IR: add "cmpxchg weak" variant to support permitted failure.

[oota-llvm.git] / lib / CodeGen / AggressiveAntiDepBreaker.h

diff --git a/lib/CodeGen/AggressiveAntiDepBreaker.h b/lib/CodeGen/AggressiveAntiDepBreaker.h
index e43fe65c16cc32aaaa383701fe736f70586e367a..2ab9d89574e49466648604d8699c2a98e74ab221 100644 (file)
--- a/lib/CodeGen/AggressiveAntiDepBreaker.h
+++ b/lib/CodeGen/AggressiveAntiDepBreaker.h
@@ -18,15 +18,15 @@
 #define LLVM_CODEGEN_AGGRESSIVEANTIDEPBREAKER_H
 
 #include "AntiDepBreaker.h"
+#include "llvm/ADT/BitVector.h"
+#include "llvm/ADT/SmallSet.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/ScheduleDAG.h"
-#include "llvm/Target/TargetSubtarget.h"
 #include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/ADT/BitVector.h"
-#include "llvm/ADT/SmallSet.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 #include <map>
 
 namespace llvm {
@@ -131,12 +131,12 @@ class RegisterClassInfo;
 
   public:
     AggressiveAntiDepBreaker(MachineFunction& MFi,
-                             const RegisterClassInfo &RCI,
-                             TargetSubtarget::RegClassVector& CriticalPathRCs);
+                          const RegisterClassInfo &RCI,
+                          TargetSubtargetInfo::RegClassVector& CriticalPathRCs);
     ~AggressiveAntiDepBreaker();
 
     /// Start - Initialize anti-dep breaking for a new basic block.
-    void StartBlock(MachineBasicBlock *BB);
+    void StartBlock(MachineBasicBlock *BB) override;
 
     /// BreakAntiDependencies - Identifiy anti-dependencies along the critical
     /// path
@@ -146,15 +146,16 @@ class RegisterClassInfo;
                                    MachineBasicBlock::iterator Begin,
                                    MachineBasicBlock::iterator End,
                                    unsigned InsertPosIndex,
-                                   DbgValueVector &DbgValues);
+                                   DbgValueVector &DbgValues) override;
 
     /// Observe - Update liveness information to account for the current
     /// instruction, which will not be scheduled.
     ///
-    void Observe(MachineInstr *MI, unsigned Count, unsigned InsertPosIndex);
+    void Observe(MachineInstr *MI, unsigned Count,
+                 unsigned InsertPosIndex) override;
 
     /// Finish - Finish anti-dep breaking for a basic block.
-    void FinishBlock();
+    void FinishBlock() override;
 
   private:
     /// Keep track of a position in the allocation order for each regclass.
@@ -169,7 +170,8 @@ class RegisterClassInfo;
     void GetPassthruRegs(MachineInstr *MI, std::set<unsigned>& PassthruRegs);
 
     void HandleLastUse(unsigned Reg, unsigned KillIdx, const char *tag,
-                       const char *header =NULL, const char *footer =NULL);
+                       const char *header = nullptr,
+                       const char *footer = nullptr);
 
     void PrescanInstruction(MachineInstr *MI, unsigned Count,
                             std::set<unsigned>& PassthruRegs);