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From: "tnfchris at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/113144] [14 regression] ICE when building dpkg-1.21.15 in verify_dominators (error: dominator of 9 should be 48, not 12)
Date: Tue, 09 Jan 2024 03:49:58 +0000 [thread overview]
Message-ID: <bug-113144-4-15L5RVBEaM@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-113144-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113144
--- Comment #12 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #11)
> (In reply to Zdenek Sojka from comment #10)
> > Created attachment 57009 [details]
> > simpler testcase using _BitInt()
> >
> > $ x86_64-pc-linux-gnu-gcc -O3 -mavx2 testcase.c
> > testcase.c: In function 'foo':
> > testcase.c:5:1: error: dominator of 24 should be 57, not 12
> > 5 | foo (void)
> > | ^~~
> > testcase.c:5:1: error: dominator of 25 should be 57, not 12
> > during GIMPLE pass: vect
> > testcase.c:5:1: internal compiler error: in verify_dominators, at
> > dominance.cc:1194
> > 0x742528 verify_dominators(cdi_direction)
> > ...
>
> that might be a different issue ...
It's the same issue, but also fixed by the patch.
It's however not simpler :) this expands into a series of loops, and one of the
loops has 3 exits which is why it triggers.
The fixes that I am re-spinning fixes this and correctly vectorizes the loops.
next prev parent reply other threads:[~2024-01-09 3:49 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-26 6:55 [Bug tree-optimization/113144] New: " sjames at gcc dot gnu.org
2023-12-26 6:55 ` [Bug tree-optimization/113144] " sjames at gcc dot gnu.org
2023-12-26 7:01 ` sjames at gcc dot gnu.org
2023-12-26 14:14 ` tnfchris at gcc dot gnu.org
2023-12-26 14:28 ` tnfchris at gcc dot gnu.org
2023-12-27 11:54 ` tnfchris at gcc dot gnu.org
2023-12-27 11:55 ` tnfchris at gcc dot gnu.org
2023-12-28 11:28 ` dcb314 at hotmail dot com
2023-12-29 21:07 ` tnfchris at gcc dot gnu.org
2024-01-05 13:18 ` tnfchris at gcc dot gnu.org
2024-01-08 19:37 ` zsojka at seznam dot cz
2024-01-08 19:55 ` pinskia at gcc dot gnu.org
2024-01-09 3:49 ` tnfchris at gcc dot gnu.org [this message]
2024-01-09 17:14 ` jamborm at gcc dot gnu.org
2024-01-09 19:08 ` tnfchris at gcc dot gnu.org
2024-01-09 22:21 ` tnfchris at gcc dot gnu.org
2024-01-10 12:54 ` cvs-commit at gcc dot gnu.org
2024-01-10 12:56 ` tnfchris at gcc dot gnu.org
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