[llvm-commits] [llvm] r152173 - in /llvm/trunk: include/llvm/CodeGen/ScheduleDAG.h lib/CodeGen/ScheduleDAGInstrs.h

[Andrew Trick]

Author: atrick
Date: Tue Mar  6 18:18:08 2012
New Revision: 152173

URL: http://llvm.org/viewvc/llvm-project?rev=152173&view=rev
Log:
misched comments

Modified:
    llvm/trunk/include/llvm/CodeGen/ScheduleDAG.h
    llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.h

Modified: llvm/trunk/include/llvm/CodeGen/ScheduleDAG.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/ScheduleDAG.h?rev=152173&r1=152172&r2=152173&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/ScheduleDAG.h (original)
+++ llvm/trunk/include/llvm/CodeGen/ScheduleDAG.h Tue Mar  6 18:18:08 2012
@@ -8,7 +8,8 @@
 //===----------------------------------------------------------------------===//
 //
 // This file implements the ScheduleDAG class, which is used as the common
-// base class for instruction schedulers.
+// base class for instruction schedulers. This encapsulates the scheduling DAG,
+// which is shared between SelectionDAG and MachineInstr scheduling.
 //
 //===----------------------------------------------------------------------===//
 

Modified: llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.h?rev=152173&r1=152172&r2=152173&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.h (original)
+++ llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.h Tue Mar  6 18:18:08 2012
@@ -112,6 +112,8 @@
     /// Live Intervals provides reaching defs in preRA scheduling.
     LiveIntervals *LIS;
 
+    /// After calling BuildSchedGraph, each machine instruction in the current
+    /// scheduling region is mapped to an SUnit.
     DenseMap<MachineInstr*, SUnit*> MISUnitMap;
 
     /// UnitLatencies (misnamed) flag avoids computing def-use latencies, using