[PATCH] D45736: [SimplifyLibcalls] Replace locked IO with unlocked IO

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added a comment.

In https://reviews.llvm.org/D45736#1071386, @efriedma wrote:

> I don't think there's any practical way to prove that no other thread will write to stdout.


I can check if non static functions calls a certain static function.


https://reviews.llvm.org/D45736