Interesting - thank you. Will be interesting to study the assembler
output to see what's going on.
I'm honoured that I've become the go-to person when optimisation is
concerned!
Gareth aka. Kit
On 03/01/2022 11:54, Martin Frb via fpc-devel wrote:
Hi Gareth,
not sure if this is of interest to you, but I see you do a lot on the
optimizer....
While testing the attached, I found that one of the functions was
notable slower when compiled with 3.3.1 (compared to 3.2.3).
So maybe something you are interested in looking at?
The Code in "Utf8LengthFash" (fst) went from around 600ms to 700ms.
3.3.1 from Dec 10th
3.2.3 from Dec 9th
Core I7 8700K
-O4 -Cpcoreavx2
fpc 3.2.3 / fpc 3.3.1
fst 594 fst 688
fst 578 fst 703
fst 578 fst 687
fst 562 fst 688
pop 485 pop 485
pop 500 pop 500
pop 500 pop 484
pop 484 pop 500
add 594 add 422
add 578 add 438
add 578 add 437
add 594 add 453
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