1 //===-- lib/CodeGen/MachineInstrBundle.cpp --------------------------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
34     bool runOnMachineFunction(MachineFunction &MF) override;
43 INITIALIZE_PASS(UnpackMachineBundles, "unpack-mi-bundles",
58       if (MI->isBundle()) {  in runOnMachineFunction()
59         while (++MII != MIE && MII->isBundledWithPred()) {  in runOnMachineFunction()
60           MII->unbundleFromPred();  in runOnMachineFunction()
61           for (MachineOperand &MO  : MII->operands()) {  in runOnMachineFunction()
66         MI->eraseFromParent();  in runOnMachineFunction()
93     bool runOnMachineFunction(MachineFunction &MF) override;
99 INITIALIZE_PASS(FinalizeMachineBundles, "finalize-mi-bundles",
112     if (MII->getDebugLoc())  in getDebugLoc()
113       return MII->getDebugLoc();  in getDebugLoc()
117 /// finalizeBundle - Finalize a machine instruction bundle which includes
134       BuildMI(MF, getDebugLoc(FirstMI, LastMI), TII->get(TargetOpcode::BUNDLE));  in finalizeBundle()
148     if (MII->isDebugInstr())  in finalizeBundle()
151     for (MachineOperand &MO : MII->operands()) {  in finalizeBundle()
181       Register Reg = MO->getReg();  in finalizeBundle()
187         if (MO->isDead()) {  in finalizeBundle()
191         // Re-defined inside the bundle, it's no longer killed.  in finalizeBundle()
193         if (!MO->isDead())  in finalizeBundle()
198       if (!MO->isDead() && Reg.isPhysical()) {  in finalizeBundle()
199         for (MCPhysReg SubReg : TRI->subregs(Reg)) {  in finalizeBundle()
229     if (MII->getFlag(MachineInstr::FrameSetup))  in finalizeBundle()
231     if (MII->getFlag(MachineInstr::FrameDestroy))  in finalizeBundle()
236 /// finalizeBundle - Same functionality as the previous finalizeBundle except
238 /// used in cases where bundles are pre-determined by marking instructions
246   while (LastMI != E && LastMI->isInsideBundle())  in finalizeBundle()
252 /// finalizeBundles - Finalize instruction bundles in the specified
261     assert(!MII->isInsideBundle() &&  in finalizeBundles()
265       if (!MII->isInsideBundle())  in finalizeBundles()
280   VirtRegInfo RI = {false, false, false};  in AnalyzeVirtRegInBundle()  local
288       Ops->push_back(std::make_pair(MO.getParent(), O.getOperandNo()));  in AnalyzeVirtRegInBundle()
292       RI.Reads = true;  in AnalyzeVirtRegInBundle()
294         RI.Tied = true;  in AnalyzeVirtRegInBundle()
299       RI.Writes = true;  in AnalyzeVirtRegInBundle()
300     else if (!RI.Tied &&  in AnalyzeVirtRegInBundle()
301              MO.getParent()->isRegTiedToDefOperand(O.getOperandNo()))  in AnalyzeVirtRegInBundle()
302       RI.Tied = true;  in AnalyzeVirtRegInBundle()
304   return RI;  in AnalyzeVirtRegInBundle()
353     if (!TRI->regsOverlap(MOReg, Reg))  in AnalyzePhysRegInBundle()
356     bool Covered = TRI->isSuperRegisterEq(Reg, MOReg);  in AnalyzePhysRegInBundle()