These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.03 s (backtrack: 0/20).

[ebuild  N     ] sci-ml/oneDNN-3.12::gentoo  USE="openmp -cblas -doc -mkl -static-libs -test" 13682 KiB

Total: 1 package (1 new), Size of downloads: 13682 KiB