diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp index d1930b1a2c..7eac4d81bb 100644 --- a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp +++ b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp @@ -134,17 +134,17 @@ void ScheduleDAGFast::Schedule() { /// the AvailableQueue if the count reaches zero. Also update its cycle bound. void ScheduleDAGFast::ReleasePred(SUnit *SU, 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) { |