Cross Reference: /external/llvm/lib/CodeGen/MachineSSAUpdater.cpp

Lines Matching refs:PHI
51 /// updates.  ProtoValue is the value used to name PHI nodes.
110 /// InsertNewDef - Insert an empty PHI or IMPLICIT_DEF instruction which define
139 /// a block.  Because of this, we need to insert a new PHI node in SomeBB to
181   // If an identical PHI is already in BB, just reuse it.
186   // Otherwise, we do need a PHI: insert one now.
188   MachineInstrBuilder InsertedPHI = InsertNewDef(TargetOpcode::PHI, BB,
191   // Fill in all the predecessors of the PHI.
195   // See if the PHI node can be merged to a single value.  This can happen in
196   // loop cases when we get a PHI of itself and one other value.
205   DEBUG(dbgs() << "  Inserted PHI: " << *InsertedPHI << "\n");
220 /// RewriteUse - Rewrite a use of the symbolic value.  This handles PHI nodes,
249   /// Iterator for PHI operands.
252     MachineInstr *PHI;
257       : PHI(P), idx(1) {}
259       : PHI(P), idx(PHI->getNumOperands()) {}
264     unsigned getIncomingValue() { return PHI->getOperand(idx).getReg(); }
266       return PHI->getOperand(idx+1).getMBB();
269   static inline PHI_iterator PHI_begin(PhiT *PHI) { return PHI_iterator(PHI); }
270   static inline PHI_iterator PHI_end(PhiT *PHI) {
271     return PHI_iterator(PHI, true);
295   /// CreateEmptyPHI - Create a PHI instruction that defines a new register.
300     MachineInstr *PHI = InsertNewDef(TargetOpcode::PHI, BB, Loc,
303     return PHI->getOperand(0).getReg();
306   /// AddPHIOperand - Add the specified value as an operand of the PHI for
308   static void AddPHIOperand(MachineInstr *PHI, unsigned Val,
310     MachineInstrBuilder(*Pred->getParent(), PHI).addReg(Val).addMBB(Pred);
313   /// InstrIsPHI - Check if an instruction is a PHI.
322   /// is a PHI instruction.
327   /// ValueIsNewPHI - Like ValueIsPHI but also check if the PHI has no source
330     MachineInstr *PHI = ValueIsPHI(Val, Updater);
331     if (PHI && PHI->getNumOperands() <= 1)
332       return PHI;
336   /// GetPHIValue - For the specified PHI instruction, return the register
338   static unsigned GetPHIValue(MachineInstr *PHI) {
339     return PHI->getOperand(0).getReg();