Lines Matching defs:dead

294 /// aliasing registers.  The range should be empty, or contain only dead
301   // Create all values as dead defs before extending to uses. Note that roots
470                                  SmallVectorImpl<MachineInstr*> *dead) {
521   // Handle dead values.
522   bool CanSeparate = computeDeadValues(*li, dead);
528                                       SmallVectorImpl<MachineInstr*> *dead) {
551       // This is a dead PHI. Remove it.
556       // This is a dead def. Make sure the instruction knows.
561       if (dead && MI->allDefsAreDead()) {
562         LLVM_DEBUG(dbgs() << "All defs dead: " << Def << '\t' << *MI);
563         dead->push_back(MI);
620   // Remove dead PHI value numbers
629       // This is a dead PHI. Remove it.
1196       // OldIdx is not a dead def, and NewIdxDef is inside a new interval.
1225         // The last segment is undefined now, reuse it for a dead def.
1268       // There was no existing def at NewIdx. We need to create a dead def
1270       // a new segment at the place where we want to construct the dead def.
1306       // previous use or (dead-)def but no further than NewIdx.
1335       // If OldIdx was a dead def remove it.
1343         // Simply remove the dead def at OldIdx.
1353           // OldIdx is not a dead def and NewIdx is before predecessor start.
1409         // OldIdxVNI is a dead def that has been moved into the middle of
1411         // but the dead def is a write to a subreg that is dead at NewIdx.
1412         // The dead def may have been moved across other values
1419         // the point of the dead def, with the following segment getting
1429         // Aggressively remove all dead flags from the former dead definition.
1430         // Kill/dead flags shouldn't be used while live intervals exist; they
1437         // OldIdxVNI is a dead def. It may have been moved across other values
1443         // OldIdxVNI can be reused now to build a new dead def segment.
1562   // Fix up dead defs