Cleanup: DAG building is specific to either SD or MI scheduling. Not part of the target interface.

llvm-svn: 152174

Author: atrick

llvm/include/llvm/CodeGen/ScheduleDAG.h

@@ -549,11 +549,6 @@ namespace llvm {
     ///
     void Run(MachineBasicBlock *bb, MachineBasicBlock::iterator insertPos);
 
-    /// BuildSchedGraph - Build SUnits and set up their Preds and Succs
-    /// to form the scheduling dependency graph.
-    ///
-    virtual void BuildSchedGraph(AliasAnalysis *AA) = 0;
-
     /// ComputeLatency - Compute node latency.
     ///
     virtual void ComputeLatency(SUnit *SU) = 0;

llvm/lib/CodeGen/ScheduleDAGInstrs.h

@@ -245,7 +245,7 @@ namespace llvm {
 
     /// BuildSchedGraph - Build SUnits from the MachineBasicBlock that we are
     /// input.
-    virtual void BuildSchedGraph(AliasAnalysis *AA);
+    void BuildSchedGraph(AliasAnalysis *AA);
 
     /// AddSchedBarrierDeps - Add dependencies from instructions in the current
     /// list of instructions being scheduled to scheduling barrier. We want to

llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h

@@ -79,7 +79,7 @@ namespace llvm {
     /// 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(AliasAnalysis *AA);
+    void BuildSchedGraph(AliasAnalysis *AA);
 
     /// InitVRegCycleFlag - Set isVRegCycle if this node's single use is
     /// CopyToReg and its only active data operands are CopyFromReg within a