https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117650
--- Comment #3 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #2)
> I'm less sure about the libc functions. Glibc doesn't mark them as cold.
commit e3b0b3484cac61f9eae373751ac6eaf816a2c9c3
Author: Noah Goldstein <goldstein....@gmail.com>
Date: Mon Jul 29 15:34:33 2024 +0800
stdlib: Mark `abort` as `cold`
This helps HotColdSplitting in GCC/LLVM.
Thought about doing `exit` as well since its only called once per
process, but since its easy to imagine a hot path leading into
`exit(0)`, its less clear if its profitable.
Reviewed-by: Carlos O'Donell <car...@redhat.com>
commit f6f904745942540c7ea99c403b75b695ee560035
Author: Noah Goldstein <goldstein....@gmail.com>
Date: Fri Jul 26 16:35:13 2024 +0800
assert: Mark `__assert_fail` as `cold`
This helps compilers split the codegen for setting up the arguments
(`__expression`, `__filename`, etc...) from the potentially hot cold
where the `assert` is to a presumably cold region on the assertion
failure path.
Reviewed-by: Florian Weimer <fwei...@redhat.com>
Reviewed-by: Sam James <s...@gentoo.org>
