Lines Matching defs:dead

310 /// aliasing registers.  The range should be empty, or contain only dead
317   // Create all values as dead defs before extending to uses. Note that roots
486                                  SmallVectorImpl<MachineInstr*> *dead) {
537   // Handle dead values.
538   bool CanSeparate = computeDeadValues(*li, dead);
544                                       SmallVectorImpl<MachineInstr*> *dead) {
567       // This is a dead PHI. Remove it.
572       // This is a dead def. Make sure the instruction knows.
577       if (dead && MI->allDefsAreDead()) {
578         LLVM_DEBUG(dbgs() << "All defs dead: " << Def << '\t' << *MI);
579         dead->push_back(MI);
636   // Remove dead PHI value numbers
645       // This is a dead PHI. Remove it.
1230       // OldIdx is not a dead def, and NewIdxDef is inside a new interval.
1259         // The last segment is undefined now, reuse it for a dead def.
1302       // There was no existing def at NewIdx. We need to create a dead def
1304       // a new segment at the place where we want to construct the dead def.
1341       // previous use or (dead-)def but no further than NewIdx.
1370       // If OldIdx was a dead def remove it.
1378         // Simply remove the dead def at OldIdx.
1388           // OldIdx is not a dead def and NewIdx is before predecessor start.
1444         // OldIdxVNI is a dead def that has been moved into the middle of
1446         // but the dead def is a write to a subreg that is dead at NewIdx.
1447         // The dead def may have been moved across other values
1454         // the point of the dead def, with the following segment getting
1464         // Aggressively remove all dead flags from the former dead definition.
1465         // Kill/dead flags shouldn't be used while live intervals exist; they
1472         // OldIdxVNI is a dead def. It may have been moved across other values
1478         // OldIdxVNI can be reused now to build a new dead def segment.
1598   // Fix up dead defs