On 11/16/2015 10:11 PM, Jack Howarth wrote:
On Mon, Nov 16, 2015 at 2:14 PM, Toon Moene <t...@moene.org> 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.
--
Toon Moene - e-mail: t...@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/
Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news
