| Issue |
138751
|
| Summary |
[apt.llvm.org] libclc packages should include the targets spirv-mesa3d- and spirv64-mesa3d-
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
TheRealCuran
|
Running `RUSTICL_ENABLE=radeonsi clinfo` with the latest `llvm-toolchain-snapshot` packages from apt.llvm.org results in the following error:
```
Libclc failed to load. Please make sure it is installed and provides spirv-mesa3d-.spv and/or spirv64-mesa3d-.spv
```
Later in the output `clinfo` reports, that no devices were found.
At the moment the `llvm-toolchain-snapshot` packages won't install any `*.spv` artifacts in `libclc`, see https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/blob/snapshot/debian/libclc-X.Y.install.in#L2
On top of that non will be built, because `debian/rules` tests for the existence of `llvm-spirv` or `llvm-spirv-$LLVM_VERSION` in https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/blob/snapshot/debian/rules#L359-L363 (which should never be true).
This is a bit of a hen egg issue, since you need LLVM/CLang headers available (besides the `spirv-headers` and the `spirv-tools`). Thus you could either do the libclc build extra and have the other parts built individually (first LLVM/CLang, then the headers, tools, then `llvm-spirv` and finally libclc) or, if I read https://github.com/llvm/llvm-project/blob/main/libclc/CMakeLists.txt#L109 correctly, by providing the required sources in the LLVM build tree.
`llvm-spirv` from https://github.com/KhronosGroup/SPIRV-LLVM-Translator must match the major version of LLVM (and usually needs to be pretty up-to-date for it to be buildable with `HEAD` of LLVM. So far Debian has an individual spirv-llvm-translator package, but that hasn't been updated in a while. And I have no idea what would be better with regards to the apt.llvm.org build of libclc (ie. providing `llvm-spirv` in-tree or building it extra).
Anyway: please provide the `spirv-mesa3d-` and `spirv64-mesa3d-` targets in the apt.llvm.org Debian package builds of `llvm-toolchain-snapshot`. Thanks!
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