[llvm-branch-commits] [llvm] [SelectionDAG][X86] Split via Concat <n x T> vector types for atomic load (PR #120640)

[Matt Arsenault via llvm-branch-commits]

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@@ -5218,7 +5218,11 @@ void SelectionDAGBuilder::visitAtomicLoad(const LoadInst &I) {
     L = DAG.getPtrExtOrTrunc(L, dl, VT);
 
   setValue(&I, L);
-  DAG.setRoot(OutChain);
+
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arsenm wrote:

Atomics cannot be vectorized, so I don't understand. No matter what, this does not belong in this patch 

https://github.com/llvm/llvm-project/pull/120640