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[MLIR][OpenMP][NFC] Document omp.section(s) block arguments #98175

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Jul 10, 2024
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[MLIR][OpenMP][NFC] Document omp.section(s) block arguments #98175

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7 changes: 6 additions & 1 deletion mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
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Original file line number Diff line number Diff line change
Expand Up @@ -223,7 +223,10 @@ def SectionOp : OpenMP_Op<"section", [HasParent<"SectionsOp">],
let description = [{
A section operation encloses a region which represents one section in a
sections construct. A section op should always be surrounded by an
`omp.sections` operation.
`omp.sections` operation. The section operation may have block args
which corespond to the block arguments of the surrounding `omp.sections`
operation. This is done to reflect situations where these block arguments
represent variables private to each section.
}];
let assemblyFormat = "$region attr-dict";
}
Expand All @@ -242,6 +245,8 @@ def SectionsOp : OpenMP_Op<"sections", traits = [
distributed among and executed by the threads in a team. Each `omp.section`
is executed once by one of the threads in the team in the context of its
implicit task.
Block arguments for reduction variables should be mirrored in enclosed
`omp.section` operations.
}] # clausesDescription;

// Override region definition.
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