LinearAlgebra/tridiag/elty = Int32/tril/triu @test #= /cache/build/tester-amdci4-11/julialang/julia-master/julia-861b454e15/share/julia/stdlib/v1.13/LinearAlgebra/test/tridiag.jl:153 =# @inferred(tril!(copy(Tridiagonal(dl, d, du)), -2)) == Tridiagonal(zerosdl, zerosd, zerosdu)