538   auto NewInnerShift = [&](unsigned ShAmt) {  in foldShiftedShift()  argument
539     InnerShift->setOperand(1, ConstantInt::get(ShType, ShAmt));  in foldShiftedShift()
701       Constant *ShAmt = ConstantExpr::getZExt(Op1, SrcTy);  in FoldShiftByConstant()  local
703       Value *NSh = Builder.CreateBinOp(I.getOpcode(), TrOp, ShAmt, I.getName());  in FoldShiftByConstant()
717       MaskV = ConstantExpr::get(I.getOpcode(), MaskV, ShAmt);  in FoldShiftByConstant()
907     unsigned ShAmt = ShAmtAPInt->getZExtValue();  in visitShl()  local
914       if (ShAmt < SrcWidth &&  in visitShl()
915           MaskedValueIsZero(X, APInt::getHighBitsSet(SrcWidth, ShAmt), 0, &I))  in visitShl()
916         return new ZExtInst(Builder.CreateShl(X, ShAmt), Ty);  in visitShl()
921       APInt Mask(APInt::getHighBitsSet(BitWidth, BitWidth - ShAmt));  in visitShl()
929       if (ShrAmt < ShAmt) {  in visitShl()
931         Constant *ShiftDiff = ConstantInt::get(Ty, ShAmt - ShrAmt);  in visitShl()
937       if (ShrAmt > ShAmt) {  in visitShl()
939         Constant *ShiftDiff = ConstantInt::get(Ty, ShrAmt - ShAmt);  in visitShl()
950       if (ShrAmt < ShAmt) {  in visitShl()
952         Constant *ShiftDiff = ConstantInt::get(Ty, ShAmt - ShrAmt);  in visitShl()
957         APInt Mask(APInt::getHighBitsSet(BitWidth, BitWidth - ShAmt));  in visitShl()
960       if (ShrAmt > ShAmt) {  in visitShl()
962         Constant *ShiftDiff = ConstantInt::get(Ty, ShrAmt - ShAmt);  in visitShl()
968         APInt Mask(APInt::getHighBitsSet(BitWidth, BitWidth - ShAmt));  in visitShl()
974       unsigned AmtSum = ShAmt + ShOp1->getZExtValue();  in visitShl()
983         MaskedValueIsZero(Op0, APInt::getHighBitsSet(BitWidth, ShAmt), 0, &I)) {  in visitShl()
989     if (!I.hasNoSignedWrap() && ComputeNumSignBits(Op0, 0, &I) > ShAmt) {  in visitShl()
1047     unsigned ShAmt = ShAmtAPInt->getZExtValue();  in visitLShr()  local
1050     if (II && isPowerOf2_32(BitWidth) && Log2_32(BitWidth) == ShAmt &&  in visitLShr()
1066       if (ShOp1->ult(ShAmt)) {  in visitLShr()
1068         Constant *ShiftDiff = ConstantInt::get(Ty, ShAmt - ShlAmt);  in visitLShr()
1077         APInt Mask(APInt::getLowBitsSet(BitWidth, BitWidth - ShAmt));  in visitLShr()
1080       if (ShOp1->ugt(ShAmt)) {  in visitLShr()
1082         Constant *ShiftDiff = ConstantInt::get(Ty, ShlAmt - ShAmt);  in visitLShr()
1091         APInt Mask(APInt::getLowBitsSet(BitWidth, BitWidth - ShAmt));  in visitLShr()
1094       assert(*ShOp1 == ShAmt);  in visitLShr()
1096       APInt Mask(APInt::getLowBitsSet(BitWidth, BitWidth - ShAmt));  in visitLShr()
1102       assert(ShAmt < X->getType()->getScalarSizeInBits() &&  in visitLShr()
1105       Value *NewLShr = Builder.CreateLShr(X, ShAmt);  in visitLShr()
1113       if (ShAmt == BitWidth - 1) {  in visitLShr()
1126       if (ShAmt == BitWidth - SrcTyBitWidth && Op0->hasOneUse()) {  in visitLShr()
1128         unsigned NewShAmt = std::min(ShAmt, SrcTyBitWidth - 1);  in visitLShr()
1136     if (ShAmt == BitWidth - 1 &&  in visitLShr()
1141       unsigned AmtSum = ShAmt + ShOp1->getZExtValue();  in visitLShr()
1150         MaskedValueIsZero(Op0, APInt::getLowBitsSet(BitWidth, ShAmt), 0, &I)) {  in visitLShr()
1252     unsigned ShAmt = ShAmtAPInt->getZExtValue();  in visitAShr()  local
1259         ShAmt == BitWidth - X->getType()->getScalarSizeInBits())  in visitAShr()
1268       if (ShlAmt < ShAmt) {  in visitAShr()
1270         Constant *ShiftDiff = ConstantInt::get(Ty, ShAmt - ShlAmt);  in visitAShr()
1275       if (ShlAmt > ShAmt) {  in visitAShr()
1277         Constant *ShiftDiff = ConstantInt::get(Ty, ShlAmt - ShAmt);  in visitAShr()
1286       unsigned AmtSum = ShAmt + ShOp1->getZExtValue();  in visitAShr()
1297       ShAmt = std::min(ShAmt, SrcTy->getScalarSizeInBits() - 1);  in visitAShr()
1298       Value *NewSh = Builder.CreateAShr(X, ConstantInt::get(SrcTy, ShAmt));  in visitAShr()
1304     if (ShAmt == BitWidth - 1 &&  in visitAShr()
1310         MaskedValueIsZero(Op0, APInt::getLowBitsSet(BitWidth, ShAmt), 0, &I)) {  in visitAShr()