[fpc-devel] Fwd: [Lazarusdev] Moving issue 39853 to FPC project

[J. Gareth Moreton]

Thanks Ondrej.

In the meantime, I've found the problem and am testing a fix. Basically 
the function that computes the magic number for a given bit size doesn't 
sign-extend it to the full size.  In the given example, the signed 
divisior +60 for 32-bit produces the multiplicand $88888889.  However, 
under x86_64, it is not sign-extended to the full 64-bit internal 
type... that is, the variable holds $00000000 88888889 instead of 
$FFFFFFFF 88888889. This causes a later condition that checks if the 
value is less than 0 to malfunction.

Gareth aka. Kit

On 18/08/2022 07:06, Ondrej Pokorny via fpc-devel wrote:
>
> Hello it looks like only people with FPC developer status can move 
> issues to the FPC project. Therefore I forward the request to fpc-devel.
>
> Ondrej
>
>
> -------- Weitergeleitete Nachricht --------
> Betreff: 	[Lazarusdev] Moving issue 39853 to FPC project
> Datum: 	Thu, 18 Aug 2022 03:51:33 +0300
> Kopie (CC): 	Maxim Ganetsky <ganmax at narod.ru>
>
>
>
> Hello.
>
> Could someone move this issue to FPC project please:
> https://gitlab.com/freepascal.org/lazarus/lazarus/-/issues/39853
>
> -- 
> Best regards,
>   Maxim Ganetskymailto:ganmax at narod.ru
>
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