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

Calculating dependencies ... done!
Dependency resolution took 1.04 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/intel-vc-intrinsics-0.25.0::gentoo  LLVM_SLOT="22 -17 -18 -19 -20 -21" 153 KiB

Total: 1 package (1 new), Size of downloads: 153 KiB