Gentoo Packages

dev-util/hipcc: Point hipcc at <pkg>llvm-core/rocm-llvm</pkg>, AMD's LLVM fork, instead of the system clang. This makes "hipconfig --hipclangpath" report AMD's compiler, which is what rocm.eclass's rocm_use_clang() reads, so every ROCm library built afterwards uses it. Required to build the ROCm math libraries: they use bf16 WMMA intrinsic signatures and generate AMDGPU assembly that a vanilla LLVM rejects.

Warning: USE flag 'amd-llvm' is used in ebuilds/metadata but is not defined in profiles/use.desc

Package	Local Description (use.local.desc)	Metadata Description (metadata.xml)
dev-util/hipcc	-	Point hipcc at <pkg>llvm-core/rocm-llvm</pkg>, AMD's LLVM fork, instead of the system clang. This makes "hipconfig --hipclangpath" report AMD's compiler, which is what rocm.eclass's rocm_use_clang() reads, so every ROCm library built afterwards uses it. Required to build the ROCm math libraries: they use bf16 WMMA intrinsic signatures and generate AMDGPU assembly that a vanilla LLVM rejects.

USE Flag: amd-llvm