[cfe-dev] Cilk Plus extensions in LLVM/Clang

[Hal Finkel]

----- Original Message -----
> From: "Ben Langmuir" <ben.langmuir at intel.com>
> To: "Hal Finkel <hfinkel at anl.gov> (hfinkel at anl.gov)" <hfinkel at anl.gov>
> Cc: "Wei Pan" <wei.pan at intel.com>, "Andy Zhang" <andy.zhang at intel.com>, "Stefanus Du Toit"
> <stefanus.du.toit at intel.com>, "Douglas Gregor" <dgregor at apple.com>, "Clang Developer's Mailing List"
> <cfe-dev at cs.uiuc.edu>
> Sent: Thursday, February 28, 2013 2:52:24 PM
> Subject: RE: Cilk Plus extensions in LLVM/Clang
> 
> Hi Hal,
> 
> A porting guide is a great idea, and I would love to see Cilk Plus
> used on more platforms.  I think we can start by describing at a
> high-level what the architecture-specific parts of the compiler and
> runtime are.  This could live on a wiki page so anyone interested in
> porting Cilk Plus can contribute. Does that seem like a reasonable
> first step?

Yes, sounds great!

 -Hal

> 
> Ben
> 
> -----Original Message-----
> From: Hal Finkel [mailto:hfinkel at anl.gov]
> Sent: Wednesday, February 27, 2013 11:14 PM
> To: Langmuir, Ben
> Cc: Pan, Wei; Zhang, Andy; Du Toit, Stefanus; Douglas Gregor; Clang
> Developer's Mailing List
> Subject: Re: Cilk Plus extensions in LLVM/Clang
> 
> Ben,
> 
> This is great news! Thanks for making sure this ended up in the open.
> 
> Now what I'd like is some kind of (perhaps informal) "porting guide"
> for the compiler and the runtime. I'll want to get this working on
> other architectures, operating systems, etc.
> 
>  -Hal
> 
> ----- Original Message -----
> > From: "Ben Langmuir" <ben.langmuir at intel.com>
> > To: "Clang Developer's Mailing List" <cfe-dev at cs.uiuc.edu>
> > Cc: "Wei Pan" <wei.pan at intel.com>, "Andy Zhang"
> > <andy.zhang at intel.com>, "Stefanus Du Toit"
> > <stefanus.du.toit at intel.com>, "Hal Finkel" <hfinkel at anl.gov>,
> > "Douglas
> > Gregor" <dgregor at apple.com>
> > Sent: Wednesday, February 27, 2013 11:06:35 AM
> > Subject: Cilk Plus extensions in LLVM/Clang
> > 
> > 
> > 
> > 
> > Hi all,
> > 
> > 
> > 
> > The Cilk Plus developers at Intel are pleased to announce that our
> > in-progress implementation of the Cilk Plus C/C++ language
> > extensions
> > in Clang/LLVM is now available on Github:
> > 
> > 
> > 
> > http://cilkplus.github.com/
> > 
> > 
> > 
> > You may recall that Cilk Plus in Clang was previously discussed
> > here:
> > http://lists.cs.uiuc.edu/pipermail/cfe-dev/2012-November/thread.html#2
> > 5495 , including the reasons for hosting it out of tree. We are
> > committed to continuing development in the open, and we would
> > appreciate any feedback from the community on the design or
> > implementation!
> > 
> > 
> > 
> > Repository Info
> > 
> > ===============
> > 
> > 
> > 
> > The code is available in the "cilkplus" branch of each of the
> > following git repositories:
> > 
> > 
> > 
> > http://github.com/cilkplus/clang - This repo contains the C/C++
> > core
> > language extensions (i.e. the tasking keywords).
> > 
> > http://github.com/cilkplus/compiler-rt - This repo contains a copy
> > of
> > the Cilk Plus runtime library distributed under a BSD 3-clause
> > license.
> > 
> > http://github.com/cilkplus/llvm - Mostly used to keep our Clang
> > branch
> > synced to a reasonable LLVM revision; it also contains a small
> > Cilk-specific optimization pass.
> > 
> > 
> > 
> > Our changes are kept in sync with llvm.org's master branch, and are
> > typically within two weeks of trunk.
> > 
> > 
> > 
> > Status
> > 
> > ======
> > 
> > 
> > 
> > This code currently supports the _Cilk_spawn and _Cilk_sync tasking
> > keywords, as well as hyperobjects and the runtime library. The
> > status
> > is summarized at http://cilkplus.github.com/#status .
> > 
> > 
> > 
> > The implementation of _Cilk_spawn uses our original implementation
> > of
> > captured statements. We recently proposed this feature to cfe-dev
> > for
> > inclusion in trunk, and an improved version of captured statements
> > is
> > currently in review. We hope to continue upstreaming improvements
> > that
> > are valuable to the broader Clang community into trunk as they come
> > up.
> > 
> > 
> > 
> > Regards,
> > 
> > 
> > 
> > Ben Langmuir
> > 
> > 
> > 
> > Software Developer
> > 
> > Intel
> > 
> > 
>