lib/CodeGen/RegisterCoalescer.cpp

93     /// A LaneMask to remember on which subregister live ranges we need to call
163     /// LaneMask are split as necessary. @p LaneMask are the lanes that
167                            LaneBitmask LaneMask, CoalescerPair &CP);
172                           LaneBitmask LaneMask, const CoalescerPair &CP);
804       LaneBitmask AMask = SA.LaneMask;
806         LaneBitmask BMask = SB.LaneMask;
816           SB.LaneMask = BRest;
823           SB.LaneMask = Common;
1102       if ((SR.LaneMask & SrcMask) == 0)
1123       if ((SR.LaneMask & DstMask) == 0)
1145         if ((SR.LaneMask & UseMask) == 0)
1216           if ((S.LaneMask & Mask) == 0)
1436       if ((S.LaneMask & ShrinkMask) == 0)
1438       DEBUG(dbgs() << "Shrink LaneUses (Lane " << PrintLaneMask(S.LaneMask)
1635   /// The LaneMask that this liverange will occupy the coalesced register. May
1637   const LaneBitmask LaneMask;
1789   JoinVals(LiveRange &LR, unsigned Reg, unsigned SubIdx, LaneBitmask LaneMask,
1793     : LR(LR), Reg(Reg), SubIdx(SubIdx), LaneMask(LaneMask),
1872         LaneBitmask SMask = TRI->composeSubRegIndexLaneMask(SubIdx, S.LaneMask);
1873         if ((SMask & LaneMask) == 0)
2394         DEBUG(dbgs() << "\t\tPrune sublane " << PrintLaneMask(S.LaneMask)
2405         DEBUG(dbgs() << "\t\tDead uses at sublane " << PrintLaneMask(S.LaneMask)
2407         ShrinkMask |= S.LaneMask;
2471                                          LaneBitmask LaneMask,
2474   JoinVals RHSVals(RRange, CP.getSrcReg(), CP.getSrcIdx(), LaneMask,
2476   JoinVals LHSVals(LRange, CP.getDstReg(), CP.getDstIdx(), LaneMask,
2527                                           LaneBitmask LaneMask,
2531     LaneBitmask RMask = R.LaneMask;
2532     // LaneMask of subregisters common to subrange R and ToMerge.
2533     LaneBitmask Common = RMask & LaneMask;
2540     // LaneMask of subregisters contained in the R range but not in ToMerge,
2542     LaneBitmask LRest = RMask & ~LaneMask;
2545       R.LaneMask = LRest;
2551       R.LaneMask = Common;
2556     LaneMask &= ~RMask;
2559   if (LaneMask != 0) {
2560     DEBUG(dbgs() << "\t\tNew Lane " << PrintLaneMask(LaneMask) << '\n');
2561     LI.createSubRangeFrom(Allocator, LaneMask, ToMerge);
2604         LaneBitmask Mask = TRI->composeSubRegIndexLaneMask(DstIdx, R.LaneMask);
2605         R.LaneMask = Mask;
2620         LaneBitmask Mask = TRI->composeSubRegIndexLaneMask(SrcIdx, R.LaneMask);
2969             assert((S.LaneMask & ~MaxMask) == 0);