This is the mail archive of the mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: LLVM to get massive GPU support with Fortran

On Mon, Nov 16, 2015 at 4:19 PM, Toon Moene <> wrote:
> On 11/16/2015 10:11 PM, Jack Howarth wrote:
>> On Mon, Nov 16, 2015 at 2:14 PM, Toon Moene <> wrote:
>>> To put this in a (timeline) perspective:
>>> On the 18th of March, 2000, I announced Andy Vaught's work on the g95
>>> front-end to the gcc-patches mailing list.
>>> In 2004 (!) we merged the resulting compiler and run-time library into
>>> the
>>> gcc (cvs) repository (obviously, after the tree-ssa infrastructure went
>>> in -
>>> 2004-05-17, but before the creation of the 4.0 release branch -
>>> 2005-02-25).
>>> Then it took another 2 months for 4.0 to be released.
>>> Unless PGI manages to summon massively large (parallel) working groups to
>>> accomplish this, it might take a few years to fruition.
>> On the other hand, the llvm-dev posting implies that PGI will be
>> starting from an existing fortran front-end. If they only need to code
>> the middle-/back-end integration of llvm into a pre-existing mature
>> fortran front-end, the promised late 2016 release date might not be so
>> unlikely.
> The g95 front-end I mentioned in my 2000-03-18 post to the gcc-patches
> mailing list was "an existing front-end" by virtue of the fact that Andy
> Vaught mailed it to me and it did the work.
> Between 2000 and 2004, this front-end was coupled to the rest of the
> infrastructure of the GNU Compiler Collection. This was not trivial (just as
> it will not be trivial to couple the PGI front-end to the LLVM
> infrastructure).
> We'll see how many years it'll take, but don't count me in on holding my
> breath.

Of course one unknown is whether PGI had already done any work
internally with the llvm middle-/back-end. If so, they might not be
starting from scratch.

> --
> Toon Moene - e-mail: - phone: +31 346 214290
> Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
> At home:; weather:
> Progress of GNU Fortran:

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]