flang/test/Semantics/CUDA/cuf04.cuf

! RUN: %python %S/../test_errors.py %s %flang_fc1
! CUDA Fortran section 2.5.6 restrictions
module m
 contains
  attributes(device) subroutine devsubr(n)
    integer, intent(in) :: n
    !WARNING: 'x1' should not have the SAVE attribute or initialization in a device subprogram [-Wcuda-usage]
    real, save :: x1
    !WARNING: 'x2' should not have the SAVE attribute or initialization in a device subprogram [-Wcuda-usage]
    real :: x2 = 1.
    !ERROR: Device subprogram 'devsubr' cannot call itself
    if (n > 0) call devsubr(n-1)
  end subroutine
  attributes(global) subroutine globsubr
  end subroutine
  subroutine boring
  end subroutine
  subroutine c_kernel() bind(c,name='c_kernel')
  end subroutine
  subroutine test
    !ERROR: 'globsubr' is a kernel subroutine and must be called with kernel launch parameters in chevrons
    call globsubr
    !ERROR: Kernel launch parameters in chevrons may not be used unless calling a kernel subroutine
    call boring<<<1,2>>>
    call c_kernel<<<1,1>>>() ! ok because bind(c) subroutine
  end subroutine
end module