Rename BuildSchedUnits to BuildSchedGraph, and refactor the

code in ScheduleDAGSDNodes' BuildSchedGraph into separate functions.

llvm-svn: 61376

3 files changed, 13 insertions, 8 deletions

diff --git a/llvm/include/llvm/CodeGen/ScheduleDAG.h b/llvm/include/llvm/CodeGen/ScheduleDAG.h
index b90e5254ffd..03d11e2d828 100644
--- a/llvm/include/llvm/CodeGen/ScheduleDAG.h
+++ b/llvm/include/llvm/CodeGen/ScheduleDAG.h
@@ -442,10 +442,10 @@ namespace llvm {
     ///
     void Run();
 
-    /// BuildSchedUnits - Build SUnits and set up their Preds and Succs
+    /// BuildSchedGraph - Build SUnits and set up their Preds and Succs
     /// to form the scheduling dependency graph.
     ///
-    virtual void BuildSchedUnits() = 0;
+    virtual void BuildSchedGraph() = 0;
 
     /// ComputeLatency - Compute node latency.
     ///
diff --git a/llvm/include/llvm/CodeGen/ScheduleDAGInstrs.h b/llvm/include/llvm/CodeGen/ScheduleDAGInstrs.h
index cfea3e08895..96d3f0f212a 100644
--- a/llvm/include/llvm/CodeGen/ScheduleDAGInstrs.h
+++ b/llvm/include/llvm/CodeGen/ScheduleDAGInstrs.h
@@ -45,9 +45,9 @@ namespace llvm {
       return &SUnits.back();
     }
 
-    /// BuildSchedUnits - Build SUnits from the MachineBasicBlock that we are
+    /// BuildSchedGraph - Build SUnits from the MachineBasicBlock that we are
     /// input.
-    virtual void BuildSchedUnits();
+    virtual void BuildSchedGraph();
 
     /// ComputeLatency - Compute node latency.
     ///
diff --git a/llvm/include/llvm/CodeGen/ScheduleDAGSDNodes.h b/llvm/include/llvm/CodeGen/ScheduleDAGSDNodes.h
index b3ec2807d77..d7f0ea49d48 100644
--- a/llvm/include/llvm/CodeGen/ScheduleDAGSDNodes.h
+++ b/llvm/include/llvm/CodeGen/ScheduleDAGSDNodes.h
@@ -118,10 +118,11 @@ namespace llvm {
     
     virtual SelectionDAG *getDAG() { return DAG; }
 
-    /// BuildSchedUnits - Build SUnits from the selection dag that we are input.
-    /// This SUnit graph is similar to the SelectionDAG, but represents flagged
-    /// together nodes with a single SUnit.
-    virtual void BuildSchedUnits();
+    /// BuildSchedGraph - Build the SUnit graph from the selection dag that we
+    /// are input.  This SUnit graph is similar to the SelectionDAG, but
+    /// excludes nodes that aren't interesting to scheduling, and represents
+    /// flagged together nodes with a single SUnit.
+    virtual void BuildSchedGraph();
 
     /// ComputeLatency - Compute node latency.
     ///
@@ -189,6 +190,10 @@ namespace llvm {
     void CreateVirtualRegisters(SDNode *Node, MachineInstr *MI,
                                 const TargetInstrDesc &II,
                                 DenseMap<SDValue, unsigned> &VRBaseMap);
+
+    /// BuildSchedUnits, AddSchedEdges - Helper functions for BuildSchedGraph.
+    void BuildSchedUnits();
+    void AddSchedEdges();
   };
 }