LinearAlgebra/matmul/muladd & structured matrices @test #= C:\buildkite-agent\builds\win2k22-amdci6-7\julialang\julia-master\julia-9c8c57e067\share\julia\stdlib\v1.13\LinearAlgebra\test\matmul.jl:655 =# @evalpoly(A33, 1.0I, 1.0I) == I + A33