auto vectorization in gcc

[Richard Henderson]

On Thu, Jul 17, 2003 at 03:45:47PM +0300, Dorit Naishlos wrote:
> (c) since the tree-level is machine independent, actual vectorization
>     will take place in the RTL level

I would think this would be false.  Just because the tree level
representation is machine independent doesn't mean we can't do
any target-specific transformations.

The tree level is *more* capable than the rtl level at representing
vector types (and thus operations).  I think all we need is some
small amount of info from the target about vector widths and memory
blocking, and then the transformation should happen at the tree level.


r~