Index: lib/Target/AMDGPU/SIInstrInfo.cpp
===================================================================
--- lib/Target/AMDGPU/SIInstrInfo.cpp
+++ lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -487,7 +487,7 @@
     Builder.addReg(RI.getSubReg(SrcReg, SubIdx));
 
     if (Idx == SubIndices.size() - 1)
-      Builder.addReg(SrcReg, RegState::Kill | RegState::Implicit);
+      Builder.addReg(SrcReg, getKillRegState(KillSrc) | RegState::Implicit);
 
     if (Idx == 0)
       Builder.addReg(DestReg, RegState::Define | RegState::Implicit);