#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/ScheduleDAG.h"
#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/ADT/SmallSet.h"
-#include "llvm/ADT/SmallVector.h"
-#include <map>
+#include <vector>
namespace llvm {
/// anti-dependencies.
class AntiDepBreaker {
public:
- typedef SmallSet<unsigned, 4> AntiDepRegSet;
- typedef SmallVector<unsigned, 4> AntiDepRegVector;
- typedef std::map<SUnit *, AntiDepRegVector> CandidateMap;
-
virtual ~AntiDepBreaker();
- /// GetMaxTrials - Return the maximum number of anti-dependence
- /// breaking attempts that will be made for a block.
- virtual unsigned GetMaxTrials() =0;
-
- /// NeedCandidates - Return true if the schedule must provide
- /// candidates with BreakAntiDependencies().
- virtual bool NeedCandidates() =0;
-
/// Start - Initialize anti-dep breaking for a new basic block.
virtual void StartBlock(MachineBasicBlock *BB) =0;
/// basic-block region and break them by renaming registers. Return
/// the number of anti-dependencies broken.
///
- virtual unsigned BreakAntiDependencies(std::vector<SUnit>& SUnits,
- CandidateMap& Candidates,
- MachineBasicBlock::iterator& Begin,
- MachineBasicBlock::iterator& End,
+ virtual unsigned BreakAntiDependencies(const std::vector<SUnit>& SUnits,
+ MachineBasicBlock::iterator Begin,
+ MachineBasicBlock::iterator End,
unsigned InsertPosIndex) =0;
/// Observe - Update liveness information to account for the current