[Patch, Fortran] PR 42072: [F03] wrong-code with C_F_PROCPOINTER

[Janus Weil]

>> As for doing the ISO_C_BINDING in gfc_conv_procedure_call, I do not have
>> any opinion, other than to note that the "normal" intrinsics are
>> different beasts altogether.
>
> Why are they so much different? Regarding the translation, we do
> pretty much the same for the ISO_C_BINDING intrinsics as we do for
> some of the others, namely replacing the call by some inline code.
> E.g. for C_F_PROCPOINTER, we just put in a simple pointer assignment.

Well, ok, I can see that they are handled a bit differently in some ways.

The least thing one could do would be to just separate out the
ISO_C_BINDING special handling code from gfc_conv_procedure_call, to
make it less of a monster.

The attachted patch does this by just putting the ISO_C_BINDING stuff
into a separate routine. And it does so without introducing any
regressions in the testsuite (i just checked). Should I commit this to
trunk?

Cheers,
Janus
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