65 bool MachineSSAUpdater::HasValueForBlock(MachineBasicBlock *BB) const {  in HasValueForBlock()
66   return getAvailableVals(AV).count(BB);  in HasValueForBlock()
71 void MachineSSAUpdater::AddAvailableValue(MachineBasicBlock *BB, Register V) {  in AddAvailableValue()  argument
72   getAvailableVals(AV)[BB] = V;  in AddAvailableValue()
77 Register MachineSSAUpdater::GetValueAtEndOfBlock(MachineBasicBlock *BB) {  in GetValueAtEndOfBlock()  argument
78   return GetValueAtEndOfBlockInternal(BB);  in GetValueAtEndOfBlock()
82 Register LookForIdenticalPHI(MachineBasicBlock *BB,  in LookForIdenticalPHI()  argument
84   if (BB->empty())  in LookForIdenticalPHI()
87   MachineBasicBlock::iterator I = BB->begin();  in LookForIdenticalPHI()
94   while (I != BB->end() && I->isPHI()) {  in LookForIdenticalPHI()
114 static MachineInstrBuilder InsertNewDef(unsigned Opcode, MachineBasicBlock *BB,  in InsertNewDef()  argument
120   return BuildMI(*BB, I, DebugLoc(), TII->get(Opcode), NewVR);  in InsertNewDef()
130 /// 'use' in BB.  Consider code like this:
143 Register MachineSSAUpdater::GetValueInMiddleOfBlock(MachineBasicBlock *BB,  in GetValueInMiddleOfBlock()  argument
147   if (!HasValueForBlock(BB))  in GetValueInMiddleOfBlock()
148     return GetValueAtEndOfBlockInternal(BB, ExistingValueOnly);  in GetValueInMiddleOfBlock()
151   if (BB->pred_empty()) {  in GetValueInMiddleOfBlock()
157         InsertNewDef(TargetOpcode::IMPLICIT_DEF, BB, BB->getFirstTerminator(),  in GetValueInMiddleOfBlock()
168   for (MachineBasicBlock *PredBB : BB->predecessors()) {  in GetValueInMiddleOfBlock()
184   // If an identical PHI is already in BB, just reuse it.  in GetValueInMiddleOfBlock()
185   Register DupPHI = LookForIdenticalPHI(BB, PredValues);  in GetValueInMiddleOfBlock()
194   MachineBasicBlock::iterator Loc = BB->empty() ? BB->end() : BB->begin();  in GetValueInMiddleOfBlock()
196       InsertNewDef(TargetOpcode::PHI, BB, Loc, RegAttrs, MRI, TII);  in GetValueInMiddleOfBlock()
270   static BlkSucc_iterator BlkSucc_begin(BlkT *BB) { return BB->succ_begin(); }  in BlkSucc_begin()  argument
271   static BlkSucc_iterator BlkSucc_end(BlkT *BB) { return BB->succ_end(); }  in BlkSucc_end()  argument
302   /// FindPredecessorBlocks - Put the predecessors of BB into the Preds
304   static void FindPredecessorBlocks(MachineBasicBlock *BB,  in FindPredecessorBlocks()  argument
306     append_range(*Preds, BB->predecessors());  in FindPredecessorBlocks()
311   static Register GetPoisonVal(MachineBasicBlock *BB,  in GetPoisonVal()  argument
315         InsertNewDef(TargetOpcode::IMPLICIT_DEF, BB, BB->getFirstNonPHI(),  in GetPoisonVal()
322   static Register CreateEmptyPHI(MachineBasicBlock *BB, unsigned NumPreds,  in CreateEmptyPHI()  argument
324     MachineBasicBlock::iterator Loc = BB->empty() ? BB->end() : BB->begin();  in CreateEmptyPHI()
326         InsertNewDef(TargetOpcode::PHI, BB, Loc, Updater->RegAttrs,  in CreateEmptyPHI()
370 /// for the specified BB and if so, return it.  If not, construct SSA form by
374 MachineSSAUpdater::GetValueAtEndOfBlockInternal(MachineBasicBlock *BB,  in GetValueAtEndOfBlockInternal()  argument
377   Register ExistingVal = AvailableVals.lookup(BB);  in GetValueAtEndOfBlockInternal()
382   return Impl.GetValue(BB);  in GetValueAtEndOfBlockInternal()