[LLVMdev] [cfe-dev] [PROPOSAL] per-function optimization level control

[Rafael Espíndola]

On 29 May 2013 09:28,  <Andrea_DiBiagio at sn.scee.net> wrote:
> Hi,
>
> I just wanted to bump this discussion in case anyone had any more comments
> to make.
>
> We're in a bit of a bind here as we've now had requests for this feature
> from 10 separate customers, so we're going to be required to implement
> this feature somehow in our private branch at least (all of the other
> compilers they use already support some form of this feature so it is very
> heavily used in our field).  Obviously we don't want to significantly
> diverge from the mainline so it would be great to work with the community
> to implement this in such a way that it could be incorporated into the
> mainline and be beneficial to all of the other users too :-).

What is the common use case? Making sure some funtion is always
optimized or making sure it never optimized? If the second one, I
wonder if marking it cold would be a good enough approximation.

If we do need to enabled/disable passes run in each function, I would
suggest starting by proposing which attributes should be added to the
language reference.

Cheers,
Rafael