Re: [PATCH] Remove legacy VRP (maybe?)

[Jeff Law <jeffreyalaw@gmail.com>]

On 11/21/22 09:35, Aldy Hernandez via Gcc-patches wrote:
> I've been playing around with removing the legacy VRP code for the
> next release.  It's a layered onion to get this right, but the first
> bit is pretty straightforward and may be useful for this release.
> Basically, it entails removing the old VRP pass itself, along with
> value_range_equiv which have no producers left.  The current users of
> value_range_equiv don't put anything in the equivalence bitmaps, so
> they're basically behaving like plain value_range.
>
> I removed as much as possible without having to change any behavior,
> and this is what I came up with.  Is this something that would be
> useful for this release?  Would it help release managers have less
> unused cruft in the tree?
>
> Neither Andrew nor I have any strong feelings here.  We don't foresee
> the legacy code changing at all in the offseason, so we can just
> accumulate these patches in local trees.

I'd lean towards removal after gcc-13 releases.


jeff