X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FSupport%2FBlockFrequency.h;h=4304a253b287c29fdd5091a38f11050fa0e00712;hb=a800215d54608bbe2d6adc918765c300217d97cb;hp=666b3c822dbcd215fe77193b8e56a280c53f2c65;hpb=2a210b7df7156cfc348e8287e05fcf662646614d;p=oota-llvm.git diff --git a/include/llvm/Support/BlockFrequency.h b/include/llvm/Support/BlockFrequency.h index 666b3c822db..4304a253b28 100644 --- a/include/llvm/Support/BlockFrequency.h +++ b/include/llvm/Support/BlockFrequency.h @@ -23,19 +23,11 @@ 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; } @@ -57,6 +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; } @@ -72,12 +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