[Beowulf] LFortran ... a REPL/Compiler for Fortran

Peter Kjellström cap at nsc.liu.se
Tue Mar 26 02:40:09 PDT 2019

On Mon, 25 Mar 2019 10:42:08 -0400
Gerald Henriksen <ghenriks at gmail.com> wrote:

> Flang on the other hand is really at this point 2 projects, both
> supported/developed by Nvidia.

Well 3 projects in a sense. The original llvm flang (now mostly
forgotten) can still cause confusion. It really would have been better
if Nvidia handn't insisted on calling their PGI front-end flang..

And while it [nvidia flang] is probably the most functional of the
three it has some major problems (including the, as I understand it,
upstream unacceptable hack way of generating llvm ir).

/Peter K

> Flang is the current compiler that is either complete or reasonably
> complete from a Fortran standpoint but requires various things to work
> (a custom version of clang for example I believe).
> Also included under the Flang umbrella is f18, a new Fortran compiler
> being written from scratch with the goal of it being a proper member
> of the LLVM community, and they have interacted with the existing
> LLVM/clang community to find the best way to proceed.
> In both cases (Flang/f18) they are traditional style compilers that
> don't offer an interactive mode I believe.

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