7c158e3e55
Previously, some semantic checks that are checking if an entity is an allocatable were relying on the expression being a designator whose last symbol has the allocatable attribute. This is wrong since this was considering substrings and array sections of allocatables as being allocatable. This is wrong (see NOTE 2 in Fortran 2018 section 9.5.3.1). Add evaluate::IsAllocatableDesignator to correctly test this. Also add some semantic tests for ALLOCATED to test the newly added helper. Note that ifort and nag are rejecting coindexed-named-object in ALLOCATED (`allocated(coarray_scalar_alloc[2])`). I think it is wrong given allocated argument is intent(in) as per 16.2.1 point 3. So 15.5.2.6 point 4 regarding allocatable dummy is not violated (If the actual argument is a coindexed object, the dummy argument shall have the INTENT (IN) attribute.) and I think this is valid. gfortran accepts it. The need for this helper was exposed in https://reviews.llvm.org/D122779. Differential Revision: https://reviews.llvm.org/D122899 Co-authored-by: Peixin-Qiao <qiaopeixin@huawei.com>
67 lines
2.4 KiB
Fortran
67 lines
2.4 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! Tests for the ALLOCATED() intrinsic
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subroutine alloc(coarray_alloc, coarray_not_alloc, t2_not_alloc)
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interface
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function return_allocatable()
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integer, allocatable :: return_allocatable(:)
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end function
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end interface
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type :: t1
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integer, allocatable :: alloc(:)
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integer :: not_alloc
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end type
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type :: t2
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real, allocatable :: coarray_alloc[:]
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real, allocatable :: coarray_alloc_array(:)[:]
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end type
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integer :: not_alloc(100)
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real, allocatable :: x_alloc
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character(:), allocatable :: char_alloc(:)
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type(t1) :: dt_not_alloc(100)
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type(t1), allocatable :: dt_alloc(:)
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real, allocatable :: coarray_alloc[:, :]
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real, allocatable :: coarray_alloc_array(:)[:, :]
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real :: coarray_not_alloc(:)[*]
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type(t2) :: t2_not_alloc
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! OK
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print *, allocated(x_alloc)
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print *, allocated(char_alloc)
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print *, allocated(dt_alloc)
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print *, allocated(dt_not_alloc(3)%alloc)
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print *, allocated(dt_alloc(3)%alloc)
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print *, allocated(coarray_alloc)
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print *, allocated(coarray_alloc[2,3])
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print *, allocated(t2_not_alloc%coarray_alloc)
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print *, allocated(t2_not_alloc%coarray_alloc[2])
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(not_alloc)
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(dt_not_alloc)
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(dt_alloc%not_alloc)
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(char_alloc(:))
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(char_alloc(1)(1:10))
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(coarray_alloc_array(1:10))
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(coarray_alloc_array(1:10)[2,2])
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(t2_not_alloc%coarray_alloc_array(1))
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(t2_not_alloc%coarray_alloc_array(1)[2])
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!ERROR: Argument of ALLOCATED() must be an ALLOCATABLE object or component
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print *, allocated(return_allocatable())
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end subroutine
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