Lines Matching defs:MBB

67 void ReachingDefAnalysis::enterBasicBlock(MachineBasicBlock *MBB) {
68   unsigned MBBNumber = MBB->getNumber();
76   // Set up LiveRegs to represent registers entering MBB.
82   if (MBB->pred_empty()) {
83     for (const auto &LI : MBB->liveins()) {
94     LLVM_DEBUG(dbgs() << printMBBReference(*MBB) << ": entry\n");
99   for (MachineBasicBlock *pred : MBB->predecessors()) {
119 void ReachingDefAnalysis::leaveBasicBlock(MachineBasicBlock *MBB) {
121   unsigned MBBNumber = MBB->getNumber();
124   // Save register clearances at end of MBB - used by enterBasicBlock().
179 void ReachingDefAnalysis::reprocessBasicBlock(MachineBasicBlock *MBB) {
180   unsigned MBBNumber = MBB->getNumber();
186     instructionsWithoutDebug(MBB->instr_begin(), MBB->instr_end());
191   for (MachineBasicBlock *pred : MBB->predecessors()) {
226   MachineBasicBlock *MBB = TraversedMBB.MBB;
227   LLVM_DEBUG(dbgs() << printMBBReference(*MBB)
232     // Reprocess MBB that is part of a loop.
233     reprocessBasicBlock(MBB);
237   enterBasicBlock(MBB);
239        instructionsWithoutDebug(MBB->instr_begin(), MBB->instr_end()))
241   leaveBasicBlock(MBB);
249   for (MachineBasicBlock &MBB : MF) {
250     for (MachineInstr &MI : MBB) {
389 MachineInstr *ReachingDefAnalysis::getInstFromId(MachineBasicBlock *MBB,
391   assert(static_cast<size_t>(MBB->getNumber()) <
394   assert(InstId < static_cast<int>(MBB->size()) &&
400   for (auto &MI : *MBB) {
421   MachineBasicBlock *MBB = Def->getParent();
423   while (++MI != MBB->end()) {
443 bool ReachingDefAnalysis::getLiveInUses(MachineBasicBlock *MBB, Register Reg,
446        instructionsWithoutDebug(MBB->instr_begin(), MBB->instr_end())) {
455   auto Last = MBB->getLastNonDebugInstr();
456   if (Last == MBB->end())
463   MachineBasicBlock *MBB = MI->getParent();
473     SmallVector<MachineBasicBlock *, 4> ToVisit(MBB->successors());
476       MachineBasicBlock *MBB = ToVisit.pop_back_val();
477       if (Visited.count(MBB) || !MBB->isLiveIn(Reg))
479       if (getLiveInUses(MBB, Reg, Uses))
480         llvm::append_range(ToVisit, MBB->successors());
481       Visited.insert(MBB);
493   for (auto *MBB : MI->getParent()->predecessors())
494     getLiveOuts(MBB, Reg, Defs);
497 void ReachingDefAnalysis::getLiveOuts(MachineBasicBlock *MBB, Register Reg,
500   getLiveOuts(MBB, Reg, Defs, VisitedBBs);
503 void ReachingDefAnalysis::getLiveOuts(MachineBasicBlock *MBB, Register Reg,
506   if (VisitedBBs.count(MBB))
509   VisitedBBs.insert(MBB);
511   LiveRegs.addLiveOuts(*MBB);
515   if (auto *Def = getLocalLiveOutMIDef(MBB, Reg))
518     for (auto *Pred : MBB->predecessors())
555   MachineBasicBlock *MBB = MI->getParent();
557   LiveRegs.addLiveOuts(*MBB);
566        instructionsWithoutDebug(MBB->instr_rbegin(), MBB->instr_rend())) {
576   MachineBasicBlock *MBB = MI->getParent();
577   auto Last = MBB->getLastNonDebugInstr();
578   if (Last != MBB->end() &&
582   if (auto *Def = getLocalLiveOutMIDef(MBB, Reg))
590   MachineBasicBlock *MBB = MI->getParent();
592   LiveRegs.addLiveOuts(*MBB);
596   auto Last = MBB->getLastNonDebugInstr();
598   if (Last != MBB->end() && getReachingDef(&*Last, Reg) != Def)
609 MachineInstr *ReachingDefAnalysis::getLocalLiveOutMIDef(MachineBasicBlock *MBB,
612   LiveRegs.addLiveOuts(*MBB);
616   auto Last = MBB->getLastNonDebugInstr();
617   if (Last == MBB->end())
632   return Def < 0 ? nullptr : getInstFromId(MBB, Def);
789   MachineBasicBlock *MBB = MI->getParent();
793     for (auto E = MBB->end(); I != E; ++I) {