[cfe-commits] r141053 - in /cfe/trunk: include/clang/Basic/DiagnosticDriverKinds.td lib/Driver/Tools.cpp

[Ted Kremenek]

On Oct 4, 2011, at 9:03 AM, Bob Wilson wrote:

> I'm not sure this is a good idea.  I understand the concern about having -W flags for all warnings, but we certainly don't anyone to start using -Wno-unsupported-debug-with-integrated-as.

Can you clarify your concern?  If people know what they are doing, they should be able to silence the warning (or promote them to an error).

>  As soon as the integrated assembler can support debug info, we're going to rip out this warning, and we don't want to be stuck keeping the -W flags around for backward compatibility.

I don't see that as an issue.  We never promise that warnings will stay around forever.  Once a warning is deemed not to be useful anymore we should feel free to remove it.

>  Is there some existing warning group that we could use for this?

No, and I don't think that would be the right approach anyway.  That seems counter to your concern about putting this warning under a flag in the first place.

If you really don't want driver warnings to be under a -W flag, then we should consider adding another diagnostic category to segregate them from other warnings.  Once we get all warnings under a -W flag, we'd like to change tablegen to reject warnings that are not in a diagnostic group.
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