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-perl/Class-Loader-2.30.0-r2::gentoo  PERL_FEATURES="ithreads (-debug) -quadmath" 7 KiB
[ebuild  N     ] dev-perl/Math-Pari-2.30.528::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 2200 KiB
[ebuild  N     ] dev-perl/Statistics-ChiSquare-1.0.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 29 KiB
[ebuild  N     ] dev-perl/Crypt-Random-1.540.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 22 KiB

Total: 4 packages (4 new), Size of downloads: 2256 KiB