The rename is backward, but generates an ICE.
$ ifort ifort_bug.f90
Intel(R) Visual Fortran Intel(R) 64 Compiler XE for applications running on Inte
l(R) 64, Version 14.0.1.139 Build 20131008
Copyright (C) 1985-2013 Intel Corporation. All rights reserved.
fortcom: Fatal: There has been an internal compiler error (C0000005).
compilation aborted for ifort_bug.f90 (code 1)
====================
module op_mod
implicit none
private
interface operator(.divisiblebytwo.)
module procedure d2
end interface
public :: operator(.divisiblebytwo.)
contains
function d2(n)
integer, intent(in) :: n
logical :: d2
d2 = modulo (n, 2) == 0
end function d2
end module op_mod
! This is backwards, but causes internal compiler error.
use op_mod, operator(.divisiblebytwo.) => operator(.even.)
implicit none
print *, .even. (-5), .even. (-4)
end