Index: llvm/lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- llvm/lib/Target/X86/X86ISelLowering.cpp
+++ llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -44999,9 +44999,11 @@
   unsigned NumElts = VecVT.getVectorNumElements();
   unsigned NumEltBits = VecVT.getScalarSizeInBits();
 
-  bool IsAnyOf = CmpOpcode == X86ISD::CMP && CmpVal.isZero();
+  bool IsAnyOf = CmpOpcode == X86ISD::CMP && CmpVal.isZero() &&
+                 CmpOp.getNode()->hasOneUse();
   bool IsAllOf = (CmpOpcode == X86ISD::SUB || CmpOpcode == X86ISD::CMP) &&
-                 NumElts <= CmpBits && CmpVal.isMask(NumElts);
+                 NumElts <= CmpBits && CmpVal.isMask(NumElts) &&
+                 CmpOp.getNode()->hasOneUse();
   if (!IsAnyOf && !IsAllOf)
     return SDValue();