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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] dev-util/opencl-headers-2026.05.29::gentoo  USE="-test" 87 KiB
[ebuild  N     ] dev-libs/opencl-icd-loader-2026.05.29::gentoo  USE="-test" 113 KiB
[ebuild  N     ] virtual/opencl-3-r5::gentoo  0 KiB
[ebuild  N     ] sci-libs/clblast-1.5.2::gentoo  USE="opencl -client -cuda -examples -test" 410 KiB

Total: 4 packages (4 new), Size of downloads: 610 KiB