4a63264daa
Do not look for the global early in nullify codegen. The type descriptor can be emitted later and it would raise an error as it could not be found. Use `fir.type_desc` instead so it delays the type descriptor lookup until evrything is emitted. https://github.com/llvm/llvm-project/issues/63775 Reviewed By: vzakhari Differential Revision: https://reviews.llvm.org/D154982
53 lines
1.7 KiB
Fortran
53 lines
1.7 KiB
Fortran
! RUN: bbc -polymorphic-type -emit-fir %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: %{{.*}} = 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]] : (!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) -> none
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