[PATCH] D134203: [PGO] Avoid assertion on degenerate profile

[Rong Xu via Phabricator via llvm-commits]

xur added a comment.

I'm fine with change. But can you add a warning message here? I would be helpful to know something is wrong here.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D134203/new/

https://reviews.llvm.org/D134203