[PATCH] D54176: [PGO] clang part of change for context-sensitive PGO.

[David Li via Phabricator via llvm-commits]

davidxl added a comment.

Can you add a summary of this change, i.e., the driver option processing flow for csPGO.

Test cases are also missing.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D54176/new/

https://reviews.llvm.org/D54176