[all-commits] [llvm/llvm-project] 87bf82: [mlir][OpenMP] Lower REDUCTION clause for SECTIONS...

[Tom Eccles via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 87bf82d14d7f03ce67ddd56d9da457a23c316f0e
      https://github.com/llvm/llvm-project/commit/87bf82d14d7f03ce67ddd56d9da457a23c316f0e
  Author: Tom Eccles <tom.eccles at arm.com>
  Date:   2024-07-12 (Fri, 12 Jul 2024)

  Changed paths:
    M mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp
    M mlir/test/Target/LLVMIR/openmp-llvm.mlir
    A mlir/test/Target/LLVMIR/openmp-reduction-array-sections.mlir
    A mlir/test/Target/LLVMIR/openmp-reduction-sections.mlir

  Log Message:
  -----------
  [mlir][OpenMP] Lower REDUCTION clause for SECTIONS construct (#97859)

This shares code with WsloopOp (the changes to Wsloop should be NFC).
OpenMPIRBuilder basically implements SECTIONS as a wsloop over a case
statement with each SECTION as a case for a particular loopiv value.

Unfortunately it proved very difficult to share code between these and
ParallelOp. ParallelOp does quite a few things differently (doing more
work inside of the bodygen callback and laying out blocks differently).
Aligning reduction implementations for wsloop and parallel will probably
involve functional changes to both, so I won't attempt that in this
commit.



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