https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122533
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2025-11-03
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Uroš Bizjak from comment #6)
> (In reply to Andrew Pinski from comment #5)
> > (In reply to Andrew Pinski from comment #3)
> > > (In reply to Andrew Pinski from comment #2)
> > > > That is due to uncprop pass which does the wrong thing here. Let me file
> > > > that seperately.
> > >
> > > Actually it is partly that and another issue which I file seperately too.
> >
> > PR 122534.
>
> The above PR is now fixed, but the improvement is ineffective for this
> particular testcase, because %rsi from the AND insn is not dead.
>
> .L3:
> mov rsi, rdx
> and rsi, QWORD PTR [rcx+rax*8]
> jne .L4
> add rax, 1
> cmp rax, 6
> jne .L3
> mov rax, rsi <- *** used here ***
> ret
Right that is the uncprop issue I mentioned above: PR 107099.
