[workstream] Matrix Support

[damyanp]

Relies on the LLVM Matrix extension: https://clang.llvm.org/docs/MatrixTypes.html. As with all the other work documented here, SPIR-V support will be added throughout.

Render Mesh (#15)

• [ ] Matrix declaration
• [ ] Matrix swizzle accessors
• [ ] Constrain matrix sizes using concepts
• [ ] Elementwise matrix operations
  • Includes various __builtin_elementwise* functions
• [ ] Matrix/Matrix multiplication is supported using the LLVM matrix extensions
  • Requires changing existing behavior of * operator for HLSL
• [ ] Matrix row/column-major layouts
  • Allow type qualifiers, pragmas, conversions
• [ ] Matrix Load/Store

  Pixel and Vertex Shaders (#16)

• [ ] Matrix Initialization

  Mesh Shaders (#17)

• [ ] Groupshared matrices

  Ray Tracing (#18)

• [ ] Support ObjectToWorld and WorldToObject matrices

  V1 Release (#19)

• [ ] Boolean matrices
• [ ] Optimizations such as constant propagation are being applied to matrices.
• [ ] llvm/llvm-project#88060