lib/Analysis/DemandedBits.cpp

73     const APInt &AOut, APInt &AB, APInt &KnownZero, APInt &KnownOne,
75   unsigned BitWidth = AB.getBitWidth();
109         AB = AOut.byteSwap();
117           AB = APInt::getHighBitsSet(BitWidth,
127           AB = APInt::getLowBitsSet(BitWidth,
139     AB = APInt::getLowBitsSet(BitWidth, AOut.getActiveBits());
146         AB = AOut.lshr(ShiftAmt);
152           AB |= APInt::getHighBitsSet(BitWidth, ShiftAmt+1);
154           AB |= APInt::getHighBitsSet(BitWidth, ShiftAmt);
162         AB = AOut.shl(ShiftAmt);
167           AB |= APInt::getLowBitsSet(BitWidth, ShiftAmt);
175         AB = AOut.shl(ShiftAmt);
181           AB.setBit(BitWidth-1);
186           AB |= APInt::getLowBitsSet(BitWidth, ShiftAmt);
190     AB = AOut;
198       AB &= ~KnownZero2;
202       AB &= ~(KnownZero & ~KnownZero2);
206     AB = AOut;
214       AB &= ~KnownOne2;
218       AB &= ~(KnownOne & ~KnownOne2);
223     AB = AOut;
226     AB = AOut.zext(BitWidth);
229     AB = AOut.trunc(BitWidth);
232     AB = AOut.trunc(BitWidth);
239       AB.setBit(BitWidth-1);
243       AB = AOut;
323           APInt AB = APInt::getAllOnesValue(BitWidth);
326             AB = APInt(BitWidth, 0);
331             determineLiveOperandBits(UserI, I, OI.getOperandNo(), AOut, AB,
344           APInt ABNew = AB | ABPrev;