[PATCH v4 0/6] MR489: vkd3d-shader: Prepare for 64-bit integer support.

[Conor McCarthy (＠cmccarthy)]

This is ready for review, but may not go upstream until after the release.

--
  v4: vkd3d-shader/spirv: Introduce a compiler feature flag for int64 capability.
 
https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/489