Rui Ueyama believes that the LLD linker is ready for production with ELF platforms -- namely as Linux and BSDs -- on at least x86_64 but the AArch64 and MIPS architecture support should be in good shape too.
LLD provides many of the same features as the GNU linkers (it aims to be a drop-in replacement) while being much faster. Those not yet familiar with the LLD linker can learn more about it via the project page.
There is this mailing list thread about encouraging the use of LLD.
Let me know in the forums if you are interested in seeing some Linux LLD testing for a future article on Phoronix.