defmodule Orb.Numeric.Subtract do
  @moduledoc """
  WebAssembly numeric `sub` instruction:
  - `i32.sub`
  - `i64.sub`
  - `f32.sub`
  - `f64.sub`

  [MDN reference](https://developer.mozilla.org/en-US/docs/WebAssembly/Reference/Numeric/Subtraction)
  """

  def optimized(_type, a, 0), do: a
  def optimized(type, a, b), do: Orb.Instruction.new(type.wasm_type(), :sub, a, b)
end