Initialize SUnits before DAG building.

[oota-llvm.git] / lib / CodeGen / CriticalAntiDepBreaker.cpp

diff --git a/lib/CodeGen/CriticalAntiDepBreaker.cpp b/lib/CodeGen/CriticalAntiDepBreaker.cpp
index 5c325396dbefeb54ce39a351d68b244d30672104..0751229f4e04058ac2f7f261a283d509a66b1a78 100644 (file)
--- a/lib/CodeGen/CriticalAntiDepBreaker.cpp
+++ b/lib/CodeGen/CriticalAntiDepBreaker.cpp
@@ -427,6 +427,8 @@ BreakAntiDependencies(const std::vector<SUnit>& SUnits,
 
   // Keep a map of the MachineInstr*'s back to the SUnit representing them.
   // This is used for updating debug information.
+  //
+  // FIXME: Replace this with the existing map in ScheduleDAGInstrs::MISUnitMap
   DenseMap<MachineInstr*,const SUnit*> MISUnitMap;
 
   // Find the node at the bottom of the critical path.