[llvm] [IR][LangRef] Add partial reduction add intrinsic (PR #94499)

[Graham Hunter via llvm-commits]

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@@ -7914,6 +7915,35 @@ void SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I,
     setValue(&I, Trunc);
     return;
   }
+  case Intrinsic::experimental_vector_partial_reduce_add: {
+    auto DL = getCurSDLoc();
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huntergr-arm wrote:

nit: It would be good to remove the 'auto' declarations and use the appropriate named types (SDValue, EVT, int, etc). I think you should already have a variable in scope getCurSDLoc() as well (sdl, from the start of the function).

https://github.com/llvm/llvm-project/pull/94499