When scheduling a block in parts, keep track of the overall

instruction index across each part. Instruction indices are used
to make live range queries, and live ranges can extend beyond
scheduling region boundaries.

Refactor the ScheduleDAGSDNodes class some more so that it
doesn't have to worry about this additional information.

llvm-svn: 64288

1 files changed, 6 insertions, 6 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index f8d79ce3872..ed6e4fbe8c0 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -137,8 +137,8 @@ namespace llvm {
   //===--------------------------------------------------------------------===//
   /// createDefaultScheduler - This creates an instruction scheduler appropriate
   /// for the target.
-  ScheduleDAG* createDefaultScheduler(SelectionDAGISel *IS,
-                                      bool Fast) {
+  ScheduleDAGSDNodes* createDefaultScheduler(SelectionDAGISel *IS,
+                                             bool Fast) {
     const TargetLowering &TLI = IS->getTargetLowering();
 
     if (Fast)
@@ -662,12 +662,12 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
   if (ViewSchedDAGs) CurDAG->viewGraph("scheduler input for " + BlockName);
 
   // Schedule machine code.
-  ScheduleDAG *Scheduler = CreateScheduler();
+  ScheduleDAGSDNodes *Scheduler = CreateScheduler();
   if (TimePassesIsEnabled) {
     NamedRegionTimer T("Instruction Scheduling", GroupName);
-    Scheduler->Run(CurDAG, BB, BB->end(), BB->end());
+    Scheduler->Run(CurDAG, BB, BB->end());
   } else {
-    Scheduler->Run(CurDAG, BB, BB->end(), BB->end());
+    Scheduler->Run(CurDAG, BB, BB->end());
   }
 
   if (ViewSUnitDAGs) Scheduler->viewGraph();
@@ -1068,7 +1068,7 @@ SelectionDAGISel::FinishBasicBlock() {
 /// via the SchedulerRegistry, use it, otherwise select the
 /// one preferred by the target.
 ///
-ScheduleDAG *SelectionDAGISel::CreateScheduler() {
+ScheduleDAGSDNodes *SelectionDAGISel::CreateScheduler() {
   RegisterScheduler::FunctionPassCtor Ctor = RegisterScheduler::getDefault();
   
   if (!Ctor) {