[Bug c/70458] Function and function pointers that, when called, imply an optimization barrier

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70458

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
I also seriously question

"The glibc consensus is to keep such calls."

can you provide a reference to the relevant discussion?