diff options
| -rw-r--r-- | include/llvm/CodeGen/ScheduleDAG.h | 3 | ||||
| -rw-r--r-- | lib/CodeGen/ScheduleDAGInstrs.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/ScheduleDAG.h b/include/llvm/CodeGen/ScheduleDAG.h index 72eadd9698..e75d936184 100644 --- a/include/llvm/CodeGen/ScheduleDAG.h +++ b/include/llvm/CodeGen/ScheduleDAG.h @@ -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. // //===----------------------------------------------------------------------===// diff --git a/lib/CodeGen/ScheduleDAGInstrs.h b/lib/CodeGen/ScheduleDAGInstrs.h index c7ffed96b7..e3aaffb630 100644 --- a/lib/CodeGen/ScheduleDAGInstrs.h +++ b/lib/CodeGen/ScheduleDAGInstrs.h @@ -112,6 +112,8 @@ namespace llvm { /// 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 |