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From: "tschwinge at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/94248] [amdgcn] Doesn't build with RTL checking
Date: Wed, 22 Apr 2020 09:47:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94248

Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2020-04-21 00:00:00         |2020-4-22

--- Comment #6 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
(In reply to Andrew Stubbs from comment #5)
> Yes, the REG_P can still ICE with the additional checking enabled.

So are you fine with me installing Jakub's patch?

(In reply to Thomas Schwinge from comment #4)
> Thus, again:
>=20
> (In reply to Thomas Schwinge from comment #2)
> > (In reply to Jakub Jelinek from comment #1)
> > > --- gcc/config/gcn/gcn.md.jj	2020-03-03 07:57:42.363827602 +0100
> > > +++ gcc/config/gcn/gcn.md	2020-03-21 15:37:45.337552515 +0100
> > > @@ -625,7 +625,7 @@ (define_insn_and_split "*mov<mode>_insn"
> > >      rtx outhi =3D gen_highpart_mode (SImode, <MODE>mode, operands[0]=
);
> > >=20=20
> > >      /* Ensure that overlapping registers aren't corrupted.  */
> > > -    if (REGNO (outlo) =3D=3D REGNO (inhi))
> > > +    if (reg_overlap_mentioned_p (outlo, inhi))
> > >        {
> > >  	operands[0] =3D outhi;
> > >  	operands[1] =3D inhi;
> > > ought to fix this
> >=20
> > I've tested that one; no more ICE, and bit-identical code for all target
> > libraries, so I suppose this is good to commit (Andrew, Julian)?  If
> > approving this patch, please respond with "Reviewed-by: NAME <EMAIL>" so
> > that your effort will be recorded in the commit log, see
> > <https://gcc.gnu.org/wiki/Reviewed-by>.=