i'm not saying that manually writing simd assembly or intrinsics is useless, it's very often necessary, i'm just disagreeing w/ the statement > Unfortunately,

i'm not saying that manually writing simd assembly or intrinsics is useless, it's very often necessary, i'm just disagreeing w/ the statement > Unfortunately, compilers are notoriously bad at autovectorization and with the exception of relatively trivial loops, compilers rarely autovectorize effectively. from the article