Comment by pja
Six years ago I was building LLVM pretty regularly on an 8GB Dell 9360 laptop whilst on a compiler related contract. (Still have it actually - that thing is weirdly indestructible for a cheap ultrabook.)
Build time wasn’t great, but it was tolerable, so long as you reduced link parallelism to squeeze inside the memory constraints.
Is it still possible to compile LLVM on such a machine, or is 8Gb no longer workable at all?
If you don't build with parallelism and have a couple gigs of swap available, it should work (although you might need to set some command line flags to use the right linker settings).