diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -14782,7 +14782,7 @@
   // Look through FP_EXTEND nodes to do more combining.
 
   // fold (fadd (fpext (fmul x, y)), z) -> (fma (fpext x), (fpext y), z)
-  if (matcher.match(N1, ISD::FP_EXTEND)) {
+  if (matcher.match(N0, ISD::FP_EXTEND)) {
     SDValue N00 = N0.getOperand(0);
     if (isContractableFMUL(N00) &&
         TLI.isFPExtFoldable(DAG, PreferredFusedOpcode, VT,