https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94248
Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:
What |Removed |Added
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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:
>
> (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 = gen_highpart_mode (SImode, <MODE>mode, operands[0]);
> > >
> > > /* Ensure that overlapping registers aren't corrupted. */
> > > - if (REGNO (outlo) == REGNO (inhi))
> > > + if (reg_overlap_mentioned_p (outlo, inhi))
> > > {
> > > operands[0] = outhi;
> > > operands[1] = inhi;
> > > ought to fix this
> >
> > 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>.
