Oh wow! I haven’t seen a thing like this in a very while!
Updating Arch Linux at the farm’s office PC.

Turned out, it’s
rocm-llvm-2:7.2.4-2-x86_64 998.3 MiB
rocm-llvm-2:7.2.4-2-x86_64 1374.9 MiB
( 2/70) upgrading rocm-llvm
New optional dependencies for rocm-llvm
rocm-openmp: OpenMP host runtime and GPU offloading
sudo pacman -Syu rocm-openmp
Packages (1) rocm-openmp-7.2.4-1
Total Download Size: 37.12 MiB
Total Installed Size: 131.84 MiB
Installed rocm-openmp, just in case. Have no idea whether I need it.