Use BlockFrequency instead of uint32_t in BlockFrequencyInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136278 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/MachineBlockFrequencyInfo.h

@@ -15,6 +15,7 @@
 #define LLVM_CODEGEN_MACHINEBLOCKFREQUENCYINFO_H
 
 #include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/Support/BlockFrequency.h"
 #include <climits>
 
 namespace llvm {
@@ -45,7 +46,7 @@ public:
   /// that we should not rely on the value itself, but only on the comparison to
   /// the other block frequencies. We do this to avoid using of floating points.
   ///
-  uint32_t getBlockFreq(MachineBasicBlock *MBB);
+  BlockFrequency getBlockFreq(MachineBasicBlock *MBB);
 };
 
 }