flang/test/Lower/HLFIR/elemental-user-procedure-ref.f90

! Test lowering of user defined elemental procedure reference to HLFIR
! RUN: bbc -emit-hlfir -o - %s 2>&1 | FileCheck %s

subroutine by_addr(x, y)
  integer :: x
  real :: y(100)
  interface
    real elemental function elem(a, b)
      integer, intent(in) :: a
      real, intent(in) :: b
    end function
  end interface
  call baz(elem(x, y))
end subroutine
! CHECK-LABEL: func.func @_QPby_addr(
! CHECK:  %[[VAL_2:.*]]:2 = hlfir.declare %[[VAL_0:.*]] {{.*}}x
! CHECK:  %[[VAL_5:.*]]:2 = hlfir.declare %[[VAL_1:.*]](%[[VAL_4:[^)]*]]) {{.*}}y
! CHECK:  %[[VAL_6:.*]] = hlfir.elemental %[[VAL_4]] unordered : (!fir.shape<1>) -> !hlfir.expr<100xf32> {
! CHECK:  ^bb0(%[[VAL_7:.*]]: index):
! CHECK:    %[[VAL_8:.*]] = hlfir.designate %[[VAL_5]]#0 (%[[VAL_7]])  : (!fir.ref<!fir.array<100xf32>>, index) -> !fir.ref<f32>
! CHECK:    %[[VAL_9:.*]] = fir.call @_QPelem(%[[VAL_2]]#0, %[[VAL_8]]) proc_attrs<elemental, pure>  fastmath<contract> : (!fir.ref<i32>, !fir.ref<f32>) -> f32
! CHECK:    hlfir.yield_element %[[VAL_9]] : f32
! CHECK:  }
! CHECK: fir.call
! CHECK: hlfir.destroy %[[VAL_6]]

subroutine by_value(x, y)
  integer :: x
  real :: y(10, 20)
  interface
    real elemental function elem_val(a, b)
      integer, value :: a
      real, value :: b
    end function
  end interface
  call baz(elem_val(x, y))
end subroutine
! CHECK-LABEL: func.func @_QPby_value(
! CHECK:  %[[VAL_2:.*]]:2 = hlfir.declare %[[VAL_0:.*]] {{.*}}x
! CHECK:  %[[VAL_6:.*]]:2 = hlfir.declare %[[VAL_1:.*]](%[[VAL_5:[^)]*]]) {{.*}}y
! CHECK:  %[[VAL_7:.*]] = fir.load %[[VAL_2]]#0 : !fir.ref<i32>
! CHECK:  %[[VAL_8:.*]] = hlfir.elemental %[[VAL_5]] unordered : (!fir.shape<2>) -> !hlfir.expr<10x20xf32> {
! CHECK:  ^bb0(%[[VAL_9:.*]]: index, %[[VAL_10:.*]]: index):
! CHECK:    %[[VAL_11:.*]] = hlfir.designate %[[VAL_6]]#0 (%[[VAL_9]], %[[VAL_10]])  : (!fir.ref<!fir.array<10x20xf32>>, index, index) -> !fir.ref<f32>
! CHECK:    %[[VAL_12:.*]] = fir.load %[[VAL_11]] : !fir.ref<f32>
! CHECK:    %[[VAL_13:.*]] = fir.call @_QPelem_val(%[[VAL_7]], %[[VAL_12]]) proc_attrs<elemental, pure>  fastmath<contract> : (i32, f32) -> f32
! CHECK:    hlfir.yield_element %[[VAL_13]] : f32
! CHECK:  }
! CHECK: fir.call
! CHECK: hlfir.destroy %[[VAL_8]]

subroutine by_boxaddr(x, y)
  character(*) :: x
  character(*) :: y(100)
  interface
    real elemental function char_elem(a, b)
      character(*), intent(in) :: a
      character(*), intent(in) :: b
    end function
  end interface
  call baz2(char_elem(x, y))
end subroutine
! CHECK-LABEL: func.func @_QPby_boxaddr(
! CHECK:  %[[VAL_3:.*]]:2 = hlfir.declare %[[VAL_2:.*]]#0 typeparams %[[VAL_2]]#1 {{.*}}x
! CHECK:  %[[VAL_6:.*]] = arith.constant 100 : index
! CHECK:  %[[VAL_8:.*]]:2 = hlfir.declare %[[VAL_5:.*]](%[[VAL_7:.*]]) typeparams %[[VAL_4:.*]]#1 {{.*}}y
! CHECK:  %[[VAL_9:.*]] = hlfir.elemental %[[VAL_7]] unordered : (!fir.shape<1>) -> !hlfir.expr<100xf32> {
! CHECK:  ^bb0(%[[VAL_10:.*]]: index):
! CHECK:    %[[VAL_11:.*]] = hlfir.designate %[[VAL_8]]#0 (%[[VAL_10]])  typeparams %[[VAL_4]]#1 : (!fir.box<!fir.array<100x!fir.char<1,?>>>, index, index) -> !fir.boxchar<1>
! CHECK:    %[[VAL_12:.*]] = fir.call @_QPchar_elem(%[[VAL_3]]#0, %[[VAL_11]]) proc_attrs<elemental, pure>  fastmath<contract> : (!fir.boxchar<1>, !fir.boxchar<1>) -> f32
! CHECK:    hlfir.yield_element %[[VAL_12]] : f32
! CHECK:  }
! CHECK: fir.call
! CHECK: hlfir.destroy %[[VAL_9]]

subroutine sub(x, y)
  integer :: x
  real :: y(10, 20)
  interface
    elemental subroutine elem_sub(a, b)
      integer, intent(in) :: a
      real, intent(in) :: b
    end subroutine
  end interface
  call elem_sub(x, y)
end subroutine
! CHECK-LABEL: func.func @_QPsub(
! CHECK:  %[[VAL_2:.*]]:2 = hlfir.declare %[[VAL_0:.*]] {{.*}}x
! CHECK:  %[[VAL_3:.*]] = arith.constant 10 : index
! CHECK:  %[[VAL_4:.*]] = arith.constant 20 : index
! CHECK:  %[[VAL_6:.*]]:2 = hlfir.declare %[[VAL_1:.*]](%[[VAL_5:[^)]*]]) {{.*}}y
! CHECK:  %[[VAL_7:.*]] = arith.constant 1 : index
! CHECK:  fir.do_loop %[[VAL_8:.*]] = %[[VAL_7]] to %[[VAL_4]] step %[[VAL_7]] unordered {
! CHECK:    fir.do_loop %[[VAL_9:.*]] = %[[VAL_7]] to %[[VAL_3]] step %[[VAL_7]] unordered {
! CHECK:      %[[VAL_10:.*]] = hlfir.designate %[[VAL_6]]#0 (%[[VAL_9]], %[[VAL_8]])  : (!fir.ref<!fir.array<10x20xf32>>, index, index) -> !fir.ref<f32>
! CHECK:      fir.call @_QPelem_sub(%[[VAL_2]]#0, %[[VAL_10]]) proc_attrs<elemental, pure>  fastmath<contract> : (!fir.ref<i32>, !fir.ref<f32>) -> ()
! CHECK:    }
! CHECK:  }

subroutine impure_elemental(x)
  real :: x(10, 20)
  interface
    impure elemental subroutine impure_elem(a)
      real, intent(in) :: a
    end subroutine
  end interface
  call impure_elem(x)
end subroutine
! CHECK-LABEL:   func.func @_QPimpure_elemental(
! CHECK-SAME:      %[[VAL_0:.*]]: !fir.ref<!fir.array<10x20xf32>> {fir.bindc_name = "x"}) {
! CHECK:           %[[VAL_1:.*]] = arith.constant 10 : index
! CHECK:           %[[VAL_2:.*]] = arith.constant 20 : index
! CHECK:           %[[VAL_3:.*]] = fir.shape %[[VAL_1]], %[[VAL_2]] : (index, index) -> !fir.shape<2>
! CHECK:           %[[VAL_4:.*]]:2 = hlfir.declare %[[VAL_0]](%[[VAL_3]]) dummy_scope %{{[0-9]+}} {uniq_name = "_QFimpure_elementalEx"} : (!fir.ref<!fir.array<10x20xf32>>, !fir.shape<2>, !fir.dscope) -> (!fir.ref<!fir.array<10x20xf32>>, !fir.ref<!fir.array<10x20xf32>>)
! CHECK:           %[[VAL_5:.*]] = arith.constant 1 : index
! CHECK:           fir.do_loop %[[VAL_6:.*]] = %[[VAL_5]] to %[[VAL_2]] step %[[VAL_5]] {
! CHECK:             fir.do_loop %[[VAL_7:.*]] = %[[VAL_5]] to %[[VAL_1]] step %[[VAL_5]] {
! CHECK:               %[[VAL_8:.*]] = hlfir.designate %[[VAL_4]]#0 (%[[VAL_7]], %[[VAL_6]])  : (!fir.ref<!fir.array<10x20xf32>>, index, index) -> !fir.ref<f32>
! CHECK:               fir.call @_QPimpure_elem(%[[VAL_8]]) proc_attrs<elemental> fastmath<contract> : (!fir.ref<f32>) -> ()
! CHECK:             }
! CHECK:           }
! CHECK:           return
! CHECK:         }

subroutine ordered_elemental(x)
  real :: x(10, 20)
  interface
    elemental subroutine ordered_elem(a)
      real, intent(inout) :: a
    end subroutine
  end interface
  call ordered_elem(x)
end subroutine
! CHECK-LABEL:   func.func @_QPordered_elemental(
! CHECK-SAME:      %[[VAL_0:.*]]: !fir.ref<!fir.array<10x20xf32>> {fir.bindc_name = "x"}) {
! CHECK:           %[[VAL_1:.*]] = arith.constant 10 : index
! CHECK:           %[[VAL_2:.*]] = arith.constant 20 : index
! CHECK:           %[[VAL_3:.*]] = fir.shape %[[VAL_1]], %[[VAL_2]] : (index, index) -> !fir.shape<2>
! CHECK:           %[[VAL_4:.*]]:2 = hlfir.declare %[[VAL_0]](%[[VAL_3]]) dummy_scope %{{[0-9]+}} {uniq_name = "_QFordered_elementalEx"} : (!fir.ref<!fir.array<10x20xf32>>, !fir.shape<2>, !fir.dscope) -> (!fir.ref<!fir.array<10x20xf32>>, !fir.ref<!fir.array<10x20xf32>>)
! CHECK:           %[[VAL_5:.*]] = arith.constant 1 : index
! CHECK:           fir.do_loop %[[VAL_6:.*]] = %[[VAL_5]] to %[[VAL_2]] step %[[VAL_5]] {
! CHECK:             fir.do_loop %[[VAL_7:.*]] = %[[VAL_5]] to %[[VAL_1]] step %[[VAL_5]] {
! CHECK:               %[[VAL_8:.*]] = hlfir.designate %[[VAL_4]]#0 (%[[VAL_7]], %[[VAL_6]])  : (!fir.ref<!fir.array<10x20xf32>>, index, index) -> !fir.ref<f32>
! CHECK:               fir.call @_QPordered_elem(%[[VAL_8]]) proc_attrs<elemental, pure> fastmath<contract> : (!fir.ref<f32>) -> ()
! CHECK:             }
! CHECK:           }
! CHECK:           return
! CHECK:         }

subroutine impure_elemental_arg_eval(x)
  real :: x(10, 20)
  interface
    impure elemental subroutine impure_elem(a)
      real, intent(in) :: a
    end subroutine
  end interface
  call impure_elem((x))
end subroutine
! CHECK-LABEL:   func.func @_QPimpure_elemental_arg_eval(
! CHECK-SAME:      %[[VAL_0:.*]]: !fir.ref<!fir.array<10x20xf32>> {fir.bindc_name = "x"}) {
! CHECK:           %[[VAL_1:.*]] = arith.constant 10 : index
! CHECK:           %[[VAL_2:.*]] = arith.constant 20 : index
! CHECK:           %[[VAL_3:.*]] = fir.shape %[[VAL_1]], %[[VAL_2]] : (index, index) -> !fir.shape<2>
! CHECK:           %[[VAL_4:.*]]:2 = hlfir.declare %[[VAL_0]](%[[VAL_3]]) dummy_scope %{{[0-9]+}} {uniq_name = "_QFimpure_elemental_arg_evalEx"} : (!fir.ref<!fir.array<10x20xf32>>, !fir.shape<2>, !fir.dscope) -> (!fir.ref<!fir.array<10x20xf32>>, !fir.ref<!fir.array<10x20xf32>>)
! CHECK:           %[[VAL_5:.*]] = hlfir.elemental %[[VAL_3]] unordered : (!fir.shape<2>) -> !hlfir.expr<10x20xf32> {
! CHECK:           ^bb0(%[[VAL_6:.*]]: index, %[[VAL_7:.*]]: index):
! CHECK:             %[[VAL_8:.*]] = hlfir.designate %[[VAL_4]]#0 (%[[VAL_6]], %[[VAL_7]])  : (!fir.ref<!fir.array<10x20xf32>>, index, index) -> !fir.ref<f32>
! CHECK:             %[[VAL_9:.*]] = fir.load %[[VAL_8]] : !fir.ref<f32>
! CHECK:             %[[VAL_10:.*]] = hlfir.no_reassoc %[[VAL_9]] : f32
! CHECK:             hlfir.yield_element %[[VAL_10]] : f32
! CHECK:           }
! CHECK:           %[[VAL_11:.*]]:3 = hlfir.associate %[[VAL_5]](%[[VAL_3]]) {uniq_name = "adapt.impure_arg_eval"} : (!hlfir.expr<10x20xf32>, !fir.shape<2>) -> (!fir.ref<!fir.array<10x20xf32>>, !fir.ref<!fir.array<10x20xf32>>, i1)
! CHECK:           %[[VAL_13:.*]] = arith.constant 1 : index
! CHECK:           fir.do_loop %[[VAL_14:.*]] = %[[VAL_13]] to %[[VAL_2]] step %[[VAL_13]] {
! CHECK:             fir.do_loop %[[VAL_15:.*]] = %[[VAL_13]] to %[[VAL_1]] step %[[VAL_13]] {
! CHECK:               %[[VAL_16:.*]] = hlfir.designate %[[VAL_11]]#0 (%[[VAL_15]], %[[VAL_14]])  : (!fir.ref<!fir.array<10x20xf32>>, index, index) -> !fir.ref<f32>
! CHECK:               fir.call @_QPimpure_elem(%[[VAL_16]]) proc_attrs<elemental> fastmath<contract> : (!fir.ref<f32>) -> ()
! CHECK:             }
! CHECK:           }
! CHECK:           hlfir.end_associate %[[VAL_11]]#1, %[[VAL_11]]#2 : !fir.ref<!fir.array<10x20xf32>>, i1
! CHECK:           hlfir.destroy %[[VAL_5]] : !hlfir.expr<10x20xf32>
! CHECK:           return
! CHECK:         }