diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index fd7bfcbea33d..e34fa5b31d0d 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -12033,7 +12033,7 @@ static SDValue lowerShuffleAsBroadcast(const SDLoc &DL, MVT VT, SDValue V1,
     SDValue BaseAddr = Ld->getOperand(1);
     EVT SVT = BroadcastVT.getScalarType();
     unsigned Offset = BroadcastIdx * SVT.getStoreSize();
-    assert((Offset * 8) == BitOffset && "Unexpected bit-offset");
+    assert((int)(Offset * 8) == BitOffset && "Unexpected bit-offset");
     SDValue NewAddr = DAG.getMemBasePlusOffset(BaseAddr, Offset, DL);
     V = DAG.getLoad(SVT, DL, Ld->getChain(), NewAddr,
                     DAG.getMachineFunction().getMachineMemOperand(