[haskell-llvm] llvm-general FFI dependencies

[Carter Schonwald]

doesn't the transforms stuff only make sense in the context of the ffi? I'm
admitedly a bit confused on this front.


On Mon, Aug 19, 2013 at 7:27 PM, Scott West <scott.west at inf.ethz.ch> wrote:

> Hello Ben,
>
> Sorry I didn't receive this message from you for some reason, luckily
> Carter replied to it to reply to me!
>
> I agree that it's basically out of place in either package: the -pure
> appears to be just AST, and in -ffi it would only be used for adding
> passes, so that's a bit weird as well.
>
> Dependency-wise I think putting it into -pure is better, as every package
> is likely to use -pure anyway (at least in a hypothetical package hierarchy
> ;)). Introducing it into -ffi for example would mean that clients who want
> the Transforms have to drag the -ffi along with it, which may be too much
> for their needs. So I would nudge it towards -pure.
>
> On the up-side I think the disadvantages are most aesthetic.
>
> Regards,
> Scott
>
>
>> On Mon, Aug 19, 2013 at 4:16 PM, Dr. Benjamin S. Scarlet
>> <roll10 at greynode.net <mailto:roll10 at greynode.net>> wrote:
>>
>>     Scott,
>>
>>     You asked on IRC about putting the Transforms into the -ffi package. I
>>     replied that yes, that option would be weird.
>>
>>     This option of putting them into the -pure package is also weird.
>>
>>     I'm torn between the two. Neither one is unacceptable; neither is
>>     particularly nice.
>>
>>     I'm pondering the two, and would welcome arguments in either
>> direction.
>>
>>     -Ben Scarlet
>>
>>     On Mon, 2013-08-19 at 09:33 +0200, Scott West wrote:
>>      > Hello all,
>>      >
>>      > I've been looking a bit in the past week at the llvm-general
>> bindings
>>      > trying to figure out how to tweeze the FFI part away from the rest.
>>      >
>>      > As Ben Scarlet indicated, the dependency of the FFI part is
>>     largely on
>>      > llvm-general-pure. However, there are two other small dependencies
>> on
>>      > the llvm-general:
>>      >
>>      > - LLVM.General.Internal.**InstructionDefs and
>>      > - LLVM.General.Transforms
>>      >
>>      > It seems that the dependency on Internal.InstructionDefs is
>>     mostly just
>>      > code-sharing, and there is probably a not too difficult solution
>>     there.
>>      >
>>      > For Transforms however, I'm less sure what to do.
>>      >
>>      > I think a better option is to move it into llvm-general-pure, as it
>>      > certainly pure, although it's not really part of the AST (which
>>      > llvm-general-pure mostly contains). This would make it that
>>      > llvm-general-pure is a dependency for all llvm packages in the
>>     future,
>>      > allowing us to share a single FFI implementation (the currently
>>     hidden
>>      > llvm-general one).
>>      >
>>      > Thoughts?
>>      >
>>      > Thanks!
>>      >
>>      > Regards,
>>      > Scott
>>      >
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