Re: [PATCH v12 0/4] MR84: vkd3d-shader/spirv: Merge all shader IR fork and join phases into a single phase.

[Conor McCarthy (＠cmccarthy)]

The immediate constant will be bitcast to float because temp variables are float. When I tried using `VKD3D_DATA_FLOAT` for reg->data_type it didn't work, but it does now. Not sure what happened there.

Fork/join phases write patch constant output registers, so the maximum phase count is related to `MAX_REG_OUTPUT`. The largest possible count is one for each component of each output register, so I've expanded the array to that size.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/84#note_25245