[PATCH v5 0/4] MR84: vkd3d-shader/spirv: Merge all shader IR fork and join phases into a single phase.

[Conor McCarthy (＠cmccarthy)]

Normalise the incoming vkd3d_shader_instruction IR to the shader model 6 pattern where only one patch constant function is emitted. This allows generation of a single patch constant function in SPIR-V.

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  v5: vkd3d-shader: Introduce an internal sm6 signature structure.
      vkd3d-shader/spirv: Move the function declaration from spirv_compiler_begin_shader_phase() to spirv_compiler_enter_shader_phase().
      vkd3d-shader/spirv: Remove the hull shader phase array.
      vkd3d-shader/spirv: Merge all shader IR fork and join phases into a single phase.
 
https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/84