diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineScheduler.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineScheduler.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp index 7da9b3a..1722bdd 100644 --- a/llvm/lib/CodeGen/MachineScheduler.cpp +++ b/llvm/lib/CodeGen/MachineScheduler.cpp @@ -3958,9 +3958,12 @@ bool PostGenericScheduler::tryCandidate(SchedCandidate &Cand, return TryCand.Reason != NoCand; // Keep clustered nodes together. - if (tryGreater(TryCand.SU == DAG->getNextClusterSucc(), - Cand.SU == DAG->getNextClusterSucc(), - TryCand, Cand, Cluster)) + const SUnit *CandNextClusterSU = + Cand.AtTop ? DAG->getNextClusterSucc() : DAG->getNextClusterPred(); + const SUnit *TryCandNextClusterSU = + TryCand.AtTop ? DAG->getNextClusterSucc() : DAG->getNextClusterPred(); + if (tryGreater(TryCand.SU == TryCandNextClusterSU, + Cand.SU == CandNextClusterSU, TryCand, Cand, Cluster)) return TryCand.Reason != NoCand; // Avoid critical resource consumption and balance the schedule. |