[llvm] [AMDGPU] Promote FMA bf16 ops to use v2bf16 (PR #215805)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp llvm/lib/Target/AMDGPU/SIISelLowering.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 1e03276ef..04fd69148 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -5954,9 +5954,8 @@ void SelectionDAGLegalize::PromoteNode(SDNode *Node) {
       Tmp1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, NVT, Node->getOperand(0));
       Tmp2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, NVT, Node->getOperand(1));
       Tmp3 = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, NVT, Node->getOperand(2));
-      SDValue Result =
-          DAG.getNode(Node->getOpcode(), dl, NVT, Tmp1, Tmp2, Tmp3,
-                      Node->getFlags());
+      SDValue Result = DAG.getNode(Node->getOpcode(), dl, NVT, Tmp1, Tmp2, Tmp3,
+                                   Node->getFlags());
       Results.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, OVT, Result,
                                     DAG.getConstant(0, dl, MVT::i32)));
       break;

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https://github.com/llvm/llvm-project/pull/215805