if (DefMI && LIs->isReMaterializable(*LI, ValNo, DefMI))
return false;
+ // If this would create a new join point, do not split.
+ if (DefMI && createsNewJoin(LR, DefMI->getParent(), Barrier->getParent()))
+ return false;
+
// Find all references in the barrier mbb.
SmallPtrSet<MachineInstr*, 4> RefsInMBB;
for (MachineRegisterInfo::reg_iterator I = MRI->reg_begin(CurrLI->reg),
Stack.push_back(std::make_pair(PredMBB, ++S));
continue;
} else
- Stack.push_back(std::make_pair(PredMBB, ++S));
+ Stack.push_back(std::make_pair(PredMBB, S+1));
MachineBasicBlock* MBB = *S;
Visited.insert(MBB);