193   bool padInstructionViaRelaxation(MCRelaxableFragment &RF,
197   bool padInstructionViaPrefix(MCRelaxableFragment &RF, MCCodeEmitter &Emitter,
200   bool padInstructionEncoding(MCRelaxableFragment &RF, MCCodeEmitter &Emitter,
774 static bool isFullyRelaxed(const MCRelaxableFragment &RF) {  in isFullyRelaxed()  argument
775   auto &Inst = RF.getInst();  in isFullyRelaxed()
776   auto &STI = *RF.getSubtargetInfo();  in isFullyRelaxed()
781 bool X86AsmBackend::padInstructionViaPrefix(MCRelaxableFragment &RF,  in padInstructionViaPrefix()  argument
784   if (!RF.getAllowAutoPadding())  in padInstructionViaPrefix()
790   if (!isFullyRelaxed(RF))  in padInstructionViaPrefix()
793   const unsigned OldSize = RF.getContents().size();  in padInstructionViaPrefix()
801     Emitter.emitPrefix(RF.getInst(), VecOS, STI);  in padInstructionViaPrefix()
819   const uint8_t Prefix = determinePaddingPrefix(RF.getInst());  in padInstructionViaPrefix()
823   Code.append(RF.getContents().begin(), RF.getContents().end());  in padInstructionViaPrefix()
824   RF.getContents() = Code;  in padInstructionViaPrefix()
827   for (auto &F : RF.getFixups()) {  in padInstructionViaPrefix()
835 bool X86AsmBackend::padInstructionViaRelaxation(MCRelaxableFragment &RF,  in padInstructionViaRelaxation()  argument
838   if (isFullyRelaxed(RF))  in padInstructionViaRelaxation()
843   MCInst Relaxed = RF.getInst();  in padInstructionViaRelaxation()
844   relaxInstruction(Relaxed, *RF.getSubtargetInfo());  in padInstructionViaRelaxation()
849   Emitter.encodeInstruction(Relaxed, VecOS, Fixups, *RF.getSubtargetInfo());  in padInstructionViaRelaxation()
850   const unsigned OldSize = RF.getContents().size();  in padInstructionViaRelaxation()
856   RF.setInst(Relaxed);  in padInstructionViaRelaxation()
857   RF.getContents() = Code;  in padInstructionViaRelaxation()
858   RF.getFixups() = Fixups;  in padInstructionViaRelaxation()
863 bool X86AsmBackend::padInstructionEncoding(MCRelaxableFragment &RF,  in padInstructionEncoding()  argument
868     Changed |= padInstructionViaRelaxation(RF, Emitter, RemainingSize);  in padInstructionEncoding()
870     Changed |= padInstructionViaPrefix(RF, Emitter, RemainingSize);  in padInstructionEncoding()
909         auto &RF = cast<MCRelaxableFragment>(*I);  in finishLayout()  local
910         Relaxable.push_back(&RF);  in finishLayout()
942         auto &RF = *Relaxable.pop_back_val();  in finishLayout()  local
946         if (padInstructionEncoding(RF, Asm.getEmitter(), RemainingSize))  in finishLayout()
947           FirstChangedFragment = &RF;  in finishLayout()
955         if (!isFullyRelaxed(RF))  in finishLayout()