diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 842f6c3025d5..4fc1d00cad0a 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -10916,8 +10916,6 @@ static SDValue lowerVectorShuffle(SDValue Op, const X86Subtarget *Subtarget,
   if (VT.getSizeInBits() == 256)
     return lower256BitVectorShuffle(Op, V1, V2, VT, Subtarget, DAG);
 
-  // Force AVX-512 vectors to be scalarized for now.
-  // FIXME: Implement AVX-512 support!
   if (VT.getSizeInBits() == 512)
     return lower512BitVectorShuffle(Op, V1, V2, VT, Subtarget, DAG);