Fma's and poly eval

General Usage Performance
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2

0.036 ns looks like the compiler figured out the answer and didn’t do any work. This is what I get when using the Ref trick to hide the value from the compiler:

julia> @btime eval_ps($(Ref(0.3))[]);
  2.163 ns (0 allocations: 0 bytes)

julia> @btime standard_eval($(Ref(0.3))[]);
  2.872 ns (0 allocations: 0 bytes)
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