Index: lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp
===================================================================
--- lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp
+++ lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp
@@ -111,7 +111,7 @@
   const SIInstrInfo *TII = ST.getInstrInfo();
   MachineRegisterInfo &MRI = MF.getRegInfo();
   LiveIntervals *LIS = &getAnalysis<LiveIntervals>();
-  DenseSet<unsigned> RecalcRegs({AMDGPU::EXEC_LO, AMDGPU::EXEC_HI});
+  DenseSet<unsigned> RecalcRegs({AMDGPU::EXEC_LO, AMDGPU::EXEC_HI, AMDGPU::SCC});
   bool Changed = false;
 
   for (MachineBasicBlock &MBB : MF) {