flang/test/Lower/CUDA/cuda-devptr.cuf

! RUN: bbc -emit-fir -hlfir -fcuda %s -o - | FileCheck %s

! Test CUDA Fortran specific type

module cudafct
  use __fortran_builtins, only : c_devptr => __builtin_c_devptr
  
  type :: t1
    type(c_devptr) :: devp
    integer :: a
  end type

contains
  function c_devloc(x)
    use iso_c_binding, only: c_loc
    type(c_devptr) :: c_devloc
    !dir$ ignore_tkr (tkr) x
    real, target, device :: x
    c_devloc%cptr = c_loc(x)
  end function

  attributes(device) function get_t1()
    type(t1) :: get_t1
  end
end

subroutine sub1()
  use iso_c_binding
  use __fortran_builtins, only : c_devptr => __builtin_c_devptr

  type(c_ptr) :: ptr
  type(c_devptr) :: dptr
  print*,ptr
  print*,dptr
end

! CHECK-LABEL: func.func @_QPsub1()
! CHECK-COUNT-2: %{{.*}} = fir.call @_FortranAioOutputDerivedType

subroutine sub2()
  use cudafct
  use iso_c_binding, only: c_f_pointer
  
  real(4), device :: a(8, 10)
  real(4), device, pointer :: x(:)
  call c_f_pointer(c_devloc(a), x, (/80/))
end

! CHECK-LABEL: func.func @_QPsub2()
! CHECK: %[[X:.*]] = fir.declare %{{.*}} {data_attr = #cuf.cuda<device>, fortran_attrs = #fir.var_attrs<pointer>, uniq_name = "_QFsub2Ex"} : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>) -> !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>
! CHECK: %[[CPTR_COORD:.*]] = fir.coordinate_of %{{.*}}, cptr : (!fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_devptr{{[<]?}}{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}{{[>]?}}>>) -> !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>
! CHECK: %[[ADDRESS_COORD:.*]] = fir.coordinate_of %[[CPTR_COORD]], __address : (!fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>) -> !fir.ref<i64>
! CHECK: %[[ADDRESS_LOADED:.*]] = fir.load %[[ADDRESS_COORD]] : !fir.ref<i64>
! CHECK: %[[ADDRESS_IDX:.*]] = fir.convert %[[ADDRESS_LOADED]] : (i64) -> !fir.ptr<!fir.array<?xf32>>
! CHECK: %[[EMBOX:.*]] = fir.embox %[[ADDRESS_IDX]](%{{.*}}) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>
! CHECK: fir.store %[[EMBOX]] to %[[X]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>

attributes(global) subroutine assign_c_devptr(p, a)
  use __fortran_builtins, only: c_devloc => __builtin_c_devloc
  use __fortran_builtins, only: c_devptr => __builtin_c_devptr
  type (c_devptr), device :: p
  complex :: a(10)
  p = c_devloc(a(1))
end subroutine

! CHECK-LABEL: func.func @_QPassign_c_devptr
! CHECK: %[[P:.*]] = fir.declare %arg0 dummy_scope %{{.*}} {data_attr = #cuf.cuda<device>, uniq_name = "_QFassign_c_devptrEp"}
! CHECK: %[[C_DEVLOC_RES:.*]] = fir.declare %15 {uniq_name = ".tmp.intrinsic_result"} : (!fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_devptr{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>>) -> !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_devptr{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>>
! CHECK: %[[RES_CPTR_COORD:.*]] = fir.coordinate_of %[[C_DEVLOC_RES]], cptr : (!fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_devptr{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>>) -> !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>
! CHECK: %[[P_CPTR_COORD:.*]] = fir.coordinate_of %[[P]], cptr : (!fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_devptr{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>>) -> !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>
! CHECK: %[[RES_ADDR_COORD:.*]] = fir.coordinate_of %[[RES_CPTR_COORD]], __address : (!fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>) -> !fir.ref<i64>
! CHECK: %[[P_ADDR_COORD:.*]] = fir.coordinate_of %[[P_CPTR_COORD]], __address : (!fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>) -> !fir.ref<i64>
! CHECK: %[[ADDR:.*]] = fir.load %[[RES_ADDR_COORD]] : !fir.ref<i64>
! CHECK: fir.store %[[ADDR]] to %[[P_ADDR_COORD]] : !fir.ref<i64>

attributes(global) subroutine assign_nested_c_devptr(p, a)
  use cudafct
  type(t1), device :: p
  p = get_t1()
end subroutine

! CHECK-LABEL: func.func @_QPassign_nested_c_devptr
! CHECK-NOT: fir.call @_FortranAAssign