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authorDimitry Andric <dim@FreeBSD.org>2014-11-24 09:08:18 +0000
committerDimitry Andric <dim@FreeBSD.org>2014-11-24 09:08:18 +0000
commit5ca98fd98791947eba83a1ed3f2c8191ef7afa6c (patch)
treef5944309621cee4fe0976be6f9ac619b7ebfc4c2 /include/llvm/Support/BlockFrequency.h
parent68bcb7db193e4bc81430063148253d30a791023e (diff)
Diffstat (limited to 'include/llvm/Support/BlockFrequency.h')
-rw-r--r--include/llvm/Support/BlockFrequency.h19
1 files changed, 2 insertions, 17 deletions
diff --git a/include/llvm/Support/BlockFrequency.h b/include/llvm/Support/BlockFrequency.h
index 21879e7cbe41..4304a253b287 100644
--- a/include/llvm/Support/BlockFrequency.h
+++ b/include/llvm/Support/BlockFrequency.h
@@ -23,21 +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;
-
- /// \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 frequency, the saturation value.
static uint64_t getMaxFrequency() { return -1ULL; }
@@ -59,9 +49,8 @@ public:
BlockFrequency &operator+=(const BlockFrequency &Freq);
const BlockFrequency operator+(const BlockFrequency &Freq) const;
- /// \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);
+ /// \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;
@@ -78,12 +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