Teach pre-regalloc scheduler to schedule loads from nearby addresses. It may improve cache locality. This is controlled by -cluster-loads for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94148 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h
index ebb31ac475..6b829b6106 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h
@@ -108,6 +108,10 @@ namespace llvm {
     virtual void getCustomGraphFeatures(GraphWriter<ScheduleDAG*> &GW) const;
 
   private:
+    /// ClusterNeighboringLoads - Cluster loads from "near" addresses into
+    /// combined SUnits.
+    void ClusterNeighboringLoads();
+
     /// BuildSchedUnits, AddSchedEdges - Helper functions for BuildSchedGraph.
     void BuildSchedUnits();
     void AddSchedEdges();