[Bug 49186] DXBC compiler generates incorrect spir-v code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49186

--- Comment #1 from Henri Verbeet  ---
Created attachment 67672
  --> https://bugs.winehq.org/attachment.cgi?id=67672
patch

It took me a while to get to this, but does the attached patch help? It may not
be fully correct; needs tests.

Also, how was hull0.fxc created? It has an invalid DXBC checksum (all zeroes).
Currently vkd3d-shader does not validate DXBC checksums, but it will in the
future.