Your optimism about compiler behavior is charming. I think you may be disappointed if you expect compilers to interleave loads just because this approach works better on modern processors. My experience has been that GCC goes out of its way to hoist all of your carefully interleaved loads to a big block at the top.

I'm guessing it does this because it's a simple heuristic that was often helpful before out-of-order processors became common. Normally, the performance impact of this is very small, but when it does exist, it's usually negative. If I recall, ICC does a better job of interleaving, or at least leaving things interleaved.