[clang] [llvm] [HLSL] [DXIL] Implement the AddUint64 HLSL function and the UAddc DXIL op (PR #127137)

[Finn Plummer via cfe-commits]

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@@ -50,6 +50,7 @@ def HandleTy : DXILOpParamType;
 def ResBindTy : DXILOpParamType;
 def ResPropsTy : DXILOpParamType;
 def SplitDoubleTy : DXILOpParamType;
+def BinaryWithCarryTy : DXILOpParamType;
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inbelic wrote:

There is an issue to track doing it a more generic way. I believe the consensus was to wait until we have better understanding of a more general set of paths to handle first.

Relevant: https://github.com/llvm/llvm-project/pull/125319#discussion_r1939737449

https://github.com/llvm/llvm-project/pull/127137