https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102953
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
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CC| |crazylht at gmail dot com,
| |wwwhhhyyy333 at gmail dot com
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Andrew Cooper from comment #0)
>
> Finally, one minor code generation improvement. When GCC emits a direct
> call/jmp to an ENDBR'd symbol, it can actually use sym+4 as an optimisation
> to skip the ENDBR instruction (not needed for direct call/jmp's) and save on
> decode bandwidth.
It is only safe for calling a static function whose address has been taken.
