This fork appears to be active:
https://github.com/TinyCC/tinycc
Hi Rich, good catch!, thanks for the info.
But I think tcc is ONLY for x86 programs, not for x86-64. The merit of TPDE may be that fast-compile (not fast optimizer) is good for developers to quick compile + debug, rinse and repet. And some ideas maybe be in future implemented in other compilers. Maybe combined with Mold linker. It is good to know that still there are people who challenge the status quo and the ideas from 1990. The CPU evolved a lot, so parsers / compilers / linkers should also.