LinearAlgebra/tridiag/elty = Int64/tril/triu @test #= /cache/build/tester-amdci4-10/julialang/julia-master/julia-4d2a350870/share/julia/stdlib/v1.13/LinearAlgebra/test/tridiag.jl:168 =# @inferred(triu!(copy(SymTridiagonal(d, dl)), -1)) == Tridiagonal(dl, d, dl)