diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -34558,7 +34558,7 @@
 
   //  SinkMBB:
   //   %Result = phi [ %FalseValue, SecondInsertedMBB ], [ %TrueValue, ThisMBB ]
-  Register DestReg = FirstCMOV.getOperand(0).getReg();
+  Register DestReg = SecondCascadedCMOV.getOperand(0).getReg();
   Register Op1Reg = FirstCMOV.getOperand(1).getReg();
   Register Op2Reg = FirstCMOV.getOperand(2).getReg();
   MachineInstrBuilder MIB =
@@ -34571,11 +34571,6 @@
   // The second SecondInsertedMBB provides the same incoming value as the
   // FirstInsertedMBB (the True operand of the SELECT_CC/CMOV nodes).
   MIB.addReg(FirstCMOV.getOperand(2).getReg()).addMBB(FirstInsertedMBB);
-  // Copy the PHI result to the register defined by the second CMOV.
-  BuildMI(*SinkMBB, std::next(MachineBasicBlock::iterator(MIB.getInstr())), DL,
-          TII->get(TargetOpcode::COPY),
-          SecondCascadedCMOV.getOperand(0).getReg())
-      .addReg(FirstCMOV.getOperand(0).getReg());
 
   // Now remove the CMOVs.
   FirstCMOV.eraseFromParent();