We implement a translator that support translating NVPTX to SPIR-V. This translator is modified from LLVM-SPIR-V Translator.

Here are the environment requirements for building&executing the translators. Using environments with other versions may require modification in source code.

• Ubuntu 16.0.4
• LLVM 10.0.1
• CMake 3.5.1
• gcc 7.5.0

git clone https://github.com/gthparch/NVPTX-SPIRV-Translator
mkdir NVPTX-SPIRV-Translator/build
cd NVPTX-SPIRV-Translator/build
cmake .. -DLLVM_DIR=<llvm_build_dir>/lib/cmake/llvm/
make llvm-spirv -j`nproc`

Where llvm_build_dir is the LLVM build directory.

To translate a NVPTX IR (nvptx_input.bc) to a SPIR-V (spirv_output.spv), execute the following command:

llvm-spirv -o spirv_output.spv nvptx_input.bc

We maintain the code for converting SPIR-V to OpenCL IR in the originally translator. To translate a SPIRV IR (spirv_input.spv) to a OpenCL IR (ocl_output.bc), execute the following command:

llvm-spirv -r -o ocl_output.bc spirv_input.spv