Optimization
------------

The IR-code generated by the front-end can be optimized in many ways. The
compiler does not have the best way to optimize code, but instead has a
bag of tricks it can use.

Abstract base classes
~~~~~~~~~~~~~~~~~~~~~

The optimization passes all subclass one of the following base classes.

.. autoclass:: ppci.opt.transform.ModulePass
    :members:

.. autoclass:: ppci.opt.transform.FunctionPass
    :members:

.. autoclass:: ppci.opt.transform.BlockPass
    :members:

.. autoclass:: ppci.opt.transform.InstructionPass
    :members:


Optimization passes
~~~~~~~~~~~~~~~~~~~

.. autoclass:: ppci.opt.Mem2RegPromotor

.. autoclass:: ppci.opt.LoadAfterStorePass

.. autoclass:: ppci.opt.DeleteUnusedInstructionsPass

.. autoclass:: ppci.opt.RemoveAddZeroPass

.. autoclass:: ppci.opt.CommonSubexpressionEliminationPass

.. autoclass:: ppci.opt.cjmp.CJumpPass

Uml
~~~

.. uml:: ppci.opt