[llvm-dev] Adapting and open-sourcing PGI's Fortran frontend for LLVM

douglas miles (PGI) via llvm-dev llvm-dev at lists.llvm.org
Thu May 26 11:57:30 PDT 2016

Hi Chad - We have a functional Fortran compiler, with the PGI front-end bridged directly to LLVM, all of our Fortran runtime libraries integrated, and the Clang driver adapted for use with the Fortran compiler.  We're working with a few users at DOE who are trying to compile big applications with a binary version of the compiler.  Work is ongoing to migrate the source code into an LLVM-style repository, build infrastructure, documentation and web pages.  All of the compiler and runtime source is now built with Clang or the Fortran front-end with LLVM.  Much work remains on source code refactoring and documentation;  we expect that work to accelerate once all the infrastructure work is done.


-----Original Message-----
From: Hal Finkel [mailto:hfinkel at anl.gov] 
Sent: Thursday, May 26, 2016 9:17 AM
To: mcrosier at codeaurora.org
Cc: flang-dev; douglas miles (PGI); Rob Neely; Chris Lattner; llvm-dev at lists.llvm.org
Subject: Re: [llvm-dev] Adapting and open-sourcing PGI's Fortran frontend for LLVM

Hi Chad,

I can tell you that progress is being made on PGI's side; I'll let Doug/Rob provide more detailed updates.


----- Original Message -----
> From: "Chad Rosier" <mcrosier at codeaurora.org>
> To: "Hal Finkel" <hfinkel at anl.gov>
> Cc: "flang-dev" <flang-dev at googlegroups.com>, "douglas miles (PGI)" <douglas.miles at pgroup.com>, "Rob Neely"
> <neely4 at llnl.gov>, "Chris Lattner" <clattner at apple.com>, 
> llvm-dev at lists.llvm.org
> Sent: Thursday, May 26, 2016 10:47:19 AM
> Subject: RE: [llvm-dev] Adapting and open-sourcing PGI's Fortran frontend	for	LLVM
> Hi Hal,
> I haven't been following this closely, but has there been any updates 
> recently.
>  Regards,
>   Chad
> -----Original Message-----
> From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of 
> Chris Lattner via llvm-dev
> Sent: Sunday, November 15, 2015 12:46 AM
> To: Hal Finkel <hfinkel at anl.gov>
> Cc: LLVM Dev <llvm-dev at lists.llvm.org>; flang-dev 
> <flang-dev at googlegroups.com>; douglas miles (PGI) 
> <douglas.miles at pgroup.com>; Rob Neely <neely4 at llnl.gov>
> Subject: Re: [llvm-dev] Adapting and open-sourcing PGI's Fortran 
> frontend for LLVM
> > On Nov 13, 2015, at 2:22 PM, Hal Finkel via llvm-dev 
> > <llvm-dev at lists.llvm.org> wrote:
> > 
> > Hi everyone,
> > 
> > I have some very good news for everyone interested a 
> > production-quality Fortran frontend for LLVM:
> > 
> > The U.S. Department of Energy’s National Nuclear Security 
> > Administration and its three national labs have reached an agreement 
> > with NVIDIA's PGI division to adapt and open-source PGI's Fortran 
> > frontend, and associated Fortran runtime library, for contribution 
> > to the LLVM project. PGI is now working on isolating the necessary 
> > frontend components from their existing compiler code base and 
> > adapting those components to produce LLVM IR for consumption by our 
> > existing infrastructure.
> This sounds very interesting Hal (and Doug), and I’m glad to hear 
> about it.  I look forward to when more details and code is available,
> -Chris
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Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory

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