auto vectorization in gcc

[Dorit Naishlos]

Michael Meissner wrote:
(http://gcc.gnu.org/ml/gcc/2003-07/msg01347.html)

> If you do at at the tree level, you do have to make sure that it will
work
> later as you descend into RTL (ie, do you even have vectors on the
particular
> machine in question -- what types of restrictions do vectors have, etc.)

I agree. I think this information is vital for vectorization.

dorit