[fpc-devel] Fwd: Re: An optimization suggestion for FPC

[Jonas Maebe]

On 28/06/2020 14:18, J. Gareth Moreton wrote:
> Thanks Jonas.  I'll see what I can put together.  A record with a single
> field is a bit of a special case, but one I'll keep in mind.  More than
> anything I'll have to study the disassembly to see what's happening, and
> if things are faster with primitive types simply because they're
> register variables (which are always faster than stack variables even on
> L1) or due to something else.

This issue is not register versus memory, it's "register + a bunch of
masking and inserting" versus memory, plus the code size overhead (which
will probably not have any noticeable effects in a small benchmark).


Jonas