[PATCH] D39028: Irreducible loop metadata for more accurate block frequency under PGO.

[Hiroshi Yamauchi via Phabricator via llvm-commits]

yamauchi added inline comments.


================
Comment at: include/llvm/Analysis/BlockFrequencyInfoImpl.h:1166
+        NumHeadersWithWeight++;
+        if (HeaderWeight.getValue())
+          Dist.addLocal(HeaderNode, HeaderWeight.getValue());
----------------
davidxl wrote:
> Is this check needed? 
Yes, Dist.addLocal will has an assert against incoming zero value.


https://reviews.llvm.org/D39028