[maleadt]

As the author of the underlying framework: the dependency on CUDA is unfortunate indeed, but it was the only viable option at the time. OpenCL tooling was (is) way more fragmented, there's no unified compilation target or back-end, differences between vendors, etc. However, much of this work has dealt with figuring out how to compile Julia for accelerators while integrating with the existing compiler, all of which is transferable to future back-ends. Once the SPIR-V back-end is better integrated with upstream LLVM, we will try to target that toolkit instead.

[nicwilson]

I maintain https://github.com/thewilsonator/llvm/tree/compute and https://github.com/thewilsonator/llvm-target-spirv which has (unused) tablegen definitions for SPIR-V, for LDC and DCompute. I'm _hoping_ to get some consensus on backend integration into LLVM trunk at IWOCL in May. More users of the backend are useful for convincing the LLVM folks of the usefulness of having a single backend in trunk.