[PATCH] D46326: ThinLTO+CFI: short-circuit direct calls to jump table entries

[Peter Collingbourne via Phabricator via llvm-commits]

pcc added a comment.

In https://reviews.llvm.org/D46326#1105694, @vlad.tsyrklevich wrote:

> Based on a quick look at a couple of stack traces it looks like some direct
>  calls now call symbols that are no longer overriden by their replacements
>  in chromium, e.g. calls to realloc() from a DSO previously resolved to the
>  tcmalloc implementation in chromium instead of realloc.cfi(), the locally
>  linked tcmalloc implementation in that library.


I imagine that we will need to limit this optimization to dso_local functions.


Repository:
  rL LLVM

https://reviews.llvm.org/D46326