[fpc-devel] FPC 3.2.0RC1 released!

[J. Gareth Moreton]

With your permission I'd like to use this project as part of my work to 
improve the peephole optimiser, among other things.  Any improvements 
probably won't happen until the version after 3.2.0, but I like a challenge!

J. Gareth Moreton, aka. Kit

P.S. One of the things I introduced into FPC 3.2.0 is the "vectorcall" 
calling convention for x86_64-win64.  It's currently mostly there for 
pure assembler routines and for interfacing with third-party libraries, 
since automatic vectorisation of Pascal code is still rather limited.  
It might be something to experiment with though.


On 01/04/2020 17:39, Kostas Michalopoulos via fpc-devel wrote:
> Hm, for me the new compiler produces slightly slower results. The 
> difference is tiny, but consistent. I use my raytracing benchmark from 
> here:
>
> http://runtimeterror.com/tools/raybench/
>
> The results on my AMD Ryzen 3700X are:
>
> FPC 3.0.4: 3.984 seconds
> FPC 3.2.0RC1: 4.047 seconds
>
> As i wrote, the difference is tiny, but over several runs it is pretty 
> much consistent.
>
> Note that these are for 32bit Windows executables. Also i'm using the 
> Lazarus-bundled build mentioned by Martin Frb above.
>
>
> On Tue, Mar 31, 2020 at 11:59 PM Florian Klämpfl 
> <florian at freepascal.org <mailto:florian at freepascal.org>> wrote:
>
>     Am 31.03.20 um 05:55 schrieb Joao Schuler:
>     > Just tested with my own neural networks API and I can confirm
>     that it works!
>     > Environment: WIN10 64bits AVX
>     >
>     > Tested with:
>     >
>     https://github.com/joaopauloschuler/neural-api/blob/master/examples/SimpleImageClassifier/SimpleImageClassifier.lpr
>
>     >
>     >
>     > In this test, there is a performance gain (speed) against 3.0.4
>     at about 9%.
>
>     Do you have numbers in comparison with trunk?
>
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