[isidor3]

I wrote a little solver for some programming puzzle. Thought I was being clever by using bitfields for an array of booleans to reduce memory usage and bandwidth, as they seemed a natural fit for the problem I was solving.

Turned out that it was actually significantly faster to use one byte per boolean and forgo the masking operations. I assume the processor was just good enough at keeping its cache filled in that particular workload, so the additional masking operations just slowed things down. So I understand why you might not want a compiler to automatically do this.