[Bug target/93492] Broken code with -fpatchable-function-entry and -fcf-protection=full

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93492

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 47758
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47758&action=edit
A patch

If it looks OK, I will add a couple testcases.