Unreferenced statement warning

[Lester_N_]

Is there some way of triggering the Intel compiler to produce a warning that certain statement lines cannot be executed.  Something like this:

<do something>
9000   GOTO 1000
9020   PRINT *,'This statement will never be executed'

The Lahey compiler produces a message like this:

Line 990, file test.for
9020   PRINT *,'This statement will never be executed'
      |
WARNING -- Statement label (9020) not referenced, statements not executed.

[Steve_Lionel]

The Intel compiler does not have this - at least not in an easy-to-get-at form. (The Digital/Compaq compiler did.)

[Lester_N_]

Thanks. :-(

[jimdempseyatthecove]

It would be handy if dead code elimination was included in the reports.

Jim Dempsey

[jimdempseyatthecove]

And if there were an option to not remove dead code.... should one want to keep the code around for debugging (e.g. via Set Next Statement).

Jim Dempsey

[Steve_Lionel]

The optimization reports do have dead code elimination messages, but it's not a simple compiler diagnostic. The compiler doesn't remove dead code if you're not optimizing.

[LRaim]

The Intel compiler should notify these cases as other compilers do and it is difficult to understand why it does not provide warnings.
Along these lines, some time ago, I pointed out that IVF compiler does not provide any warning about subroutine variables used without any previously assigned value, while the Lahey compiler does. This can save quite a lot time to developers.