https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102622
--- Comment #10 from Aldy Hernandez <aldyh at redhat dot com> --- Does :1-1 fail? In which case it's definitely the first thread.
aldyh at redhat dot com via Gcc-bugs Wed, 06 Oct 2021 07:24:56 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102622
--- Comment #10 from Aldy Hernandez <aldyh at redhat dot com> --- Does :1-1 fail? In which case it's definitely the first thread.