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[Flang][OpenMP] Update DO CONCURRENT conversion for the device #136

Merged
merged 3 commits into from
Aug 13, 2024
Merged

[Flang][OpenMP] Update DO CONCURRENT conversion for the device #136

merged 3 commits into from
Aug 13, 2024

Commits on Aug 13, 2024

  1. [MLIR][OpenMP] Remove omp.parallel from loop wrapper operations 

    This patch removes the `LoopWrapperInterface` from `omp.parallel` and updates
the semantics of the interface to make loop wrapper restrictions mandatory to
operations that have it, rather than a role they might optionally take.

MLIR operation verifiers are updated to expect the "hoisted omp.parallel"
representation for `distribute parallel do`, to be later implemented in place
of a loop wrapper `omp.parallel`.
    @skatrak
    skatrak committed Aug 13, 2024
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  2. [Flang][OpenMP] Re-implement lowering of 'DISTRIBUTE PARALLEL DO' 

    This patch updates the Flang lowering process for `distribute parallel do` to
follow the "hoisted `omp.parallel`" representation. Now temporary allocations
produced while lowering the loop body reside inside of that operation instead
of the loop wrappers' parent region.

Special handling of `omp.parallel` with regards to alloca creation is removed,
as it's no longer necessary to make this distinction. Impacted Lit tests are
updated according to the new representation.
    @skatrak
    skatrak committed Aug 13, 2024
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  3. [Flang][OpenMP] Update DO CONCURRENT conversion for the device 

    This patch makes changes to the `DoConcurrentConversion` pass to follow the
"hoisted omp.parallel" representation when converting `do concurrent`
constructs into `target teams distribute parallel do`.
    @skatrak
    skatrak committed Aug 13, 2024
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