Dávid Bolvanský via llvm-dev
2018-Mar-23 15:07 UTC
[llvm-dev] Optimization: Replace functions with thread unsafe variants + detection of multithreading
Hello, My idea is to detect a multithreading and perform some transformations and get new possibilities for optimizations: 1. Check pthread_create and follow CallInstr (goal: to know that we are in new thread), identify functions where fork is used and check all other CallIstr (we are in child) + check Windows variants of fork/ thread create.. 2. Check functions if they do not contain any of thread unsafe functions - if yes - mark such function as thread unsafe. Then, we can replace some functions with thread unsafe variants in the functions, where we are sure that they are run by fork / pthread_create or already contain some thread unsafe functios. Does anybody know if there is any such work in llvm? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20180323/c893e9b8/attachment.html>