diff options
Diffstat (limited to 'include/llvm/CodeGen')
| -rw-r--r-- | include/llvm/CodeGen/ScheduleDAG.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/ScheduleDAG.h b/include/llvm/CodeGen/ScheduleDAG.h index c62c3af232..786a5f4073 100644 --- a/include/llvm/CodeGen/ScheduleDAG.h +++ b/include/llvm/CodeGen/ScheduleDAG.h @@ -282,6 +282,16 @@ namespace llvm { isDepthCurrent(false), isHeightCurrent(false), Depth(0), Height(0), CopyDstRC(NULL), CopySrcRC(NULL) {} + /// SUnit - Construct a placeholder SUnit. + SUnit() + : Node(0), Instr(0), OrigNode(0), NodeNum(~0u), NodeQueueId(0), + Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0), NumSuccsLeft(0), + isTwoAddress(false), isCommutable(false), hasPhysRegDefs(false), + isPending(false), isAvailable(false), isScheduled(false), + isScheduleHigh(false), isCloned(false), + isDepthCurrent(false), isHeightCurrent(false), Depth(0), Height(0), + CopyDstRC(NULL), CopySrcRC(NULL) {} + /// setNode - Assign the representative SDNode for this SUnit. /// This may be used during pre-regalloc scheduling. void setNode(SDNode *N) { @@ -430,6 +440,8 @@ namespace llvm { std::vector<SUnit*> Sequence; // The schedule. Null SUnit*'s // represent noop instructions. std::vector<SUnit> SUnits; // The scheduling units. + SUnit EntrySU; // Special node for the region entry. + SUnit ExitSU; // Special node for the region exit. explicit ScheduleDAG(MachineFunction &mf); @@ -446,6 +458,9 @@ namespace llvm { MachineBasicBlock::iterator Begin, MachineBasicBlock::iterator End); + /// EmitSchedule - Insert MachineInstrs into the MachineBasicBlock + /// according to the order specified in Sequence. + /// virtual MachineBasicBlock *EmitSchedule() = 0; void dumpSchedule() const; |