[fpc-devel] Plans for 2022

J. Gareth Moreton gareth at moreton-family.com
Sun Jan 9 14:38:12 CET 2022

It's probably a good idea, yes.  Normally the optimisations I implement 
are due to me spotting something in the RTL or compiler disassembly 
while optimising something else, so the tests per se are in those 
units.  Dedicated tests, like my recently added POPCNT tests, are a good 
idea even if the set-up is quite uncommon (e.g. it's rare that one would 
check, say, PopCnt(X) = 0 (or <> 0) because checking X directly gives 
you the exact same result - in that particular case, I added it because 
it was as simple as adding a couple of labels to a case block.

How should we start with making these tests?

Gareth aka. Kit

On 09/01/2022 11:14, Florian Klämpfl via fpc-devel wrote:
>> Am 09.01.2022 um 08:09 schrieb J. Gareth Moreton via fpc-devel <fpc-devel at lists.freepascal.org>:
>> Some people requested a Patreon post as to my plans for 2022 with FPC, so I was happy to oblige.  Plans may change a bit though depending on what happens in life and also what Florian's own vision is with the compiler, but this is the gist of it:
>> https://www.patreon.com/posts/60922821
> One thing we should think about: the current optimizations being added get more and more rare so they are often not tested anymore by the existing regression tests. So maybe we should think about a dedicated facility for assembler optimization testing.
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