vitalybuka added a comment. after revert: real 3m51.948s user 3m50.172s sys 0m1.756s before revert: real 16m18.127s user 16m16.255s sys 0m1.801s Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D144369/new/ https://reviews.llvm.org/D144369