diff options
Diffstat (limited to 'include/llvm/Support/BlockFrequency.h')
-rw-r--r-- | include/llvm/Support/BlockFrequency.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/llvm/Support/BlockFrequency.h b/include/llvm/Support/BlockFrequency.h index 839cf93712..77b1bf4413 100644 --- a/include/llvm/Support/BlockFrequency.h +++ b/include/llvm/Support/BlockFrequency.h @@ -30,12 +30,19 @@ class BlockFrequency { 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 frequency as a fixpoint number scaled by the entry + /// frequency. uint64_t getFrequency() const { return Frequency; } + /// \brief Multiplies with a branch probability. The computation will never + /// overflow. BlockFrequency &operator*=(const BranchProbability &Prob); const BlockFrequency operator*(const BranchProbability &Prob) const; + /// \brief Adds another block frequency using saturating arithmetic. BlockFrequency &operator+=(const BlockFrequency &Freq); const BlockFrequency operator+(const BlockFrequency &Freq) const; |