How to add a new backend to onnx-mlir RISC-V?

[xysxs]

Can I use the riscv toolchain to build this project so that I can generate a static library for the riscv architecture?

[AlexandreEichenberger]

This compiler use the LLVM backend, so you should be able to use it to gen riskv objects. We currently target Z, PPC, x86 linux/windows, arm64(macOS). So we have quite a bit of coverage already, but we do not have RISC-V machines so we have not tried it.

Let us know how this works for you.

[AlexandreEichenberger]

@xysxs can we close this issue? Is it working for you?

[SerodioJ]

Hi everyone,
I am trying to generate RISC-V code as well.
I was able to do it by building LLVM with RISC-V support, but one thing that I didn't discover is how to pass which extensions to use and ABI to follow when running onnx-mlir.

@AlexandreEichenberger would you have any tips on how to do so?