23   Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);  in commonShiftTransforms()  local
30   if (isa<Constant>(Op0))  in commonShiftTransforms()
36     if (Instruction *Res = FoldShiftByConstant(Op0, CUI, I))  in commonShiftTransforms()
302 Instruction *InstCombiner::FoldShiftByConstant(Value *Op0, ConstantInt *Op1,  in FoldShiftByConstant()  argument
310       CanEvaluateShifted(Op0, Op1->getZExtValue(), isLeftShift, *this)) {  in FoldShiftByConstant()
312               " to eliminate shift:\n  IN: " << *Op0 << "\n  SH: " << I <<"\n");  in FoldShiftByConstant()
315                  GetShiftedValue(Op0, Op1->getZExtValue(), isLeftShift, *this));  in FoldShiftByConstant()
321   uint32_t TypeBits = Op0->getType()->getScalarSizeInBits();  in FoldShiftByConstant()
328       return ReplaceInstUsesWith(I, Constant::getNullValue(Op0->getType()));  in FoldShiftByConstant()
335   if (BinaryOperator *BO = dyn_cast<BinaryOperator>(Op0))  in FoldShiftByConstant()
342   if (SelectInst *SI = dyn_cast<SelectInst>(Op0))  in FoldShiftByConstant()
345   if (isa<PHINode>(Op0))  in FoldShiftByConstant()
350   if (TruncInst *TI = dyn_cast<TruncInst>(Op0)) {  in FoldShiftByConstant()
393   if (Op0->hasOneUse()) {  in FoldShiftByConstant()
394     if (BinaryOperator *Op0BO = dyn_cast<BinaryOperator>(Op0)) {  in FoldShiftByConstant()
517   BinaryOperator *ShiftOp = dyn_cast<BinaryOperator>(Op0);  in FoldShiftByConstant()
666   Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);  in visitLShr()  local
671     if (IntrinsicInst *II = dyn_cast<IntrinsicInst>(Op0)) {  in visitLShr()
672       unsigned BitWidth = Op0->getType()->getScalarSizeInBits();  in visitLShr()
681         Constant *RHS = ConstantInt::getSigned(Op0->getType(), isCtPop ? -1:0);  in visitLShr()
689         MaskedValueIsZero(Op0,APInt::getLowBitsSet(Op1C->getBitWidth(),ShAmt))){  in visitLShr()
706   Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);  in visitAShr()  local
714     if (match(Op0, m_Shl(m_Value(X), m_Specific(Op1)))) {  in visitAShr()
717       if (cast<OverflowingBinaryOperator>(Op0)->hasNoSignedWrap())  in visitAShr()
735         MaskedValueIsZero(Op0,APInt::getLowBitsSet(Op1C->getBitWidth(),ShAmt))){  in visitAShr()
742   if (MaskedValueIsZero(Op0,  in visitAShr()
744     return BinaryOperator::CreateLShr(Op0, Op1);  in visitAShr()
747   unsigned NumSignBits = ComputeNumSignBits(Op0);  in visitAShr()
748   if (NumSignBits == Op0->getType()->getScalarSizeInBits())  in visitAShr()
749     return ReplaceInstUsesWith(I, Op0);  in visitAShr()