Device library build repository for AMD GPU.

In order to keep build complexity of IREE down, we build AMDGPU device library bitcode out of tree and include it as binaries by default. This repository contains the scripts to do this build and it hosts the release artifacts.

This assumes that you have an IREE source directory at ../iree and a build dir at ../iree-build. If not the case, set IREE_SOURCE_DIR and IREE_BUILD_DIR env vars. IREE must have been built with the ninja generator and support for AMDGPU in its LLVM (typically by enabling the corresponding HAL target backend).

Run:

git submodule update --init
./build.sh

This will save a zip file of bitcode binaries like build/amdgpu-device-libs-llvm-6aaa03a0232b89682e0745433bdfb4d785f64a01.zip where the commit hash is the hash of the LLVM which produced them.

We just use GH releases to host artifacts. Go to the website and create a new release. Upload the zip file to it.