[fpc-devel] Peephole optimizer tai class change proposals

J. Gareth Moreton gareth at moreton-family.com
Sun Oct 3 14:15:17 CEST 2021

That's useful to know - thanks Jonas.

On 03/10/2021 13:10, Jonas Maebe via fpc-devel wrote:
> On 03/10/2021 14:04, J. Gareth Moreton via fpc-devel wrote:
>> I'm aware that the tai class declares an "optinfo" field, although I'm
>> uncertain if this is safe to use or not given it's wrapped by an
>> conditional define and is of type Pointer.
> It's wrapped under {$ifndef NOOPT}, because it's intended for use by
> assembler optimisers and when NOOPT is defined, no assembler optimisers
> are included.
> It's defined as pointer because it's a field of an abstract base class
> in a unit that has no dependencies on target-specific units, and the
> actual type could be different for different target architectures.
> Its purpose is indeed to attach a pointer to a record with extra
> information that is only collected/updated during the optimisation phase.
> Jonas
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