[PATCH] D138597: DebugInfo: Add/support new DW_LANG codes for recent C and C++ versions

[David Blaikie via Phabricator via cfe-commits]

dblaikie added a comment.

>>> @aprantl do you have an opinion on this?  I tend to lean to the pedantic side on this kind of thing, but I'm persuadable.
>>
>> Yeah, I've certainly got mixed feelings - maybe we don't pick up these after-release language codes, and instead produce the new language encoding (which separates language from version) as an extension, alongside the old/in-the-dwarfv5-spec-document codes? So that a DWARFv5 consumer that contains only the DWARFv5-spec-document functionality and not the new codes, and a newer consumer can read the new parts.
>
> Except the new LNAME codes aren't 1-1 with the old codes

I'm not sure that'd be a problem? They're in different attributes, etc, such that they wouldn't be read by an old consumer without explicit support for them.

> and aren't published anywhere.

They're published on the website too: https://dwarfstd.org/LanguagesV6.php


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  https://reviews.llvm.org/D138597/new/

https://reviews.llvm.org/D138597