[PATCH] D73739: Exception support for basic block sections

[Di Mo via Phabricator via llvm-commits]

modimo added a comment.

I think with this alongside the recently committed MachineFunctionSplitter (MFS) the MFS phase is a good place to split out EH landing pads in both profile and non-profile code. A small change in MFS will enable EH LP splits in profiling given they should always be cold. I think in non-profile mode a sub-flag can be added like -mfs-split-LP-only where EH LPs are always split out. Enabling a general static-analysis splitting could also be interesting but outside of EH LPs I'm not certain there's guaranteed gains in other scenarios.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D73739/new/

https://reviews.llvm.org/D73739