[PATCH] D130754: [X86] Support ``-mindirect-branch-cs-prefix`` for call and jmp to indirect thunk

[Nikita Popov via Phabricator via cfe-commits]

nikic added a comment.

This change caused a significant compile-time regression for `O0` builds (about 1%): http://llvm-compile-time-tracker.com/compare.php?from=45bae1be90472c696f6ba3bb4f8fabee76040fa9&to=6f867f9102838ebe314c1f3661fdf95700386e5a&stat=instructions

At a guess, fetching a module flag for every single instruction is slow?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D130754/new/

https://reviews.llvm.org/D130754