[Bug libgomp/79784] Synchronization overhead is thrashing on Aarch64

[cbz at baozis dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79784

--- Comment #7 from Chen Baozi <cbz at baozis dot org> ---
Created attachment 40867
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40867&action=edit
synchronization test case