diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineScheduler.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineScheduler.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp index 41e161f71e5..72b7ad47e09 100644 --- a/llvm/lib/CodeGen/MachineScheduler.cpp +++ b/llvm/lib/CodeGen/MachineScheduler.cpp @@ -3233,6 +3233,12 @@ void PostGenericScheduler::tryCandidate(SchedCandidate &Cand, Top.getLatencyStallCycles(Cand.SU), TryCand, Cand, Stall)) return; + // Keep clustered nodes together. + if (tryGreater(TryCand.SU == DAG->getNextClusterSucc(), + Cand.SU == DAG->getNextClusterSucc(), + TryCand, Cand, Cluster)) + return; + // Avoid critical resource consumption and balance the schedule. if (tryLess(TryCand.ResDelta.CritResources, Cand.ResDelta.CritResources, TryCand, Cand, ResourceReduce)) |
