Re: [PATCH 0/2] MR548: vkd3d-shader/spirv: Support vector source param for FIRSTBIT_HI and FIRSTBIT_SHI instructions.

[Henri Verbeet (＠hverbeet)]

> For testing I can NOP the fixup instructions away pretty easily in a hex editor. I'm not sure we should be making this change though, unless it fixes something. While it's not great to depend on the presence of fixup instructions (which DXIL also contains btw), if the backend can assume they are always present, then the code is not broken. @hverbeet?

No, as Giovanni said, we can't assume our input is produced by a particular compiler.