Thanks for the prompt replies.
Please read no further, PEBKAC: I was on an old compiler on the machine I
was running on (I had updated the compiler on my desktop, but clearly not
the Pi I was testing this on - now re-building with latest).
In truth this was a problem I came across a few weeks a
On Tue, Dec 19, 2017 at 12:05 PM Chris Hopkins wrote:
...
> was slower than:
...
Without more information the conclusion that the optimization is not there
cannot be established. Inspect the real produced machine code. I guess
you'll find that the machine code differs in cache-line alignment o