I have a passion for games programming so this one really rings close
for me. The tricky thing is that early SSE and AVX instructions have to
fill and use the entire register - it's only AVX512 that starts to allow
partial filling, so things like packed 3-dimensional vectors are a
little difficult to manage. One can't just add a dummy 4th component
because then storage won't behave as expected.
Gareth aka. Kit
On 10/01/2022 03:08, Ryan Joseph via fpc-devel wrote:
On Jan 9, 2022, at 2:09 PM, J. Gareth Moreton via fpc-devel
<fpc-devel@lists.freepascal.org> wrote:
https://www.patreon.com/posts/60922821
Your plans are vectorization are an important gain for linear algebra and games.
Could you detect things like:
var
a, b, c: TVec2;
begin
c := a + b * V2(10, 10);
where the vec2 type has operator overloads for common operations? This kind of
thing is very common in graphics math and I bet there's some clever ways you
could compress that operation down. Curious how the C++ compilers do this
also...
Regards,
Ryan Joseph
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