@mgorny@social.treehouse.systems2025-07-19 18:11:06
How you don't want to spend your Saturday: figuring out how many regressions #LLVM developers managed to sneak in just before the 21.x branching, and then bisecting them.
The answer: 2 serious regressions breaking libclc build and install, 2 test regressions in clang and compiler-rt respectively (the former quickly reverted on main, for the second time, but nobody thought of backporting), and 1 assertion failure in experimental backend.
Now I really hope I'll manage a clean run for 21.1.0-rc1 with the biggest zero-day LLVM patchset in the history of #Gentoo.
LLVM downstream maintenance is a nightmare.