It was a wrapper around gcc's __builtin_expect macro but it was only
used in three places and not in a way that suggests it really helps
branch prediction on modern (or even not so modern) CPUs.
Refs: https://github.com/quickjs-ng/quickjs/issues/369
Friendly QuickJS fork focused on reigniting the project.
Overview
In October 2023 @bnoordhuis and @saghul decided to fork the QuickJS project with
the aim of reigniting it. They reached out to the original authors (@bellard and @chqrlie)
about their intentions.
As of December 2023 the initial goal was somewhat accomplished. @bellard resumed working on
the project and both parties have been pulling patches from each other since.
As of early 2024 both projects agree the proper path forward involves merging both projects
and combining the efforts. While that may take a while, since both projects diverged in certain
areas, there is willingness to go in this direction from both sides.