[llvm-dev] [Openmp-dev] [RFC] Proposed interplay of Clang & Flang & LLVM wrt. OpenMP [@Flang-dev]

[Doerfert, Johannes via llvm-dev]

Alexey, please move the discussion to the flang mailing list.

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________________________________
From: Alexey Bataev <a.bataev at outlook.com>
Sent: Thursday, May 2, 2019 11:54:14 AM
To: Doerfert, Johannes; LLVM-Dev
Cc: cfe-dev at lists.llvm.org; Openmp-dev
Subject: Re: [Openmp-dev] [RFC] Proposed interplay of Clang & Flang & LLVM wrt. OpenMP [@Flang-dev]


What you're talking about is the late outlining, which should be the part of the LLVM. As I understand, Intel already has preliminary implementation of this and they promised to publish it in May.

Also, this was discussed some time ago, if I remember it correctly, and it was recommended to implement this common codegen as a kind of plugin. I don't remember the final result of this discussion, though.

-------------
Best regards,
Alexey Bataev

02.05.2019 11:33, Doerfert, Johannes via Openmp-dev пишет:

Hi,

[I started this discussion on a single mailing list (flang-dev [0]) but
 this is a notice to the others (llvm, clang, openmp) so we hopefully
 get all interested parties involved.]

This is an RFC for the design of the OpenMP front-ends under the LLVM
umbrella. It is necessary to talk about this now as Flang (aka. F18) is
maturing at a very promising rate and about to become a sub-project next
to Clang.

TLDR;
Keep AST nodes and Sema separated but unify LLVM-IR generation for
OpenMP constructs based on the (almost) identical OpenMP directive
level.

For more information and to participate in the discussion, please see
the flang-dev post [0].

Thanks,
  Johannes



[0] http://lists.flang-compiler.org/pipermail/flang-dev_lists.flang-compiler.org/2019-May/000197.html





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