486be17dda
Rework the code used to check for calls to impure procedures in DO CONCURRENT constructs. The current code wasn't checking the representation of the procedure references in the strongly typed expressions, so it was missing calls to impure subprograms made via generic interfaces. While here, improve error messages, and fix some minor issues exposed by testing the improved checks. Differential Revision: https://reviews.llvm.org/D155489
48 lines
1.2 KiB
Fortran
48 lines
1.2 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! Ensure that DO CONCURRENT purity checks apply to specific procedures
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! in the case of calls to generic interfaces.
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module m
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interface purity
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module procedure :: ps, ips
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end interface
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type t
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contains
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procedure :: pb, ipb
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generic :: purity => pb, ipb
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end type
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contains
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pure subroutine ps(n)
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integer, intent(in) :: n
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end subroutine
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impure subroutine ips(a)
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real, intent(in) :: a
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end subroutine
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pure subroutine pb(x,n)
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class(t), intent(in) :: x
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integer, intent(in) :: n
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end subroutine
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impure subroutine ipb(x,n)
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class(t), intent(in) :: x
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real, intent(in) :: n
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end subroutine
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end module
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program test
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use m
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type(t) :: x
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do concurrent (j=1:1)
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call ps(1) ! ok
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call purity(1) ! ok
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!ERROR: Impure procedure 'ips' may not be referenced in DO CONCURRENT
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call purity(1.)
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!ERROR: Impure procedure 'ips' may not be referenced in DO CONCURRENT
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call ips(1.)
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call x%pb(1) ! ok
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call x%purity(1) ! ok
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!ERROR: Impure procedure 'ipb' may not be referenced in DO CONCURRENT
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call x%purity(1.)
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!ERROR: Impure procedure 'ipb' may not be referenced in DO CONCURRENT
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call x%ipb(1.)
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end do
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end program
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