reducedim/test reductions over region: (3, 4) @test #= /cache/build/tester-amdci5-15/julialang/julia-master/julia-c0b3248ed0/share/julia/test/reducedim.jl:78 =# @inferred(sum(Areduc, dims = region)) ≈ safe_sum(Areduc, region)