[PATCH] D141861: [nvptx-arch] Dynamically load the CUDA runtime if not found during the build

Mon Jan 30 13:56:48 PST 2023

srj added a comment.

In D141861#4091869 <https://reviews.llvm.org/D141861#4091869>, @jhuber6 wrote:

> In D141861#4091851 <https://reviews.llvm.org/D141861#4091851>, @srj wrote:
>
>>> https://github.com/llvm/llvm-project/commit/759dec253695f38a101c74905c819ea47392e515. Does it work if you revert this? I wouldn't think it wouldn't affect anything. That's the only change that happened after the 16 release as far as I'm aware.
>>
>> Reverting this (well, actually just monkey-patching in the old code) does indeed make things build correctly again -- a bit surprising to me too, but that's CMake for you. Reverting the change seems appropriate pending a tested fix.
>
> That's bizarre, that means it's finding `CUDAToolkit` but can't link against it?

It's finding a 64-bit CUDAToolkit, which it can't link against because the rest of the build is 32-bit.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D141861/new/

https://reviews.llvm.org/D141861