[all-commits] [llvm/llvm-project] c8dca5: [Flang][OpenMP][Lower] Refactor lowering of compou...

[Sergio Afonso via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c8dca5bc0733e2fba81008fc33fcad1f45ba666a
      https://github.com/llvm/llvm-project/commit/c8dca5bc0733e2fba81008fc33fcad1f45ba666a
  Author: Sergio Afonso <safonsof at amd.com>
  Date:   2024-04-17 (Wed, 17 Apr 2024)

  Changed paths:
    M flang/include/flang/Semantics/openmp-directive-sets.h
    M flang/lib/Lower/OpenMP/OpenMP.cpp

  Log Message:
  -----------
  [Flang][OpenMP][Lower] Refactor lowering of compound constructs (#87070)

This patch simplifies the lowering from PFT to MLIR of OpenMP compound
constructs (i.e. combined and composite).

The new approach consists of iteratively processing the outermost leaf
construct of the given combined construct until it cannot be split
further. Both leaf constructs and composite ones have `gen...()`
functions that are called when appropriate.

This approach enables treating a leaf construct the same way regardless
of if it appeared as part of a combined construct, and it also enables
the lowering of composite constructs as a single unit.

Previous corner cases are now handled in a more straightforward way and
comments pointing to the relevant spec section are added. Directive sets
are also completed with missing LOOP related constructs.



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