diff options
Diffstat (limited to 'lib/CodeGen/MachineScheduler.cpp')
| -rw-r--r-- | lib/CodeGen/MachineScheduler.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp index adf9a57dde..513d8a9268 100644 --- a/lib/CodeGen/MachineScheduler.cpp +++ b/lib/CodeGen/MachineScheduler.cpp @@ -587,17 +587,19 @@ void ScheduleDAGMI::findRootsAndBiasEdges(SmallVectorImpl<SUnit*> &TopRoots, for (std::vector<SUnit>::iterator I = SUnits.begin(), E = SUnits.end(); I != E; ++I) { SUnit *SU = &(*I); + assert(!SU->isBoundaryNode() && "Boundary node should not be in SUnits"); // Order predecessors so DFSResult follows the critical path. SU->biasCriticalPath(); // A SUnit is ready to top schedule if it has no predecessors. - if (!I->NumPredsLeft && SU != &EntrySU) + if (!I->NumPredsLeft) TopRoots.push_back(SU); // A SUnit is ready to bottom schedule if it has no successors. - if (!I->NumSuccsLeft && SU != &ExitSU) + if (!I->NumSuccsLeft) BotRoots.push_back(SU); } + ExitSU.biasCriticalPath(); } /// Identify DAG roots and setup scheduler queues. |