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This is the initial patch for the OpenMP-IR-Builder, as discussed on the
mailing list ([1] and later) and at the US Dev Meeting'19.
The design is similar to D61953 but:
- in a non-WIP status, with proper documentation and working.
- using a OpenMPKinds.def file to manage lists of directives, runtime
functions, types, ..., similar to the current Clang implementation.
- restricted to handle only (simple) barriers, to implement most
`#pragma omp barrier` directives and most implicit barriers.
- properly hooked into Clang to be used if possible (D69922).
- compatible with the remaining code generation.
Parts have been extracted into D69853.
The plan is to have multiple people working on moving logic from Clang
here once the initial scaffolding (=this patch) landed.
[1] http://lists.flang-compiler.org/pipermail/flang-dev_lists.flang-compiler.org/2019-May/000197.html
Reviewers: kiranchandramohan, ABataev, RaviNarayanaswamy, gtbercea, grokos, sdmitriev, JonChesterfield, hfinkel, fghanim
Subscribers: mgorny, hiraditya, bollu, guansong, jfb, cfe-commits, llvm-commits, penzn, ppenzin
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D69785
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