[Bug middle-end/85620] Missing ENDBR after swapcontext

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85620

--- Comment #11 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 53299
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53299&action=edit
A patch