248                                 Value *Var, Instruction *DefX,
1607 static PHINode *getRecurrenceVar(Value *VarX, Instruction *DefX,  in getRecurrenceVar()  argument
1611       (PhiX->getOperand(0) == DefX || PhiX->getOperand(1) == DefX))  in getRecurrenceVar()
1776                                       Instruction *&DefX) {  in detectShiftUntilZeroIdiom()  argument
1780   DefX = nullptr;  in detectShiftUntilZeroIdiom()
1788     DefX = dyn_cast<Instruction>(T);  in detectShiftUntilZeroIdiom()
1793   if (!DefX || !DefX->isShift())  in detectShiftUntilZeroIdiom()
1795   IntrinID = DefX->getOpcode() == Instruction::Shl ? Intrinsic::cttz :  in detectShiftUntilZeroIdiom()
1797   ConstantInt *Shft = dyn_cast<ConstantInt>(DefX->getOperand(1));  in detectShiftUntilZeroIdiom()
1800   VarX = DefX->getOperand(0);  in detectShiftUntilZeroIdiom()
1803   PHINode *PhiX = getRecurrenceVar(VarX, DefX, LoopEntry);  in detectShiftUntilZeroIdiom()
1811   if (DefX->getOpcode() == Instruction::AShr && !isKnownNonNegative(InitX, DL))  in detectShiftUntilZeroIdiom()
1854   Instruction *DefX = nullptr;  in recognizeAndInsertFFS()  local
1862                                  CntInst, CntPhi, DefX))  in recognizeAndInsertFFS()
1932   transformLoopToCountable(IntrinID, PH, CntInst, CntPhi, InitX, DefX,  in recognizeAndInsertFFS()
1933                            DefX->getDebugLoc(), ZeroCheck,  in recognizeAndInsertFFS()
2048     PHINode *CntPhi, Value *InitX, Instruction *DefX, const DebugLoc &DL,  in transformLoopToCountable()  argument
2064     if (DefX->getOpcode() == Instruction::AShr)  in transformLoopToCountable()
2066     else if (DefX->getOpcode() == Instruction::LShr)  in transformLoopToCountable()
2068     else if (DefX->getOpcode() == Instruction::Shl) // cttz  in transformLoopToCountable()