Set input as clock by name (clk)
+++++++++++++++++++++++++++++++++++

An input wire can be set as a clock by assigning `clk` as its name.

.. symbolator:: ../../../tests/clocks/input_named_clk/input_named_clk.sim.v

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.. literalinclude:: ../../../tests/clocks/input_named_clk/input_named_clk.sim.v
   :language: verilog
   :start-after: */
   :caption: tests/clocks/input_named_clk/input_named_clk.sim.v

As such, the `is_clock` attribute of the `clk` port is set to 1, without needing to set anything else in the verilog code.

.. literalinclude:: ../../../tests/clocks/input_named_clk/golden.model.xml
   :language: xml
   :caption: tests/clocks/input_named_clk/golden.model.xml