RFC: merging MEM_ATTRS

[Richard Henderson]

On Tue, Feb 10, 2004 at 01:09:07PM -0500, Richard Kenner wrote:
>     expr: If all alternatives are identical, use that, otherwise use a
> 	PARALLEL.
>     offset: Likewise.
> 
> I think that it's simpler just to use zero: the information isn't that useful
> by then.

Yep.

> They are powers of two, so just use the lowest.  But since we don't
> really use the alignment of a MEM that's already in an insn, I don't
> see the cost here.

It it used, but generally only during rtl expansion.


r~