Cross Reference: /external/llvm/lib/CodeGen/DetectDeadLanes.cpp

Lines Matching defs:UsedLanes
55   LaneBitmask UsedLanes;
77   void addUsedLanesOnOperand(const MachineOperand &MO, LaneBitmask UsedLanes);
79   /// Given a bitmask \p UsedLanes for the used lanes on a def output of a
82   void transferUsedLanesStep(const MachineInstr &MI, LaneBitmask UsedLanes);
96   /// Given a mask \p UsedLanes used from the output of instruction \p MI
98   LaneBitmask transferUsedLanes(const MachineInstr &MI, LaneBitmask UsedLanes,
197                                             LaneBitmask UsedLanes) {
206     UsedLanes = TRI->composeSubRegIndexLaneMask(MOSubReg, UsedLanes);
207   UsedLanes &= MRI->getMaxLaneMaskForVReg(MOReg);
211   LaneBitmask PrevUsedLanes = MORegInfo.UsedLanes;
213   if ((UsedLanes & ~PrevUsedLanes) == 0)
216   // Set UsedLanes and remember instruction for further propagation.
217   MORegInfo.UsedLanes = PrevUsedLanes | UsedLanes;
223                                             LaneBitmask UsedLanes) {
227     LaneBitmask UsedOnMO = transferUsedLanes(MI, UsedLanes, MO);
233                                                LaneBitmask UsedLanes,
242     return UsedLanes;
246     return TRI->reverseComposeSubRegIndexLaneMask(SubIdx, UsedLanes);
251         TRI->reverseComposeSubRegIndexLaneMask(SubIdx, UsedLanes);
260       MO1UsedLanes = UsedLanes & ~TRI->getSubRegIndexLaneMask(SubIdx);
270     return TRI->composeSubRegIndexLaneMask(SubIdx, UsedLanes);
421   LaneBitmask UsedLanes = 0;
456     UsedLanes |= TRI->getSubRegIndexLaneMask(SubReg);
458   return UsedLanes;
465   return (RegInfo.DefinedLanes & RegInfo.UsedLanes & Mask) == 0;
484   LaneBitmask UsedLanes = transferUsedLanes(MI, DefRegInfo.UsedLanes, MO);
485   if (UsedLanes != 0)
505     Info.UsedLanes = determineInitialUsedLanes(Reg);
516     // Transfer UsedLanes to operands of DefMI (backwards dataflow).
519     transferUsedLanesStep(MI, Info.UsedLanes);
531              << " Used: " << PrintLaneMask(Info.UsedLanes)
549         if (MO.isDef() && !MO.isDead() && RegInfo.UsedLanes == 0) {