[all-commits] [llvm/llvm-project] aa6192: [DirectX] Lower `@llvm.dx.handle.fromBinding` to D...

[Justin Bogner via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: aa61925eace86602ce1da00bda4a993719061df2
      https://github.com/llvm/llvm-project/commit/aa61925eace86602ce1da00bda4a993719061df2
  Author: Justin Bogner <mail at justinbogner.com>
  Date:   2024-08-23 (Fri, 23 Aug 2024)

  Changed paths:
    M llvm/docs/DirectX/DXILResources.rst
    M llvm/include/llvm/IR/IntrinsicsDirectX.td
    M llvm/lib/Target/DirectX/DXIL.td
    M llvm/lib/Target/DirectX/DXILOpBuilder.cpp
    M llvm/lib/Target/DirectX/DXILOpBuilder.h
    M llvm/lib/Target/DirectX/DXILOpLowering.cpp
    A llvm/test/CodeGen/DirectX/CreateHandle.ll
    A llvm/test/CodeGen/DirectX/CreateHandleFromBinding.ll

  Log Message:
  -----------
  [DirectX] Lower `@llvm.dx.handle.fromBinding` to DXIL ops

The `@llvm.dx.handle.fromBinding` intrinsic is lowered either to the
`CreateHandle` op or a pair of `CreateHandleFromBinding` and `AnnotateHandle`
ops, depending on the DXIL version. Regardless of the DXIL version we need to
emit metadata about the binding, but that's left to a separate change.

These DXIL ops all need to return the `%dx.types.Handle` type, but the llvm
intrinsic returns a target extension type. To facilitate changing the type of
the operation and all of its users, we introduce `%llvm.dx.cast.handle`, which
can cast between the two handle representations.

Pull Request: https://github.com/llvm/llvm-project/pull/104251



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