flang/test/Lower/pointer.f90

   1 ! RUN: bbc -emit-fir %s -o - | FileCheck %s
   2
   3 ! TODO: Descriptor (fir.box) will most likely be used for pointers
   4 ! (at least for the character case below). This code is hitting a
   5 ! hard todo until pointers are handled correctly.
   6 ! XFAIL: true
   7
   8 ! CHECK-LABEL: func @_QPpointertests
   9 subroutine pointerTests
  10   ! CHECK: fir.global internal @_QFpointertestsEptr1 : !fir.ptr<i32>
  11   integer, pointer :: ptr1 => NULL()
  12   ! CHECK: %[[c0:.*]] = arith.constant 0 : index
  13   ! CHECK: [[reg1:%[0-9]+]] = fir.convert %[[c0:.*]] : (index) -> !fir.ref<none>
  14   ! CHECK: [[reg2:%[0-9]+]] = fir.convert [[reg1]] : (!fir.ref<none>) -> !fir.ptr<i32>
  15   ! CHECK: fir.has_value [[reg2]] : !fir.ptr<i32>
  16
  17   ! CHECK: fir.global internal @_QFpointertestsEptr2 : !fir.ptr<f32>
  18   real, pointer :: ptr2 => NULL()
  19   ! CHECK: %[[c0:.*]] = arith.constant 0 : index
  20   ! CHECK: [[reg1:%[0-9]+]] = fir.convert %[[c0:.*]] : (index) -> !fir.ref<none>
  21   ! CHECK: [[reg2:%[0-9]+]] = fir.convert [[reg1]] : (!fir.ref<none>) -> !fir.ptr<f32>
  22   ! CHECK: fir.has_value [[reg2]] : !fir.ptr<f32>
  23
  24   ! CHECK: fir.global internal @_QFpointertestsEptr3 : !fir.ptr<!fir.complex<4>>
  25   complex, pointer :: ptr3 => NULL()
  26   ! CHECK: %[[c0:.*]] = arith.constant 0 : index
  27   ! CHECK: [[reg1:%[0-9]+]] = fir.convert %[[c0:.*]] : (index) -> !fir.ref<none>
  28   ! CHECK: [[reg2:%[0-9]+]] = fir.convert [[reg1]] : (!fir.ref<none>) -> !fir.ptr<!fir.complex<4>>
  29   ! CHECK: fir.has_value [[reg2]] : !fir.ptr<!fir.complex<4>>
  30
  31   ! CHECK: fir.global internal @_QFpointertestsEptr4 : !fir.ptr<!fir.char<1,?>>
  32   character(:), pointer :: ptr4 => NULL()
  33   ! CHECK: %[[c0:.*]] = arith.constant 0 : index
  34   ! CHECK: [[reg1:%[0-9]+]] = fir.convert %[[c0:.*]] : (index) -> !fir.ref<none>
  35   ! CHECK: [[reg2:%[0-9]+]] = fir.convert [[reg1]] : (!fir.ref<none>) -> !fir.ptr<!fir.char<1,?>>
  36   ! CHECK: fir.has_value [[reg2]] : !fir.ptr<!fir.char<1,?>>
  37
  38   ! CHECK: fir.global internal @_QFpointertestsEptr5 : !fir.ptr<!fir.logical<4>>
  39   logical, pointer :: ptr5 => NULL()
  40   ! CHECK: %[[c0:.*]] = arith.constant 0 : index
  41   ! CHECK: [[reg1:%[0-9]+]] = fir.convert %[[c0:.*]] : (index) -> !fir.ref<none>
  42   ! CHECK: [[reg2:%[0-9]+]] = fir.convert [[reg1]] : (!fir.ref<none>) -> !fir.ptr<!fir.logical<4>>
  43   ! CHECK: fir.has_value [[reg2]] : !fir.ptr<!fir.logical<4>>
  44
  45 end subroutine pointerTests