diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 9dfa661e7ab7..bca249e0fcb1 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -34293,6 +34293,7 @@ bool X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(
   }
 
   // Simplify target shuffles.
+  // TODO: Use resolveTargetShuffleInputs.
   if (!isTargetShuffle(Opc) || !VT.isSimple())
     return false;