[flang-commits] [flang] [llvm] [flang][cuda] Fix device-variable leaks and reset-safe cleanup (PR #209865)

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khaki3 wrote:

I'll commit this one.

We have allowed `cudaDeviceReset` only in main while skipping main-program finalization, which leaked managed descriptor allocations.

With this change, we also allow `cudaDeviceReset` in subroutines and clean up main-program CUDA allocations and descriptors.

If we decide that calling `cudaDeviceReset` is prohibited, we can remove the CUDA cleanup guard.

https://github.com/llvm/llvm-project/pull/209865