267   using HBS = HexagonBitSimplify;  typedef
1246       if (!HBS::getSubregMask(UR, B, W, MRI))  in computeUsedBits()
1282   bool GotBits = HBS::getUsedBits(Opc, OpN, T, Begin, HII);  in computeUsedBits()
1290     const TargetRegisterClass *RC = HBS::getFinalVRegClass(RR, MRI);  in computeUsedBits()
1312   if (!HBS::getSubregMask(RD, DB, DW, MRI))  in usedBitsEqual()
1315   if (!HBS::getSubregMask(RS, SB, SW, MRI))  in usedBitsEqual()
1360       if (!HBS::isTransparentCopy(RD, RS, MRI))  in processBlock()
1364       if (!HBS::getSubregMask(RS, BN, BW, MRI))  in processBlock()
1368       if (!usedBitsEqual(RD, RS) && !HBS::isEqual(DC, 0, SC, BN, BW))  in processBlock()
1373       const TargetRegisterClass *FRC = HBS::getFinalVRegClass(RD, MRI);  in processBlock()
1378       HBS::replaceSubWithSub(RD.Reg, RD.Sub, NewR, 0, MRI);  in processBlock()
1504     HBS::getInstrDefs(*I, Defs);  in processBlock()
1512     if (HBS::getConst(DRC, 0, DRC.width(), U)) {  in processBlock()
1518         HBS::replaceReg(DR, ImmReg, MRI);  in processBlock()
1578   auto *FRC = HBS::getFinalVRegClass(Inp, MRI);  in findMatch()
1580   if (!HBS::getSubregMask(Inp, B, W, MRI))  in findMatch()
1591       if (!HBS::isTransparentCopy(R, Inp, MRI))  in findMatch()
1593       if (!HBS::isEqual(InpRC, B, RC, 0, W))  in findMatch()
1607     if (HBS::isEqual(InpRC, B, RC, 0, W))  in findMatch()
1609     else if (HBS::isEqual(InpRC, B, RC, W, W))  in findMatch()
1614     if (HBS::isTransparentCopy(Out, Inp, MRI))  in findMatch()
1630     HBS::getInstrDefs(*I, Defs);  in processBlock()
1642       auto *FRC = HBS::getFinalVRegClass(R, MRI);  in processBlock()
1649         HBS::replaceReg(R, NewR, MRI);  in processBlock()
1663           auto *FRC = HBS::getFinalVRegClass(R, MRI);  in processBlock()
1671           HBS::replaceReg(R, NewR, MRI);  in processBlock()
1710       if (!HBS::isTransparentCopy(RD, RS, MRI))  in propagateRegCopy()
1713         Changed = HBS::replaceRegWithSub(RD.Reg, RS.Reg, RS.Sub, MRI);  in propagateRegCopy()
1715         Changed = HBS::replaceReg(RD.Reg, RS.Reg, MRI);  in propagateRegCopy()
1720       if (HBS::parseRegSequence(MI, SL, SH, MRI)) {  in propagateRegCopy()
1724         Changed  = HBS::replaceSubWithSub(RD.Reg, SubLo, SL.Reg, SL.Sub, MRI);  in propagateRegCopy()
1725         Changed |= HBS::replaceSubWithSub(RD.Reg, SubHi, SH.Reg, SH.Sub, MRI);  in propagateRegCopy()
1735       Changed  = HBS::replaceSubWithSub(RD.Reg, SubLo, RL.Reg, RL.Sub, MRI);  in propagateRegCopy()
1736       Changed |= HBS::replaceSubWithSub(RD.Reg, SubHi, RH.Reg, RH.Sub, MRI);  in propagateRegCopy()
1745       Changed = HBS::replaceSubWithSub(RD.Reg, Sub, RS.Reg, RS.Sub, MRI);  in propagateRegCopy()
1903   if (!HBS::getFinalVRegClass(RH, MRI))  in matchHalf()
1912   auto *RRC = HBS::getFinalVRegClass(R, MRI);  in validateReg()
2006   if (!HBS::getConst(RC, 0, RC.width(), U))  in genStoreImmediate()
2069   HBS::replaceSubWithSub(RD.Reg, RD.Sub, NewR, 0, MRI);  in genPackhl()
2080   if (!matchHalf(RD.Reg, RC, 0, L) || !HBS::isZero(RC, 16, 16))  in genExtractHalf()
2108   HBS::replaceSubWithSub(RD.Reg, RD.Sub, NewR, 0, MRI);  in genExtractHalf()
2140   HBS::replaceSubWithSub(RD.Reg, RD.Sub, NewR, 0, MRI);  in genCombineHalf()
2184     if (!HBS::getSubregMask(RS, BN, BW, MRI))  in genExtractLow()
2186     if (BW < W || !HBS::isEqual(RC, 0, SC, BN, W))  in genExtractLow()
2200     HBS::replaceSubWithSub(RD.Reg, RD.Sub, NewR, 0, MRI);  in genExtractLow()
2342       HBS::replaceRegWithSub(RD.Reg, NewR, Hexagon::isub_lo, MRI);  in genBitSplit()
2343       HBS::replaceRegWithSub(S,      NewR, Hexagon::isub_hi, MRI);  in genBitSplit()
2345       HBS::replaceRegWithSub(S,      NewR, Hexagon::isub_lo, MRI);  in genBitSplit()
2346       HBS::replaceRegWithSub(RD.Reg, NewR, Hexagon::isub_hi, MRI);  in genBitSplit()
2370   if (!BT.has(RS.Reg) || !HBS::getSubregMask(RS, F, W, MRI))  in simplifyTstbit()
2400       HBS::replaceReg(RD.Reg, NewR, MRI);  in simplifyTstbit()
2408     HBS::replaceReg(RD.Reg, NewR, MRI);  in simplifyTstbit()
2439   const TargetRegisterClass *FRC = HBS::getFinalVRegClass(RD, MRI);  in simplifyExtractLow()
2534       if (HBS::isEqual(RC, 0, SC, Off, Len))  in simplifyExtractLow()
2603     HBS::replaceReg(RD.Reg, NewR, MRI);  in simplifyExtractLow()
2621   const TargetRegisterClass *FRC = HBS::getFinalVRegClass(RD, MRI);  in simplifyRCmp0()
2638   if (!HBS::getSubregMask(SR, F, W, MRI))  in simplifyRCmp0()
2653     HBS::replaceReg(RD.Reg, NewR, MRI);  in simplifyRCmp0()
2720       HBS::replaceReg(RD.Reg, NewR, MRI);  in simplifyRCmp0()
2744     HBS::getInstrDefs(*MI, Defs);  in processBlock()
2765     const TargetRegisterClass *FRC = HBS::getFinalVRegClass(RD, MRI);  in processBlock()
2997   HBS::getInstrDefs(*MI, Defs);  in getDefReg()
3136   HBS::replaceReg(OldPhiR, RegMap[G.Out.Reg], *MRI);  in moveGroup()
3193     HBS::getInstrDefs(MI, Defs);  in processLoop()
3252     HBS::getInstrUses(*SI, Inputs);  in processLoop()
3259       HBS::getInstrDefs(*MI, Defs);  in processLoop()
3268       HBS::getInstrUses(*MI, Inputs);  in processLoop()