forked from OSchip/llvm-project
107 lines
2.5 KiB
Fortran
107 lines
2.5 KiB
Fortran
! RUN: %S/test_errors.sh %s %t %flang_fc1
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subroutine forall1
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real :: a(9)
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!ERROR: 'i' is already declared in this scoping unit
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!ERROR: Cannot redefine FORALL variable 'i'
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forall (i=1:8, i=1:9) a(i) = i
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!ERROR: 'i' is already declared in this scoping unit
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!ERROR: Cannot redefine FORALL variable 'i'
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forall (i=1:8, i=1:9)
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a(i) = i
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end forall
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forall (j=1:8)
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!ERROR: 'j' is already declared in this scoping unit
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!ERROR: Cannot redefine FORALL variable 'j'
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forall (j=1:9)
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end forall
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end forall
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end
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subroutine forall2
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integer, pointer :: a(:)
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integer, target :: b(10,10)
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forall (i=1:10)
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!ERROR: Impure procedure 'f_impure' may not be referenced in a FORALL
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a(f_impure(i):) => b(i,:)
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end forall
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!ERROR: FORALL mask expression may not reference impure procedure 'f_impure'
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forall (j=1:10, f_impure(1)>2)
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end forall
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contains
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impure integer function f_impure(i)
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f_impure = i
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end
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end
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subroutine forall3
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real :: x
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forall(i=1:10)
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!ERROR: Cannot redefine FORALL variable 'i'
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i = 1
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end forall
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forall(i=1:10)
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forall(j=1:10)
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!ERROR: Cannot redefine FORALL variable 'i'
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i = 1
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end forall
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end forall
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!ERROR: Cannot redefine FORALL variable 'i'
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forall(i=1:10) i = 1
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end
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subroutine forall4
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integer, parameter :: zero = 0
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integer :: a(10)
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!ERROR: FORALL limit expression may not reference index variable 'i'
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forall(i=1:i)
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a(i) = i
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end forall
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!ERROR: FORALL step expression may not reference index variable 'i'
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forall(i=1:10:i)
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a(i) = i
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end forall
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!ERROR: FORALL step expression may not be zero
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forall(i=1:10:zero)
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a(i) = i
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end forall
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!ERROR: FORALL limit expression may not reference index variable 'i'
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forall(i=1:i) a(i) = i
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!ERROR: FORALL step expression may not reference index variable 'i'
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forall(i=1:10:i) a(i) = i
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!ERROR: FORALL step expression may not be zero
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forall(i=1:10:zero) a(i) = i
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end
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! Note: this gets warnings but not errors
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subroutine forall5
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real, target :: x(10), y(10)
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forall(i=1:10)
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x(i) = y(i)
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end forall
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forall(i=1:10)
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x = y ! warning: i not used on LHS
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forall(j=1:10)
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x(i) = y(i) ! warning: j not used on LHS
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x(j) = y(j) ! warning: i not used on LHS
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endforall
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endforall
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do concurrent(i=1:10)
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x = y
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forall(i=1:10) x = y
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end do
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end
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subroutine forall6
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type t
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real, pointer :: p
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end type
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type(t) :: a(10)
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real, target :: b(10)
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forall(i=1:10)
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a(i)%p => b(i)
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a(1)%p => b(i) ! warning: i not used on LHS
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end forall
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end
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