xref: /llvm-project/flang/test/Lower/pointer-args-callee.f90 (revision 4d95f74b13c6149a8ee2dfa0412d992c613c0c89)
1! Test calls with POINTER dummy arguments on the callee side.
2! RUN: bbc -emit-fir %s -o - | FileCheck %s
3
4! CHECK-LABEL: func @_QPchar_assumed(
5! CHECK-SAME: %[[arg0:.*]]: !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>{{.*}}
6subroutine char_assumed(a)
7  integer :: n
8  character(len=*), pointer :: a
9  ! CHECK: %[[argLoad:.*]] = fir.load %[[arg0]] : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>
10  ! CHECK: %[[argLen:.*]] = fir.box_elesize %[[argLoad]] : (!fir.box<!fir.ptr<!fir.char<1,?>>>) -> index
11
12  n = len(a)
13  ! CHECK: %[[argLenCast:.*]] = fir.convert %[[argLen]] : (index) -> i32
14  ! CHECK: fir.store %[[argLenCast]] to %{{.*}} : !fir.ref<i32>
15end subroutine
16
17! CHECK-LABEL: func @_QPchar_assumed_optional(
18! CHECK-SAME: %[[arg0:.*]]: !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>{{.*}}
19subroutine char_assumed_optional(a)
20  integer :: n
21  character(len=*), pointer, optional :: a
22  ! CHECK: %[[argPresent:.*]] = fir.is_present %[[arg0]] : (!fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>) -> i1
23  ! CHECK: %[[argLen:.*]] = fir.if %[[argPresent]] -> (index) {
24  ! CHECK:   %[[argLoad:.*]] = fir.load %[[arg0]] : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>
25  ! CHECK:   %[[argLoadLen:.*]] = fir.box_elesize %[[argLoad]] : (!fir.box<!fir.ptr<!fir.char<1,?>>>) -> index
26  ! CHECK:   fir.result %[[argLoadLen]] : index
27  ! CHECK: } else {
28  ! CHECK:   %[[undef:.*]] = fir.undefined index
29  ! CHECK:   fir.result %[[undef]] : index
30  ! CHECK: }
31
32  if (present(a)) then
33    n = len(a)
34    ! CHECK:   %[[argLenCast:.*]] = fir.convert %[[argLen]] : (index) -> i32
35    ! CHECK:   fir.store %[[argLenCast]] to %{{.*}} : !fir.ref<i32>
36  endif
37end subroutine
38