[lno] copy header and vectorization

[Daniel Berlin]

On Feb 17, 2004, at 11:15 PM, Devang Patel wrote:
> After copy header phase, scev determines the initial condition for this
> loop is i=1 and that causes vectorizer to reject this loop. I am 
> including
> debug dump after copy header at the end of email.
>
> Is it a known issue ?
> --
> Devang
Probably.
I've sent sebastian several simple loops that are not properly analyzed 
by analyzer.

He has been working on a new version.

In the meantime, why not clean up the DDG GTY'ing mess, or use loop 
versioning somewhere?

>