[PATCH v4 0/3] MR662: vkd3d-shader/ir: Introduce a better CFG structurizer, part 2.

[Giovanni Mascellani (＠giomasce)]

This applies on top of !656, the last three commits belong here.

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  v4: vkd3d-shader/ir: Compute the loops in the control flow graph.
      vkd3d-shader/ir: Add a debug buffer to struct vsir_cfg.
      vkd3d-shader/ir: Properly handle function-local indexable temps when flattening control flow.
 
https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/662