/// so it would not cross the barrier that's being processed. Shrink wrap
/// (minimize) the live interval to the last uses.
bool PreAllocSplitting::SplitRegLiveInterval(LiveInterval *LI) {
- DEBUG(errs() << "Pre-alloc splitting " << LI->reg << " for " << *Barrier
+ DEBUG(dbgs() << "Pre-alloc splitting " << LI->reg << " for " << *Barrier
<< " result: ");
CurrLI = LI;
// If this would create a new join point, do not split.
if (DefMI && createsNewJoin(LR, DefMI->getParent(), Barrier->getParent())) {
- DEBUG(errs() << "FAILED (would create a new join point).\n");
+ DEBUG(dbgs() << "FAILED (would create a new join point).\n");
return false;
}
MachineBasicBlock::iterator RestorePt =
findRestorePoint(BarrierMBB, Barrier, LR->end, RefsInMBB);
if (RestorePt == BarrierMBB->end()) {
- DEBUG(errs() << "FAILED (could not find a suitable restore point).\n");
+ DEBUG(dbgs() << "FAILED (could not find a suitable restore point).\n");
return false;
}
if (DefMI && LIs->isReMaterializable(*LI, ValNo, DefMI))
if (Rematerialize(LI->reg, ValNo, DefMI, RestorePt, RefsInMBB)) {
- DEBUG(errs() << "success (remat).\n");
+ DEBUG(dbgs() << "success (remat).\n");
return true;
}
MachineBasicBlock::iterator SpillPt =
findSpillPoint(BarrierMBB, Barrier, NULL, RefsInMBB);
if (SpillPt == BarrierMBB->begin()) {
- DEBUG(errs() << "FAILED (could not find a suitable spill point).\n");
+ DEBUG(dbgs() << "FAILED (could not find a suitable spill point).\n");
return false; // No gap to insert spill.
}
// Add spill.
// If it's already split, just restore the value. There is no need to spill
// the def again.
if (!DefMI) {
- DEBUG(errs() << "FAILED (def is dead).\n");
+ DEBUG(dbgs() << "FAILED (def is dead).\n");
return false; // Def is dead. Do nothing.
}
SpillPt = findSpillPoint(BarrierMBB, Barrier, DefMI,
RefsInMBB);
if (SpillPt == DefMBB->begin()) {
- DEBUG(errs() << "FAILED (could not find a suitable spill point).\n");
+ DEBUG(dbgs() << "FAILED (could not find a suitable spill point).\n");
return false; // No gap to insert spill.
}
} else {
SpillPt = llvm::next(MachineBasicBlock::iterator(DefMI));
if (SpillPt == DefMBB->end()) {
- DEBUG(errs() << "FAILED (could not find a suitable spill point).\n");
+ DEBUG(dbgs() << "FAILED (could not find a suitable spill point).\n");
return false; // No gap to insert spill.
}
}
}
++NumSplits;
- DEBUG(errs() << "success.\n");
+ DEBUG(dbgs() << "success.\n");
return true;
}