[PATCH] D149451: [NVPTX] Add NVPTXCtorDtorLoweringPass to handle global ctors / dtors

[Artem Belevich via Phabricator via llvm-commits]

tra added a comment.

The standard CUDA runtime has no mechanisms for dealing with dynamic initializers, so enabling this pass in NVPTX back-end by default is not the right thing to do.

We may need to keep this pass behind some sort of flag, or add the it for stand-alone compilation mode only.

> An alternative is to also do what AMDGPU does and emit a kernel that can be called. I eschewed that mainly because we would get naming conflicts,

CUDA front-end uses `--cuid` for somewhat similar purpose of disambiguating TU-specific objects. We could pass it as an option to the pass to give each TU a unique ID and avoid naming conflicts.


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D149451