ERROR: Deallocation of a polymorphic entity caused by a DEALLOCATE statement not allowed in DO CONCURRENT
deallocate(polyVar)
! Bad, deallocation of an entity with a polymorphic component
!ERROR: Deallocation of a polymorphic entity caused by a DEALLOCATE statement not allowed in DO CONCURRENT
deallocate(polyComponentVar)
! Bad, deallocation of a pointer to an entity with a polymorphic component
!ERROR: Deallocation of a polymorphic entity caused by a DEALLOCATE statement not allowed in DO CONCURRENT
deallocate(pointerPolyComponentVar)
! Deallocation of a nonpolymorphic entity
deallocate(nonPolyVar)
end do
end subroutine s3
module m2
type :: impureFinal
contains
final :: impureSub
end type
type :: pureFinal
contains
final :: pureSub
end type
contains
impure subroutine impureSub(x)
type(impureFinal), intent(in) :: x
end subroutine
pure subroutine pureSub(x)
type(pureFinal), intent(in) :: x
end subroutine
subroutine s4()
type(impureFinal), allocatable :: ifVar, ifvar1
type(pureFinal), allocatable :: pfVar
allocate(ifVar)
allocate(ifVar1)
allocate(pfVar)
! OK for an ordinary DO loop
do i = 1,10
if (i .eq. 1) deallocate(ifVar)
end do
! OK to invoke a PURE FINAL procedure in a DO CONCURRENT
! This case does not work currently because the compiler's test for
! HasImpureFinal() in .../lib/Semantics/tools.cc doesn't work correctly
! do concurrent (i = 1:10)
! if (i .eq. 1) deallocate(pfVar)
! end do
! Error to invoke an IMPURE FINAL procedure in a DO CONCURRENT
do concurrent (i = 1:10)
!ERROR: Deallocation of an entity with an IMPURE FINAL procedure 'impuresub' caused by a DEALLOCATE statement not allowed in DO CONCURRENT
if (i .eq. 1) deallocate(ifVar)
end do
do concurrent (i = 1:10)
if (i .eq. 1) then
block
type(impureFinal), allocatable :: ifVar
allocate(ifVar)
! Error here because exiting this scope causes the finalization of
! ifvar which causes the invocation of an IMPURE FINAL procedure
!ERROR: Deallocation of an entity with an IMPURE FINAL procedure 'impuresub' caused by block exit not allowed in DO CONCURRENT
end block
end if
end do
do concurrent (i = 1:10)
if (i .eq. 1) then
! Error here because the assignment statement causes the finalization
! of ifvar which causes the invocation of an IMPURE FINAL procedure
!ERROR: Deallocation of an entity with an IMPURE FINAL procedure 'impuresub' caused by assignment not allowed in DO CONCURRENT
ifvar = ifvar1
end if
end do
end subroutine s4
end module m2
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