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vectorizing optimization
- From: Andrea 'Fyre Wyzard' Bocci <fwyzard at inwind dot it>
- To: gcc at gcc dot gnu dot org
- Date: Mon, 26 Nov 2001 23:58:53 +0100
- Subject: vectorizing optimization
Hi everybody.
It's been some times now, I've got this recurrent idea:
Implementing an automatic vectorizing optimization pass would (if it
worked) A Good Thing.
And, from my this-is-the-first-time-I-look-at-something-as-complex-as-gcc
point of view, quite hard to do.
Anyway, as I hope to have much spare time by a week (I'm graduating at the
beginning of December), I'd like spend some of it learning the gcc intenals
and trying to implement it.
Now, my questions:
1) I've seen that vector instructions support is being added to the 3.1
branch. Is anybody already working on a vectorizing pass?
2) At what level it would be better implemented ? tree or RTL ? In a branch
from the main tree, or in conjunction withe the AST branch ?
3) In a machine independent fashion, or for a specific architecture (eg.,
386) ?
Thanks in advance for your info - and keep on with the good work, it IS
much appreciated :-)
fwyzard