Remove some old experimental code that is no longer needed. Remove additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks.

llvm-svn: 89471

1 files changed, 1 insertions, 8 deletions

diff --git a/llvm/lib/CodeGen/CriticalAntiDepBreaker.h b/llvm/lib/CodeGen/CriticalAntiDepBreaker.h
index 5664d852fdf..496888d45f9 100644
--- a/llvm/lib/CodeGen/CriticalAntiDepBreaker.h
+++ b/llvm/lib/CodeGen/CriticalAntiDepBreaker.h
@@ -25,6 +25,7 @@
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/SmallSet.h"
+#include <map>
 
 namespace llvm {
   class CriticalAntiDepBreaker : public AntiDepBreaker {
@@ -64,13 +65,6 @@ namespace llvm {
     CriticalAntiDepBreaker(MachineFunction& MFi);
     ~CriticalAntiDepBreaker();
     
-    /// GetMaxTrials - Critical path anti-dependence breaking requires
-    /// only a single pass
-    unsigned GetMaxTrials() { return 1; }
-
-    /// NeedCandidates - Candidates not needed.
-    bool NeedCandidates() { return false; }
-
     /// Start - Initialize anti-dep breaking for a new basic block.
     void StartBlock(MachineBasicBlock *BB);
 
@@ -78,7 +72,6 @@ namespace llvm {
     /// of the ScheduleDAG and break them by renaming registers.
     ///
     unsigned BreakAntiDependencies(std::vector<SUnit>& SUnits,
-                                   CandidateMap& Candidates,
                                    MachineBasicBlock::iterator& Begin,
                                    MachineBasicBlock::iterator& End,
                                    unsigned InsertPosIndex);