[clang] [clang] Add optional pass to remove UBSAN traps using PGO (PR #84214)

[Vitaly Buka via cfe-commits]

vitalybuka wrote:

> is there a long term plan to add a driver flag for this?

yes, but I'd like to that after we collect feedback from first users

https://github.com/llvm/llvm-project/pull/84214