Revert r200340, "Add line table debug info to COFF files when using a win32 triple."

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

diff --git a/include/llvm/Support/BlockFrequency.h b/include/llvm/Support/BlockFrequency.h
index 624d6dedfdd807b8b7fc82d4f9f81f7d8b8f638b..dae520b54e482e121d2cf9ba5eba221d4f5e739d 100644 (file)
--- a/include/llvm/Support/BlockFrequency.h
+++ b/include/llvm/Support/BlockFrequency.h
@@ -25,18 +25,16 @@ class BranchProbability;
 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);
+  /// \brief Scale the given BlockFrequency by N/D. Return the remainder from
+  /// the division by D. Upon overflow, the routine will saturate and
+  /// additionally will return the remainder set to D.
+  uint32_t 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 prequency, the saturation value.
+  /// \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
@@ -57,6 +55,13 @@ 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);
+
+  /// \brief Scale the given BlockFrequency by N/D. Return the remainder from
+  /// the division by D. Upon overflow, the routine will saturate.
+  uint32_t scale(const BranchProbability &Prob);
+
   bool operator<(const BlockFrequency &RHS) const {
     return Frequency < RHS.Frequency;
   }
@@ -72,12 +77,8 @@ 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