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! { dg-do run }
!
! PR fortran/45019
!
! Check that the compiler knows that
! "arg" and "arr" can alias.
!
MODULE m
IMPLICIT NONE
INTEGER, TARGET :: arr(3)
CONTAINS
SUBROUTINE foobar (arg)
INTEGER, TARGET :: arg(:)
arr(2:3) = arg(1:2)
END SUBROUTINE foobar
END MODULE m
PROGRAM main
USE m
IMPLICIT NONE
arr = (/ 1, 2, 3 /)
CALL bar(arr)
if (any (arr /= (/ 1, 1, 2 /))) call abort()
CALL test()
contains
subroutine bar(x)
INTEGER, TARGET :: x(:)
CALL foobar (x)
end subroutine bar
END PROGRAM main
MODULE m2
IMPLICIT NONE
INTEGER, TARGET :: arr(3)
CONTAINS
SUBROUTINE foobar (arg)
INTEGER, TARGET :: arg(:)
arr(1) = 5
arg(1) = 6
if (arr(1) == 5) call abort()
END SUBROUTINE foobar
END MODULE m2
subroutine test
USE m2
IMPLICIT NONE
arr = (/ 1, 2, 3 /)
CALL bar(arr)
contains
subroutine bar(x)
INTEGER, TARGET :: x(:)
CALL foobar (x)
end subroutine bar
END subroutine test
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