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

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

It doesn't matter what code is in the module which is currently being processed; another module could do `__attribute((constructor)) void f() { pthread_t t; pthread_create(&t, 0, puts, "foo"); }` or something.


https://reviews.llvm.org/D45736