876   int BitWidth = Op0KnownZero.getBitWidth();  in checkRippleForAdd()  local
878   Op0KnownZeroTemp.clearBit(BitWidth - 1);  in checkRippleForAdd()
879   int Op0ZeroPosition = BitWidth - Op0KnownZeroTemp.countLeadingZeros() - 1;  in checkRippleForAdd()
881   int Op1OnePosition = BitWidth - Op1MaybeOne.countLeadingZeros() - 1;  in checkRippleForAdd()
916   unsigned BitWidth = LHS->getType()->getScalarSizeInBits();  in WillNotOverflowSignedAdd()  local
917   APInt LHSKnownZero(BitWidth, 0);  in WillNotOverflowSignedAdd()
918   APInt LHSKnownOne(BitWidth, 0);  in WillNotOverflowSignedAdd()
921   APInt RHSKnownZero(BitWidth, 0);  in WillNotOverflowSignedAdd()
922   APInt RHSKnownOne(BitWidth, 0);  in WillNotOverflowSignedAdd()
927   if ((LHSKnownOne[BitWidth - 1] && RHSKnownZero[BitWidth - 1]) ||  in WillNotOverflowSignedAdd()
928       (LHSKnownZero[BitWidth - 1] && RHSKnownOne[BitWidth - 1]))  in WillNotOverflowSignedAdd()
953   unsigned BitWidth = LHS->getType()->getScalarSizeInBits();  in WillNotOverflowSignedSub()  local
954   APInt LHSKnownZero(BitWidth, 0);  in WillNotOverflowSignedSub()
955   APInt LHSKnownOne(BitWidth, 0);  in WillNotOverflowSignedSub()
958   APInt RHSKnownZero(BitWidth, 0);  in WillNotOverflowSignedSub()
959   APInt RHSKnownOne(BitWidth, 0);  in WillNotOverflowSignedSub()
964   if ((LHSKnownOne[BitWidth - 1] && RHSKnownOne[BitWidth - 1]) ||  in WillNotOverflowSignedSub()
965       (LHSKnownZero[BitWidth - 1] && RHSKnownZero[BitWidth - 1]))  in WillNotOverflowSignedSub()
1582       unsigned BitWidth = I.getType()->getScalarSizeInBits();  in visitSub()  local
1583       APInt KnownZero(BitWidth, 0);  in visitSub()
1584       APInt KnownOne(BitWidth, 0);  in visitSub()