BumpPtrAllocator: do the size check without moving any pointers

[oota-llvm.git] / include / llvm / Support / BlockFrequency.h

diff --git a/include/llvm/Support/BlockFrequency.h b/include/llvm/Support/BlockFrequency.h
index 147d52abe418ceb089132f18ac60b9c174284bcb..4304a253b287c29fdd5091a38f11050fa0e00712 100644 (file)
--- a/include/llvm/Support/BlockFrequency.h
+++ b/include/llvm/Support/BlockFrequency.h
@@ -23,18 +23,13 @@ class BranchProbability;
 
 // This class represents Block Frequency as a 64-bit value.
 class BlockFrequency {
-
   uint64_t Frequency;
-  static const int64_t ENTRY_FREQ = 1 << 14;
-
-  // Scale frequency by N/D, saturating on overflow.
-  void scale(uint32_t N, uint32_t D);
 
 public:
   BlockFrequency(uint64_t Freq = 0) : Frequency(Freq) { }
 
-  /// \brief Returns the frequency of the entry block of the function.
-  static uint64_t getEntryFrequency() { return ENTRY_FREQ; }
+  /// \brief Returns the maximum possible frequency, the saturation value.
+  static uint64_t getMaxFrequency() { return -1ULL; }
 
   /// \brief Returns the frequency as a fixpoint number scaled by the entry
   /// frequency.
@@ -54,6 +49,9 @@ public:
   BlockFrequency &operator+=(const BlockFrequency &Freq);
   const BlockFrequency operator+(const BlockFrequency &Freq) const;
 
+  /// \brief Shift block frequency to the right by count digits saturating to 1.
+  BlockFrequency &operator>>=(const unsigned count);
+
   bool operator<(const BlockFrequency &RHS) const {
     return Frequency < RHS.Frequency;
   }
@@ -69,12 +67,8 @@ public:
   bool operator>=(const BlockFrequency &RHS) const {
     return Frequency >= RHS.Frequency;
   }
-
-  void print(raw_ostream &OS) const;
 };
 
-raw_ostream &operator<<(raw_ostream &OS, const BlockFrequency &Freq);
-
 }
 
 #endif