- // Scan the segments of LI.
- for (LiveInterval::const_iterator I = LI.begin(), E = LI.end(); I != E;
- ++I) {
- if (!Indexes->findLiveInMBBs(I->start, I->end, LiveIn))
- continue;
- for (unsigned i = 0, e = LiveIn.size(); i != e; ++i)
- if (!LiveIn[i]->isLiveIn(PhysReg))
- LiveIn[i]->addLiveIn(PhysReg);
- LiveIn.clear();
+ if (LI.hasSubRanges()) {
+ for (LiveInterval::SubRange &S : LI.subranges()) {
+ for (const auto &Seg : S.segments) {
+ if (!Indexes->findLiveInMBBs(Seg.start, Seg.end, LiveIn))
+ continue;
+ for (MCSubRegIndexIterator SR(PhysReg, TRI); SR.isValid(); ++SR) {
+ unsigned SubReg = SR.getSubReg();
+ unsigned SubRegIndex = SR.getSubRegIndex();
+ unsigned SubRegLaneMask = TRI->getSubRegIndexLaneMask(SubRegIndex);
+ if ((SubRegLaneMask & S.LaneMask) == 0)
+ continue;
+ for (unsigned i = 0, e = LiveIn.size(); i != e; ++i) {
+ if (!LiveIn[i]->isLiveIn(SubReg))
+ LiveIn[i]->addLiveIn(SubReg);
+ }
+ }
+ LiveIn.clear();
+ }
+ }
+ } else {
+ // Scan the segments of LI.
+ for (const auto &Seg : LI.segments) {
+ if (!Indexes->findLiveInMBBs(Seg.start, Seg.end, LiveIn))
+ continue;
+ for (unsigned i = 0, e = LiveIn.size(); i != e; ++i)
+ if (!LiveIn[i]->isLiveIn(PhysReg))
+ LiveIn[i]->addLiveIn(PhysReg);
+ LiveIn.clear();
+ }