[llvm-dev] RFC: throw2goto exception optimization

[David Blaikie via llvm-dev]

On Thu, May 21, 2020 at 3:02 PM Jeff Linahan <jeff.linahan at gmail.com> wrote:

> Yes I'm looking for either community approval or reasons I might be
> barking up the wrong tree :) Maybe someone else explored this idea and
> there's some big roadblock.  I would like to contribute myself, and there
> may be others like Emil who want to help.  I just wanted to let you all
> know what I want to optimize since I've never contributed to clang before
> (sorry I don't have better ideas on implementation strategy yet being
> unfamiliar with the codebase.)
>

Fair enough - Richard Smith might be able to chime in with some more
perspective here. Guessing it'll come down to probably doing a fair amount
of work out of tree to demonstrate/figure out the structure/impact/etc &
maybe some sense of benefit to see if it's worth adding whatever the
complexity is to the compiler.


>
> On Thu, May 21, 2020, 11:50 AM David Blaikie <dblaikie at gmail.com> wrote:
>
>> (re: official proposal numbers: there are none)
>>
>> What sort of feedback are you looking for on this? It doesn't seem to be
>> a proposal (at least in the way that they usually appear/are discussed in
>> the LLVM community) - it sounds like "it'd be nice if compilers did <x>"
>> without any suggestion of how that might be achieved, or who would do the
>> work to make that possible. Are you asking the LLVM community for approval
>> for this direction so you can start contributing patches to implement it?
>> Even that's going to probably require some amount of suggestion about,
>> broadly, how this would be implemented - to get a better understanding of
>> the cost/benefit - how invasive such a change would be, etc.
>>
>> - Dave
>>
>> On Wed, May 20, 2020 at 8:09 PM Jeff Linahan via llvm-dev <
>> llvm-dev at lists.llvm.org> wrote:
>>
>>> Hello again LLVM devs,
>>>
>>> Here's the request for comments on the throw2goto exception optimization
>>> project.  (This is my first one, I don't know who gives out the official
>>> numbers for proposals :))
>>>
>>> Jeff
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> llvm-dev at lists.llvm.org
>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-d
>>> <https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev>
>>>
>>
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