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From: "aldyh at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/24021] VRP does not work with floating points
Date: Mon, 07 Feb 2022 16:07:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D24021

Aldy Hernandez <aldyh at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |aldyh at gcc dot gnu.org

--- Comment #5 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
(In reply to Andrew Macleod from comment #4)
> FWIW, we hope to enable floating point range support in ranger for GCC 13=
.=20
>=20
> One of the post stage 1 tasks is to generalize ranger to use a vrange cla=
ss,
> from which we can derive integral (irange), pointer (prange), and float
> (frange) types. possibly complex integral (cirange) and/or string (srange)
> have been thrown around if appropriate.
>=20
> Before we go to develop the frange class, we'll have a working session of
> some sort to flesh out what it can track, then implement some range-ops f=
or
> some float tree-codes.

FWIW, I'm on this.  I've begun work on vrange, and simultaneously have star=
ted
work on a proof-of-concept for floating points that I hope some more savvy
floating experts can extend.=