Re: [PATCH v5 0/5] MR283: vkd3d-shader/dxil: Implement DX instruction StoreOutput.

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about libs/vkd3d-shader/dxil.c:
> ++block_idx;
>              code_block = (block_idx < function->block_count) ? function->blocks[block_idx] : NULL;

This was already here before, but I just realized that setting `code_block` to `NULL` might give a few problems if there are some other instructions (which shouldn't be there, but the shader might be untrusted input). Specifically, various lines in this loop assume that `code_block` is valid, and if it's not an `assert()` could be triggered.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/283#note_40645