vsk requested changes to this revision.
vsk added a comment.
This revision now requires changes to proceed.

Toolchain vendors aren't currently required to provide default blacklists for 
every sanitizer clang supports. We don't ship a default ubsan blacklist on 
macOS, so this patch would break ubsan for all our users.

I think we need to find a different solution here. Have you considered making a 
blacklist mandatory just for CFI? Alternatively, if the blacklist is tiny and 
never changes, perhaps we could embed it within the compiler?


Repository:
  rC Clang

https://reviews.llvm.org/D46403



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