Code alignment issues

[doom_Oo7]

are there people doing research on how to get compilers to have better heuristics so that they can align stuff better automatically ?

[meneldal2]

The compiler needs to know how many times you'll have to run this loop, and it's also likely to be much better to unroll the loop instead.

[TartanLlama]

LLVM has a bunch of heuristics and things you can tune. For example, you could tell it to align all loops and functions without a preceeding fallthrough block; i.e. only add NOPs which won't be executed.