julia> f(x) = sin(x) + cos(x)
f (generic function with 1 method)

julia> @code_typed f(1.0)
CodeInfo(
1 1 ─ %1 = invoke Main.sin(%%x::Float64)::Float64                        │
  │   %2 = invoke Main.cos(%%x::Float64)::Float64                        │
  │   %3 = Base.add_float(%1, %2)::Float64                               │╻ +
  └──      return %3                                                     │
) => Float64