diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp index bd6e04805f..cd91b840d0 100644 --- a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp +++ b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp @@ -197,17 +197,17 @@ void ScheduleDAGRRList::Schedule() { /// the AvailableQueue if the count reaches zero. Also update its cycle bound. void ScheduleDAGRRList::ReleasePred(SUnit *SU, const SDep *PredEdge) { SUnit *PredSU = PredEdge->getSUnit(); - --PredSU->NumSuccsLeft; - + #ifndef NDEBUG - if (PredSU->NumSuccsLeft < 0) { + if (PredSU->NumSuccsLeft == 0) { errs() << "*** Scheduling failed! ***\n"; PredSU->dump(this); errs() << " has been released too many times!\n"; llvm_unreachable(0); } #endif - + --PredSU->NumSuccsLeft; + // If all the node's successors are scheduled, this node is ready // to be scheduled. Ignore the special EntrySU node. if (PredSU->NumSuccsLeft == 0 && PredSU != &EntrySU) { |