[all-commits] [llvm/llvm-project] a3ac59: [flang][cuda] Defer data-transfer conversion in Op...

[Valentin Clement (バレンタイン クレメン) via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a3ac598a8782df337f477672979d4dd53dc601b0
      https://github.com/llvm/llvm-project/commit/a3ac598a8782df337f477672979d4dd53dc601b0
  Author: Valentin Clement (バレンタイン クレメン) <clementval at gmail.com>
  Date:   2026-09-24 (Thu, 24 Sep 2026)

  Changed paths:
    M flang/include/flang/Optimizer/Transforms/Passes.td
    M flang/lib/Optimizer/Builder/FIRBuilder.cpp
    M flang/lib/Optimizer/Transforms/CUDA/CUFOpConversion.cpp
    A flang/test/Fir/CUDA/cuda-data-transfer-defer-acc-routine.mlir

  Log Message:
  -----------
  [flang][cuda] Defer data-transfer conversion in OpenACC routines (#225906)

Add an option so cuf-convert can leave cuf.data_transfer in the
host copy of an OpenACC routine until host/device specialization.
After that, transfers in a specialized device body become
assignments. Place allocas inside IsolatedFromAbove offload
regions so later FIR lowering does not store into a temporary
defined outside acc.compute_region.



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