Initial hazard recognizer support in post-pass scheduling. This includes

a new toy hazard recognizier heuristic which attempts to direct the
scheduler to avoid clumping large groups of loads or stores too densely.

llvm-svn: 62291

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGList.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGList.cpp
index 1d11c37e343..41be25354d9 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGList.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGList.cpp
@@ -234,7 +234,7 @@ void ScheduleDAGList::ListScheduleTopDown() {
       // processors without pipeline interlocks and other cases.
       DOUT << "*** Emitting noop\n";
       HazardRec->EmitNoop();
-      Sequence.push_back(0);   // NULL SUnit* -> noop
+      Sequence.push_back(0);   // NULL here means noop
       ++NumNoops;
       ++CurCycle;
     }