derek.holloway
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54 lines
2.0 KiB
Fortran
54 lines
2.0 KiB
Fortran
! RUN: bbc -emit-hlfir %s -o - | FileCheck %s
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module poly
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type p1
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integer :: a
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integer :: b
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contains
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procedure, nopass :: proc1 => proc1_p1
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end type
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type, extends(p1) :: p2
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integer :: c
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contains
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procedure, nopass :: proc1 => proc1_p2
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end type
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contains
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subroutine proc1_p1()
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print*, 'call proc1_p1'
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end subroutine
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subroutine proc1_p2()
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print*, 'call proc1_p2'
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end subroutine
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subroutine test_nullify()
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class(p1), pointer :: c
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allocate(p2::c)
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call c%proc1()
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nullify(c) ! c dynamic type must be reset to p1
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call c%proc1()
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end subroutine
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end module
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program test
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use poly
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call test_nullify()
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end
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! CHECK-LABEL: func.func @_QMpolyPtest_nullify()
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! CHECK: %[[C_DESC:.*]] = fir.alloca !fir.class<!fir.ptr<!fir.type<_QMpolyTp1{a:i32,b:i32}>>> {bindc_name = "c", uniq_name = "_QMpolyFtest_nullifyEc"}
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! CHECK: %[[C_DESC_DECL:.*]]:2 = hlfir.declare %[[C_DESC]] {fortran_attrs = #fir.var_attrs<pointer>, uniq_name = "_QMpolyFtest_nullifyEc"} : (!fir.ref<!fir.class<!fir.ptr<!fir.type<_QMpolyTp1{a:i32,b:i32}>>>>) -> (!fir.ref<!fir.class<!fir.ptr<!fir.type<_QMpolyTp1{a:i32,b:i32}>>>>, !fir.ref<!fir.class<!fir.ptr<!fir.type<_QMpolyTp1{a:i32,b:i32}>>>>)
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! CHECK: %{{.*}} = fir.call @_FortranAPointerAllocate(%{{.*}}, %{{.*}}, %{{.*}}, %{{.*}}, %{{.*}}) {{.*}}: (!fir.ref<!fir.box<none>>, i1, !fir.box<none>, !fir.ref<i8>, i32, {{.*}}) -> i32
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! CHECK: %[[DECLARED_TYPE_DESC:.*]] = fir.type_desc !fir.type<_QMpolyTp1{a:i32,b:i32}>
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! CHECK: %[[C_DESC_CAST:.*]] = fir.convert %[[C_DESC_DECL]]#0 : (!fir.ref<!fir.class<!fir.ptr<!fir.type<_QMpolyTp1{a:i32,b:i32}>>>>) -> !fir.ref<!fir.box<none>>
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! CHECK: %[[TYPE_DESC_CAST:.*]] = fir.convert %[[DECLARED_TYPE_DESC]] : (!fir.tdesc<!fir.type<_QMpolyTp1{a:i32,b:i32}>>) -> !fir.ref<none>
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! CHECK: %[[RANK:.*]] = arith.constant 0 : i32
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! CHECK: %[[CORANK:.*]] = arith.constant 0 : i32
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! CHECK: fir.call @_FortranAPointerNullifyDerived(%[[C_DESC_CAST]], %[[TYPE_DESC_CAST]], %[[RANK]], %[[CORANK]]) {{.*}}: (!fir.ref<!fir.box<none>>, !fir.ref<none>, i32, i32) -> ()
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