Do not completely skip subrange info for a zero sized array.

[oota-llvm.git] / lib / CodeGen / ScheduleDAGInstrs.h

diff --git a/lib/CodeGen/ScheduleDAGInstrs.h b/lib/CodeGen/ScheduleDAGInstrs.h
index 713534ba767af3a2d8993ad0af4df399ad849f5a..00d6268d1a14a327e548b48bba97bb035b17a83d 100644 (file)
--- a/lib/CodeGen/ScheduleDAGInstrs.h
+++ b/lib/CodeGen/ScheduleDAGInstrs.h
@@ -120,6 +120,12 @@ namespace llvm {
     SmallSet<unsigned, 8> LoopLiveInRegs;
 
   public:
+    MachineBasicBlock *BB;                // Current basic block
+    MachineBasicBlock::iterator Begin;    // The beginning of the range to
+                                          // be scheduled. The range extends
+                                          // to InsertPos.
+    unsigned InsertPosIndex;              // The index in BB of InsertPos.
+
     explicit ScheduleDAGInstrs(MachineFunction &mf,
                                const MachineLoopInfo &mli,
                                const MachineDominatorTree &mdt);
@@ -139,6 +145,13 @@ namespace llvm {
       return &SUnits.back();
     }
 
+    /// Run - perform scheduling.
+    ///
+    void Run(MachineBasicBlock *bb,
+             MachineBasicBlock::iterator begin,
+             MachineBasicBlock::iterator end,
+             unsigned endindex);
+
     /// BuildSchedGraph - Build SUnits from the MachineBasicBlock that we are
     /// input.
     virtual void BuildSchedGraph();