diff options
Diffstat (limited to 'llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp')
| -rw-r--r-- | llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp b/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp index 3d095068e7f..98209888f8a 100644 --- a/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp +++ b/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp @@ -573,7 +573,9 @@ BlockFrequencyInfoImplBase::getProfileCountFromFreq(const Function &F, APInt BlockFreq(128, Freq); APInt EntryFreq(128, getEntryFreq()); BlockCount *= BlockFreq; - BlockCount = BlockCount.udiv(EntryFreq); + // Rounded division of BlockCount by EntryFreq. Since EntryFreq is unsigned + // lshr by 1 gives EntryFreq/2. + BlockCount = (BlockCount + EntryFreq.lshr(1)).udiv(EntryFreq); return BlockCount.getLimitedValue(); } |
