[all-commits] [llvm/llvm-project] a0c590: [Frontend][OpenMP] Allow implicit clauses to fail ...

Krzysztof Parzyszek via All-commits all-commits at lists.llvm.org
Thu Jul 25 07:20:39 PDT 2024


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a0c590795eae48903a013699fe84db335854fa80
      https://github.com/llvm/llvm-project/commit/a0c590795eae48903a013699fe84db335854fa80
  Author: Krzysztof Parzyszek <Krzysztof.Parzyszek at amd.com>
  Date:   2024-07-25 (Thu, 25 Jul 2024)

  Changed paths:
    M llvm/include/llvm/Frontend/OpenMP/ConstructDecompositionT.h
    M llvm/unittests/Frontend/OpenMPDecompositionTest.cpp

  Log Message:
  -----------
  [Frontend][OpenMP] Allow implicit clauses to fail to apply (#100460)

The `linear(x)` clause implies `firstprivate(x)` on the compound
construct if `x` is not an induction variable. With more construct
combinations coming in OpenMP 6.0, the `firstprivate` clause may not be
possible to apply, e.g. in "masked simd".
An additional benefit from this change is that it allows treating leaf
constructs as combined constructs with a single constituent. Otherwise,
a `linear` clause on a lone `simd` construct could imply a
`firstprivate` clause that can't be applied.



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