#define LLVM_CODEGEN_SCHEDULEDAG_H
#include "llvm/CodeGen/MachineBasicBlock.h"
+#include "llvm/Target/TargetMachine.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/GraphTraits.h"
class SUnit;
class MachineConstantPool;
class MachineFunction;
- class MachineModuleInfo;
class MachineRegisterInfo;
class MachineInstr;
class TargetRegisterInfo;
class SDNode;
class TargetInstrInfo;
class TargetInstrDesc;
- class TargetLowering;
class TargetMachine;
class TargetRegisterClass;
template<class Graph> class GraphWriter;
typedef SmallVector<SDep, 4>::iterator succ_iterator;
typedef SmallVector<SDep, 4>::const_iterator const_pred_iterator;
typedef SmallVector<SDep, 4>::const_iterator const_succ_iterator;
-
+
unsigned NodeNum; // Entry # of node in the node vector.
unsigned NodeQueueId; // Queue id of node.
unsigned short Latency; // Node latency.
bool isScheduled : 1; // True once scheduled.
bool isScheduleHigh : 1; // True if preferable to schedule high.
bool isCloned : 1; // True if this node has been cloned.
+ Sched::Preference SchedulingPref; // Scheduling preference.
+
+ SmallVector<MachineInstr*, 4> DbgInstrList; // dbg_values referencing this.
private:
bool isDepthCurrent : 1; // True if Depth is current.
bool isHeightCurrent : 1; // True if Height is current.
/// SUnit - Construct an SUnit for pre-regalloc scheduling to represent
/// an SDNode and any nodes flagged to it.
SUnit(SDNode *node, unsigned nodenum)
- : Node(node), Instr(0), OrigNode(0), NodeNum(nodenum), NodeQueueId(0),
- Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0), NumSuccsLeft(0),
- isTwoAddress(false), isCommutable(false), hasPhysRegDefs(false),
- hasPhysRegClobbers(false),
+ : Node(node), Instr(0), OrigNode(0), NodeNum(nodenum),
+ NodeQueueId(0), Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0),
+ NumSuccsLeft(0), isTwoAddress(false), isCommutable(false),
+ hasPhysRegDefs(false), hasPhysRegClobbers(false),
isPending(false), isAvailable(false), isScheduled(false),
isScheduleHigh(false), isCloned(false),
+ SchedulingPref(Sched::None),
isDepthCurrent(false), isHeightCurrent(false), Depth(0), Height(0),
CopyDstRC(NULL), CopySrcRC(NULL) {}
/// SUnit - Construct an SUnit for post-regalloc scheduling to represent
/// a MachineInstr.
SUnit(MachineInstr *instr, unsigned nodenum)
- : Node(0), Instr(instr), OrigNode(0), NodeNum(nodenum), NodeQueueId(0),
- Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0), NumSuccsLeft(0),
- isTwoAddress(false), isCommutable(false), hasPhysRegDefs(false),
- hasPhysRegClobbers(false),
+ : Node(0), Instr(instr), OrigNode(0), NodeNum(nodenum),
+ NodeQueueId(0), Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0),
+ NumSuccsLeft(0), isTwoAddress(false), isCommutable(false),
+ hasPhysRegDefs(false), hasPhysRegClobbers(false),
isPending(false), isAvailable(false), isScheduled(false),
isScheduleHigh(false), isCloned(false),
+ SchedulingPref(Sched::None),
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),
- hasPhysRegClobbers(false),
+ : 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), hasPhysRegClobbers(false),
isPending(false), isAvailable(false), isScheduled(false),
isScheduleHigh(false), isCloned(false),
+ SchedulingPref(Sched::None),
isDepthCurrent(false), isHeightCurrent(false), Depth(0), Height(0),
CopyDstRC(NULL), CopySrcRC(NULL) {}
void removePred(const SDep &D);
/// getDepth - Return the depth of this node, which is the length of the
- /// maximum path up to any node with has no predecessors. If IgnoreAntiDep
- /// is true, ignore anti-dependence edges.
- unsigned getDepth(bool IgnoreAntiDep=false) const {
+ /// maximum path up to any node with has no predecessors.
+ unsigned getDepth() const {
if (!isDepthCurrent)
- const_cast<SUnit *>(this)->ComputeDepth(IgnoreAntiDep);
+ const_cast<SUnit *>(this)->ComputeDepth();
return Depth;
}
/// getHeight - Return the height of this node, which is the length of the
- /// maximum path down to any node with has no successors. If IgnoreAntiDep
- /// is true, ignore anti-dependence edges.
- unsigned getHeight(bool IgnoreAntiDep=false) const {
+ /// maximum path down to any node with has no successors.
+ unsigned getHeight() const {
if (!isHeightCurrent)
- const_cast<SUnit *>(this)->ComputeHeight(IgnoreAntiDep);
+ const_cast<SUnit *>(this)->ComputeHeight();
return Height;
}
/// setDepthToAtLeast - If NewDepth is greater than this node's
/// depth value, set it to be the new depth value. This also
- /// recursively marks successor nodes dirty. If IgnoreAntiDep is
- /// true, ignore anti-dependence edges.
- void setDepthToAtLeast(unsigned NewDepth, bool IgnoreAntiDep=false);
+ /// recursively marks successor nodes dirty.
+ void setDepthToAtLeast(unsigned NewDepth);
/// setDepthToAtLeast - If NewDepth is greater than this node's
/// depth value, set it to be the new height value. This also
- /// recursively marks predecessor nodes dirty. If IgnoreAntiDep is
- /// true, ignore anti-dependence edges.
- void setHeightToAtLeast(unsigned NewHeight, bool IgnoreAntiDep=false);
+ /// recursively marks predecessor nodes dirty.
+ void setHeightToAtLeast(unsigned NewHeight);
/// setDepthDirty - Set a flag in this node to indicate that its
/// stored Depth value will require recomputation the next time
return true;
return false;
}
-
+
void dump(const ScheduleDAG *G) const;
void dumpAll(const ScheduleDAG *G) const;
void print(raw_ostream &O, const ScheduleDAG *G) const;
private:
- void ComputeDepth(bool IgnoreAntiDep);
- void ComputeHeight(bool IgnoreAntiDep);
+ void ComputeDepth();
+ void ComputeHeight();
};
//===--------------------------------------------------------------------===//
/// implementation to decide.
///
class SchedulingPriorityQueue {
+ unsigned CurCycle;
public:
+ SchedulingPriorityQueue() : CurCycle(0) {}
virtual ~SchedulingPriorityQueue() {}
virtual void initNodes(std::vector<SUnit> &SUnits) = 0;
virtual void updateNode(const SUnit *SU) = 0;
virtual void releaseState() = 0;
- virtual unsigned size() const = 0;
virtual bool empty() const = 0;
virtual void push(SUnit *U) = 0;
- virtual void push_all(const std::vector<SUnit *> &Nodes) = 0;
+ void push_all(const std::vector<SUnit *> &Nodes) {
+ for (std::vector<SUnit *>::const_iterator I = Nodes.begin(),
+ E = Nodes.end(); I != E; ++I)
+ push(*I);
+ }
+
virtual SUnit *pop() = 0;
virtual void remove(SUnit *SU) = 0;
virtual void ScheduledNode(SUnit *) {}
virtual void UnscheduledNode(SUnit *) {}
+
+ void setCurCycle(unsigned Cycle) {
+ CurCycle = Cycle;
+ }
+
+ unsigned getCurCycle() const {
+ return CurCycle;
+ }
};
class ScheduleDAG {
const TargetMachine &TM; // Target processor
const TargetInstrInfo *TII; // Target instruction information
const TargetRegisterInfo *TRI; // Target processor register info
- const TargetLowering *TLI; // Target lowering info
MachineFunction &MF; // Machine function
MachineRegisterInfo &MRI; // Virtual/real register map
- MachineConstantPool *ConstPool; // Target constant pool
std::vector<SUnit*> Sequence; // The schedule. Null SUnit*'s
// represent noop instructions.
std::vector<SUnit> SUnits; // The scheduling units.
/// EmitSchedule - Insert MachineInstrs into the MachineBasicBlock
/// according to the order specified in Sequence.
///
- virtual MachineBasicBlock*
- EmitSchedule(DenseMap<MachineBasicBlock*, MachineBasicBlock*>*) = 0;
+ virtual MachineBasicBlock *EmitSchedule() = 0;
void dumpSchedule() const;
projects / oota-llvm.git / blobdiff