[PATCH] D36115: [Loop Vectorize] Block Probability for Predicated Blocks

[Hiroshi Inoue via Phabricator via llvm-commits]

inouehrs added inline comments.


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Comment at: lib/Transforms/Vectorize/LoopVectorize.cpp:350
+  return ((BFI->getBlockFreq(HeaderBB)).getFrequency()) /
+         ((BFI->getBlockFreq(BB)).getFrequency());
+}
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Don't you need to handle the case of zero frequency (e.g. if BFI is not available) to avoid divide-by-zero?


https://reviews.llvm.org/D36115