[devit]

That's completely asinine since it can't be made to work properly with inlining (including LTO), architectures that use a shadow stack or don't use a frame pointer, and also ridiculously inefficient and requiring assembly code for all architectures.

Use C++ or __attribute__((cleanup)) instead.

[epolanski]

Maybe it is.

Or maybe the asinine "thing", is some folks lack of text comprehension skills that can't distinguish an experiment from a best practice recommendation despite a title and content that clearly does not invite that.