reducedim/test reductions over region: (3, 4) @test isequal(#= /usr/home/julia/.buildkite-agent/builds/freebsd13-amdci6-0/julialang/julia-master/julia-c0b3248ed0/share/julia/test/reducedim.jl:95 =# @inferred(count(!, Breduc, dims = region, init = Int16(0))), safe_count(.!(Breduc), region) .% Int16)