70   unsigned ScratchWaveOffsetReg = MFI->getScratchWaveOffsetReg();  in emitFlatScratchInit()  local
76       .addReg(ScratchWaveOffsetReg);  in emitFlatScratchInit()
92     .addReg(ScratchWaveOffsetReg);  in emitFlatScratchInit()
158   unsigned ScratchWaveOffsetReg = MFI->getScratchWaveOffsetReg();  in getReservedPrivateSegmentWaveByteOffsetReg()  local
161   if (ScratchWaveOffsetReg == AMDGPU::NoRegister ||  in getReservedPrivateSegmentWaveByteOffsetReg()
162       !MRI.isPhysRegUsed(ScratchWaveOffsetReg)) {  in getReservedPrivateSegmentWaveByteOffsetReg()
169     return std::make_pair(ScratchWaveOffsetReg, SPReg);  in getReservedPrivateSegmentWaveByteOffsetReg()
175     return std::make_pair(ScratchWaveOffsetReg, SPReg);  in getReservedPrivateSegmentWaveByteOffsetReg()
196     return std::make_pair(ScratchWaveOffsetReg, SPReg);  in getReservedPrivateSegmentWaveByteOffsetReg()
199     ScratchWaveOffsetReg != TRI->reservedPrivateSegmentWaveByteOffsetReg(MF);  in getReservedPrivateSegmentWaveByteOffsetReg()
208         MRI.replaceRegWith(ScratchWaveOffsetReg, Reg);  in getReservedPrivateSegmentWaveByteOffsetReg()
210         ScratchWaveOffsetReg = Reg;  in getReservedPrivateSegmentWaveByteOffsetReg()
216   return std::make_pair(ScratchWaveOffsetReg, SPReg);  in getReservedPrivateSegmentWaveByteOffsetReg()
275   unsigned ScratchWaveOffsetReg;  in emitEntryFunctionPrologue()  local
276   std::tie(ScratchWaveOffsetReg, SPReg)  in emitEntryFunctionPrologue()
282   if (ScratchWaveOffsetReg == AMDGPU::NoRegister) {  in emitEntryFunctionPrologue()
297   bool OffsetRegUsed = MRI.isPhysRegUsed(ScratchWaveOffsetReg);  in emitEntryFunctionPrologue()
322       OtherBB.addLiveIn(ScratchWaveOffsetReg);  in emitEntryFunctionPrologue()
343                                               ScratchWaveOffsetReg);  in emitEntryFunctionPrologue()
350       PreloadedScratchWaveOffsetReg != ScratchWaveOffsetReg) {  in emitEntryFunctionPrologue()
351     BuildMI(MBB, I, DL, TII->get(AMDGPU::COPY), ScratchWaveOffsetReg)  in emitEntryFunctionPrologue()
353               MRI.isPhysRegUsed(ScratchWaveOffsetReg) ? 0 : RegState::Kill);  in emitEntryFunctionPrologue()