Index: lib/Target/AMDGPU/SIInstrInfo.cpp
===================================================================
--- lib/Target/AMDGPU/SIInstrInfo.cpp
+++ lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -1085,11 +1085,6 @@
     // correctly handled.
     if (RI.spillSGPRToVGPR())
       FrameInfo.setStackID(FrameIndex, TargetStackID::SGPRSpill);
-    if (ST.hasScalarStores()) {
-      // m0 is used for offset to scalar stores if used to spill.
-      Spill.addReg(AMDGPU::M0, RegState::ImplicitDefine | RegState::Dead);
-    }
-
     return;
   }
 
@@ -1211,12 +1206,6 @@
       .addMemOperand(MMO)
       .addReg(MFI->getScratchRSrcReg(), RegState::Implicit)
       .addReg(MFI->getStackPtrOffsetReg(), RegState::Implicit);
-
-    if (ST.hasScalarStores()) {
-      // m0 is used for offset to scalar stores if used to spill.
-      Spill.addReg(AMDGPU::M0, RegState::ImplicitDefine | RegState::Dead);
-    }
-
     return;
   }