Caused by unknown alignment, was: Re: On the x86_64, does one have to zero a vector register before filling it completely ?

[Daniel Berlin]

>
> Such a thing already existed a few years ago (IIRC Haifa had something
> that Dan picked up and passed on to me). But it never brought any
> benefits. I don't have the pass anymore, but perhaps Dan still has a
> copy of it somewhere.

It was actually posted and reviewed, you can find it in the archives.

It's probably wildly out of date now ;)

It's a fairly trivial lattice problem to implement using the sparse propagator.