sys-devel/llvm-roc: enbable openmp component

[littlewu2508]

sci-libs/rocSPARSE fails tests if openmp is not enabled in llvm-roc

Package-Manager: Portage-3.0.30, Repoman-3.0.3
Signed-off-by: Yiyang Wu xgreenlandforwyy@gmail.com

[gentoo-bot]

Pull Request assignment

Submitter: @littlewu2508
Areas affected: ebuilds
Packages affected: sys-devel/llvm-roc

sys-devel/llvm-roc: @candrews

Linked bugs

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[gentoo-repo-qa-bot]

Pull request CI report

Report generated at: 2022-05-04 10:40 UTC
Newest commit scanned: 94f15eb
Status: ✅ good

There are existing issues already. Please look into the report to make sure none of them affect the packages in question:
https://qa-reports.gentoo.org/output/gentoo-ci/ae56576464/output.html

[heroxbd]

With clang-13 in the system it fails with:

-- LIBOMPTARGET: Building AMDGPU plugin linked against libhsa
-- LIBOMPTARGET: Not generating amdgcn test targets as amdgpu-arch is not found
-- LIBOMPTARGET: Building CUDA offloading plugin.
-- LIBOMPTARGET: Building CUDA plugin for dlopened libcuda
-- LIBOMPTARGET: Disabling tests using CUDA plugin as cuda may not be available
-- LIBOMPTARGET: Not building PPC64 offloading plugin: machine not found in the system.
-- LIBOMPTARGET: Not building PPC64le offloading plugin: machine not found in the system.
-- LIBOMPTARGET: Not building nec-aurora plugin: libveo or libveosinfo not found.
-- LIBOMPTARGET: Building x86_64 offloading plugin.
-- LIBOMPTARGET: Not building AMDGCN device RTL: AOMP not found
-- LIBOMPTARGET: Not building NVPTX deviceRTL by default on CUDA free system.
   -- Found AMDDeviceLibs config at /usr/lib/cmake/AMDDeviceLibs
   -- Building libm libdevice with LLVM 14.0.0roc found at /usr/lib/llvm/roc
   -- Building default set of AMD GPUs: gfx700;gfx701;gfx801;gfx803;gfx900
   -- You may override default with GFXLIST environment variable 
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
------------------- DIR: /var/tmp/portage/sys-devel/llvm-roc-5.0.2-r1/work/llvm-project-rocm-5.0.2/llvm_build/projects/openmp/libomptarget/deviceRTLs/libm/../../../runtime/src
   -- Building hostrpc with LLVM 14.0.0roc found at /usr/lib/llvm/roc
-- LIBOMPTARGET: Building DeviceRTL. Using clang: CLANG_TOOL-NOTFOUND

CLANG_TOOL-NOTFOUND does it depend strictly on clang-14?

[littlewu2508]

CLANG_TOOL-NOTFOUND does it depend strictly on clang-14?

Hmm I met other errors if clang-14 or llvm-roc is absent. Seems that a better solution to build libomp after installation of llvm-roc, just like sys-libs/libomp does.

[heroxbd]

Hmm I met other errors if clang-14 or llvm-roc is absent. Seems that a better solution to build libomp after installation of llvm-roc, just like sys-libs/libomp does.

I think that's the way to go. Yes.

[heroxbd]

Any updates?

[littlewu2508]

Any updates?

Currently not.

I decided to leave this issue together with https://bugs.gentoo.org/851702

I guess we should make some changes to the current status. sys-devel/llvm-roc is a simple installation which does not fit into Gentoo's llvm slotting logic, and that causes problems: when programs not only depends on hip but also (indirectly) links to (system) llvm, things broke.

Also, libomp can be also handled if we follow the Gentoo's llvm installation paradigm. Finding a way to merge llvm-roc into Gentoo's llvm system, is the ultimate solution.