llvm dev - Jun 2018 - Question about the status of the IR extensions for OpenMP

[Apologies if you received this email twice, the first time I sent it
from the wrong email account]

Hi all,

some time ago Intel proposed a set of minimal IR extensions to improve
the support of OpenMP in LLVM [1][2].

I wonder if there has been any progress on this and if it is going to
be upstreamed.

Also the previous proposal[2] and communications to the llvm-dev[3]
mention the following spec:

  LLVM Intrinsic Function and Metadata String Interface for Directive
(or Pragmas) Representation.
  Specification Draft v0.9, Intel Corporation, 2016.

but I have not been able to find it anywhere (at least via a web
search). Is it available somewhere?

Thanks a lot,
Roger

[1] https://dl.acm.org/citation.cfm?id=3148191
[2] https://dl.acm.org/citation.cfm?id=3018872
[3] http://lists.llvm.org/pipermail/llvm-dev/2017-January/108906.html

Hi Roger,

There are at least two concurrent efforts that work on an IR extension
similar to what you cite below, one by Intel and one by a researcher
working group. Afaik, both will approach the community in the next few
weeks. (And to make sure they'll see your mail I put them all in the
CC).

In the meantime you could take a look at this proposal [0]. It is not
an IR extension but an abstraction layer that allows to design and
test parallel specific analysis and optimizations on both current and
future parallel representations.

Cheers,
  Johannes

[0] https://lists.llvm.org/pipermail/llvm-dev/2018-June/123841.html


P.S.
  I realized you saw the proposal already but I didn't want to remove
  the paragraph about it once I was done.


On 06/11, Roger Ferrer Ibáñez via llvm-dev wrote:
> [Apologies if you received this email twice, the first time I sent it
> from the wrong email account]
> 
> Hi all,
> 
> some time ago Intel proposed a set of minimal IR extensions to improve
> the support of OpenMP in LLVM [1][2].
> 
> I wonder if there has been any progress on this and if it is going to
> be upstreamed.
> 
> Also the previous proposal[2] and communications to the llvm-dev[3]
> mention the following spec:
> 
>   LLVM Intrinsic Function and Metadata String Interface for Directive
> (or Pragmas) Representation.
>   Specification Draft v0.9, Intel Corporation, 2016.
> 
> but I have not been able to find it anywhere (at least via a web
> search). Is it available somewhere?
> 
> Thanks a lot,
> Roger
> 
> [1] https://dl.acm.org/citation.cfm?id=3148191
> [2] https://dl.acm.org/citation.cfm?id=3018872
> [3] http://lists.llvm.org/pipermail/llvm-dev/2017-January/108906.html
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
-- 

Johannes Doerfert
PhD Student / Researcher

Compiler Design Lab (Professor Hack) / Argonne National Laboratory
Saarland Informatics Campus, Germany / Lemont, IL 60439, USA
Building E1.3, Room 4.31

Tel. +49 (0)681 302-57521 : doerfert at cs.uni-saarland.de / jdoerfert at
anl.gov
Fax. +49 (0)681 302-3065  : http://www.cdl.uni-saarland.de/people/doerfert
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: Digital signature
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20180612/09255b15/attachment.sig>

Hi,

thanks a lot Johannes.

I have some (hopefully simple) questions about your proposal. I'll
make them in the original thread, instead.

Kind regards,
Roger

2018-06-12 11:17 GMT+02:00 Johannes Doerfert <jdoerfert at
anl.gov>:
> Hi Roger,
>
> There are at least two concurrent efforts that work on an IR extension
> similar to what you cite below, one by Intel and one by a researcher
> working group. Afaik, both will approach the community in the next few
> weeks. (And to make sure they'll see your mail I put them all in the
> CC).
>
> In the meantime you could take a look at this proposal [0]. It is not
> an IR extension but an abstraction layer that allows to design and
> test parallel specific analysis and optimizations on both current and
> future parallel representations.
>
> Cheers,
>   Johannes
>
> [0] https://lists.llvm.org/pipermail/llvm-dev/2018-June/123841.html
>
>
> P.S.
>   I realized you saw the proposal already but I didn't want to remove
>   the paragraph about it once I was done.
>
>
> On 06/11, Roger Ferrer Ibáñez via llvm-dev wrote:
>> [Apologies if you received this email twice, the first time I sent it
>> from the wrong email account]
>>
>> Hi all,
>>
>> some time ago Intel proposed a set of minimal IR extensions to improve
>> the support of OpenMP in LLVM [1][2].
>>
>> I wonder if there has been any progress on this and if it is going to
>> be upstreamed.
>>
>> Also the previous proposal[2] and communications to the llvm-dev[3]
>> mention the following spec:
>>
>>   LLVM Intrinsic Function and Metadata String Interface for Directive
>> (or Pragmas) Representation.
>>   Specification Draft v0.9, Intel Corporation, 2016.
>>
>> but I have not been able to find it anywhere (at least via a web
>> search). Is it available somewhere?
>>
>> Thanks a lot,
>> Roger
>>
>> [1] https://dl.acm.org/citation.cfm?id=3148191
>> [2] https://dl.acm.org/citation.cfm?id=3018872
>> [3] http://lists.llvm.org/pipermail/llvm-dev/2017-January/108906.html
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
> --
>
> Johannes Doerfert
> PhD Student / Researcher
>
> Compiler Design Lab (Professor Hack) / Argonne National Laboratory
> Saarland Informatics Campus, Germany / Lemont, IL 60439, USA
> Building E1.3, Room 4.31
>
> Tel. +49 (0)681 302-57521 : doerfert at cs.uni-saarland.de / jdoerfert at
anl.gov
> Fax. +49 (0)681 302-3065  : http://www.cdl.uni-saarland.de/people/doerfert


-- 
Roger Ferrer Ibáñez