llvm/flang/test/Semantics/doconcurrent04.f90

! C1122 The index-name shall be a named scalar variable of type integer.
! RUN: not %flang_fc1 -fdebug-unparse-with-symbols %s 2>&1 | FileCheck %s
! CHECK: Must have INTEGER type, but is REAL(4)

subroutine do_concurrent_test1(n)
  implicit none
  integer :: n
  real :: j
  do 20 concurrent (j = 1:n)
20 enddo
end subroutine do_concurrent_test1