[PING^2] [C/C++] PR c/4076 -Wunused doesn't warn about static function only called by itself

["Manuel López-Ibáñez" <lopezibanez at gmail dot com>]

This is the last ping of tonight, I don't want to annoy people.

http://gcc.gnu.org/ml/gcc-patches/2007-03/msg00171.html

Cheers,

Manuel.

On 03/03/07, Manuel López-Ibáñez <lopezibanez@gmail.com> wrote:
> :ADDPATCH C / C++:
>
> -Wunused currently does not warn about static functions that are
> called only by themselves. This patch prevents marking a function as
> used if the call is done within the same function.
>
> Bootstrapped and regression tested with --enable-languages=all.
> This patch has found a few unused in GCC codebase.
>
> OK for mainline?
>
>
> 2007-03-03  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
>
>   PR c/4076
>   * c-typeck.c (build_external_ref): Don't mark as used if called from itself.
>   * calls.c (rtx_for_function_call): Likewise.
>
> cp/
>   * call.c (build_call_a): Don't mark as used if called from itself.
>   * semantics.c (finish_id_expression): Likewise.
>
> testsuite/
>   * gcc.dg/Wunused-function.c: New.
>   * g++.dg/warn/Wunused-function.C: New.

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