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

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

[ebuild  N     ] dev-perl/Scope-Guard-0.210.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 5 KiB
[ebuild  N     ] dev-perl/ExtUtils-Depends-0.800.200::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 17 KiB
[ebuild  N     ] dev-perl/Task-Weaken-1.60.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 28 KiB
[ebuild  N     ] dev-perl/B-Utils-0.270.0-r3::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 73 KiB
[ebuild  N     ] dev-perl/B-OPCheck-0.320.0-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 75 KiB

Total: 5 packages (5 new), Size of downloads: 196 KiB