https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #12 from Hongtao.liu ---
Fixed in GCC14, not sure if we want to backport the patch.
If so, the patch needs to be adjusted since GCC13 doesn't support auto_mpz.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #11 from CVS Commits ---
The master branch has been updated by hongtao Liu :
https://gcc.gnu.org/g:dbde384bd56f07bfbcae86f81fc74aa92e3786ad
commit r14-4834-gdbde384bd56f07bfbcae86f81fc74aa92e3786ad
Author: liuhongt
Date: Wed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #10 from Richard Biener ---
(In reply to Hongtao.liu from comment #9)
> > But we end up here with niters_skip being INTEGER_CST and ..
> >
> > > 1421 || (!vect_use_loop_mask_for_alignment_p (loop_vinfo)
> >
> > possibly
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #9 from Hongtao.liu ---
> But we end up here with niters_skip being INTEGER_CST and ..
>
> > 1421 || (!vect_use_loop_mask_for_alignment_p (loop_vinfo)
>
> possibly vect_use_loop_mask_for_alignment_p. Note
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #8 from rguenther at suse dot de ---
On Tue, 17 Oct 2023, crazylht at gmail dot com wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
>
> --- Comment #7 from Hongtao.liu ---
> (In reply to rguent...@suse.de from
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #7 from Hongtao.liu ---
(In reply to rguent...@suse.de from comment #6)
> On Mon, 16 Oct 2023, crazylht at gmail dot com wrote:
>
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
> >
> > --- Comment #5 from Hongtao.liu ---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #6 from rguenther at suse dot de ---
On Mon, 16 Oct 2023, crazylht at gmail dot com wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
>
> --- Comment #5 from Hongtao.liu ---
> (In reply to Richard Biener from comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #5 from Hongtao.liu ---
(In reply to Richard Biener from comment #3)
> for (unsigned i = 0; i != skipn - 1; i++)
> begin = wi::mul (begin, wi::to_wide (step_expr));
>
> (gdb) p skipn
> $5 = 4294967292
>
> niters
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
--- Comment #4 from Hongtao.liu ---
> niters is 4294967292 in vect_update_ivs_after_vectorizer. Maybe the loop
> should terminate when begin is zero. But I wonder why we pass in 'niters'
> and then name it 'skip_niters' ...
>
It's coming
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
Richard Biener changed:
What|Removed |Added
Priority|P3 |P2
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111820
Andrew Pinski changed:
What|Removed |Added
Keywords||needs-bisection
Known to work|
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