CriticalAntiDepBreaker: Replace a SmallSet of regs with a much denser BitVector.

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

diff --git a/lib/CodeGen/CriticalAntiDepBreaker.h b/lib/CodeGen/CriticalAntiDepBreaker.h
index 07107802972d5f037b4d1fb217f8ce857feba414..77462593896e48c51570a0a5d49b8efed795a3b0 100644 (file)
--- a/lib/CodeGen/CriticalAntiDepBreaker.h
+++ b/lib/CodeGen/CriticalAntiDepBreaker.h
@@ -24,7 +24,6 @@
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/ScheduleDAG.h"
 #include "llvm/ADT/BitVector.h"
-#include "llvm/ADT/SmallSet.h"
 #include <map>
 
 namespace llvm {
@@ -66,7 +65,7 @@ class TargetRegisterInfo;
 
     /// KeepRegs - A set of registers which are live and cannot be changed to
     /// break anti-dependencies.
-    SmallSet<unsigned, 4> KeepRegs;
+    BitVector KeepRegs;
 
   public:
     CriticalAntiDepBreaker(MachineFunction& MFi, const RegisterClassInfo&);