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From: "anlauf at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/109948] [13/14 Regression] ICE(segfault) in gfc_expression_rank() from gfc_op_rank_conformable()
Date: Thu, 25 May 2023 18:34:22 +0000 [thread overview]
Message-ID: <bug-109948-4-nrHSRWaWkx@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-109948-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109948
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pault at gcc dot gnu.org
--- Comment #6 from anlauf at gcc dot gnu.org ---
(In reply to Rimvydas (RJ) from comment #5)
> (In reply to anlauf from comment #4)
> > Can you check if this works for you?
>
> This patch allows to avoid issue on all other associate use cases (tried on
> gcc-13 branch).
>
> However it is a bit suspicious that using variable name abbreviations (to
> dig out arrays from deeply nested types) is enough to change how the
> internal gfc_array_ref is populated. ICE was triggered only on patterns
> involving first using abbreviated name indexed access (like k(1)) followed
> by any operation involving whole array.
I agree that this patch is a band-aid, possibly for some latent issue.
The suspect patch may have affected the order of resolution.
Note that replacing in the reduced testcase in comment#3:
associate(k=>k_2d)
by
associate(k=>k_2d(:))
avoids the ICE and gives identical code for gcc-12 .. gcc-14. In fact,
the array-spec seems properly set.
I've added Paul in CC, who is more familiar with the associate construct.
next prev parent reply other threads:[~2023-05-25 18:34 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-24 0:20 [Bug fortran/109948] New: " rimvydas.jas at gmail dot com
2023-05-24 17:05 ` [Bug fortran/109948] " rimvydas.jas at gmail dot com
2023-05-24 17:14 ` [Bug fortran/109948] [13/14 Regression] " anlauf at gcc dot gnu.org
2023-05-24 17:19 ` anlauf at gcc dot gnu.org
2023-05-24 18:35 ` anlauf at gcc dot gnu.org
2023-05-25 3:07 ` rimvydas.jas at gmail dot com
2023-05-25 7:36 ` rguenth at gcc dot gnu.org
2023-05-25 18:34 ` anlauf at gcc dot gnu.org [this message]
2023-05-25 19:20 ` anlauf at gcc dot gnu.org
2023-05-26 9:47 ` pault at gcc dot gnu.org
2023-05-26 10:15 ` pault at gcc dot gnu.org
2023-05-26 10:34 ` mikael at gcc dot gnu.org
2023-05-26 21:00 ` anlauf at gcc dot gnu.org
2023-05-26 21:25 ` anlauf at gcc dot gnu.org
2023-05-26 21:35 ` anlauf at gcc dot gnu.org
2023-05-30 8:59 ` pault at gcc dot gnu.org
2023-05-31 17:11 ` pault at gcc dot gnu.org
2023-05-31 18:39 ` anlauf at gcc dot gnu.org
2023-05-31 19:39 ` mikael at gcc dot gnu.org
2023-06-02 7:42 ` cvs-commit at gcc dot gnu.org
2023-06-02 9:13 ` pault at gcc dot gnu.org
2023-06-02 9:16 ` pault at gcc dot gnu.org
2023-08-27 8:51 ` cvs-commit at gcc dot gnu.org
2023-09-07 16:04 ` anlauf at gcc dot gnu.org
2023-09-07 16:06 ` anlauf at gcc dot gnu.org
2023-09-28 8:57 ` anlauf at gcc dot gnu.org
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