felipecrv opened a new pull request, #43542:
URL: https://github.com/apache/arrow/pull/43542
### Rationale for this change
Kernels shouldn't segfault when executing against GPU-allocated (or any
other non-CPU device) Arrays.
### What changes are included in this PR?
- An efficient class for representing sets of `DeviceAllocationType` values
(using `<bitset>`)
- Calculation of sets of device types from `ChunkedArray`, `Datum`,
`RecordBatch`, and `Table`
- A way of declaring which device allocation types a kernel can handle per
parameter
### Are these changes tested?
Not yet. I'm just demoing the concept.
TODO: tests.
### Are there any user-facing changes?
New member functions to some classes.
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