Re: partition function into cold and hot function by using __builtin_expect

[陈云星 via Gcc-help <gcc-help@xxxxxxxxxxx>]

In my test : https://godbolt.org/z/87dWMejPP <https://godbolt.org/z/87dWMejPP>

It seems [[likely]] and [[unlikely]] just have same effective like __builtin_expect;

Will not split function into cold function and hot function ( which __attribute__((cold)) on callee function can do so).

> 2021年5月6日 下午7:27，Jonathan Wakely <jwakely.gcc@xxxxxxxxx> 写道：
> 
> [[likely]]