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elementwise
===========

Covers ``cast``, ``fill``, the unary ops (``zero``, ``reciprocal``, ``sqrt``,
``exp``, ``exp2``, ``silu``), the binary ops (``add``, ``sub``, ``mul``,
``fdiv``), and ``fma``. Every op registers **two** variants — ``reg`` and
``smem`` — both at priority 10; the operand storage scope (all-register vs
all-shared) is the mutually-exclusive discriminator. Each op is described by an
``OpSpec`` (a ``parse`` that builds the destination + source list, optional dtype
checks, and the scalar expression applied per element).

.. list-table::
   :header-rows: 1
   :widths: 24 18 58

   * - Variant
     - Operands
     - Lowering
   * - :doc:`elementwise/reg`
     - all register
     - partition induced by the register layout; op applied per register
   * - :doc:`elementwise/smem`
     - all shared
     - synthesized ``[outer, threads, vec]`` partition; op applied per (vectorized)
       element

.. toctree::
   :maxdepth: 1

   elementwise/reg
   elementwise/smem