Diogo Correia
1ed61918a9
Due to a bug in LLVM 21, build fails on x86_64 with: `rustc-LLVM ERROR: Cannot select: intrinsic %llvm.x86.avx512.vpdpbusd.512`. This has been fixed in Rust's build of LLVM and LLVM 22 [1] but this is not reflected in nixpkgs' packaging of rustc. For this reason, we temporarily disable avx512vnni support until this is fixed in nixpkgs. This might cause a performance penalty, but should not affect correctness. See https://github.com/NixOS/nixpkgs/pull/537113#issuecomment-4846239887 [1]: https://github.com/rust-lang/llvm-project/commit/94e2c19f86a699d7a19ff0f4130b696699189c8d