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From: "hubicka at ucw dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/97652] [11 Regression] New gfortran.dg/pdt_14.f03 failure after g:617695cdc2b3d950f1e4deb5ea85d5cc302943f4
Date: Mon, 02 Nov 2020 14:27:13 +0000 [thread overview]
Message-ID: <bug-97652-4-aE3AKqAeuB@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-97652-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97652
--- Comment #7 from Jan Hubicka <hubicka at ucw dot cz> ---
> And it looks like something (inlining) inserts __builtin_unreachable () calls
> that eventually make us optimize this to an endless loop.
>
> pdt_14.f03.081i.inline:Introduced new external node (__builtin_unreachable/19).
> pdt_14.f03.081i.inline:unreachable :
> 4 calls, 0.000000 freq, 0 count
> pdt_14.f03.081i.inline: __builtin_unreachable/19 unreachable
> ...
Aha, that will be the wrong jump function from ipa-cp I mentioned in
earlier comment. We should not believe that root is not written to as
we derive now from TBAA in push_8.
next prev parent reply other threads:[~2020-11-02 14:27 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-31 8:05 [Bug fortran/97652] New: New pdt14 " hubicka at gcc dot gnu.org
2020-10-31 8:18 ` [Bug fortran/97652] " hubicka at gcc dot gnu.org
2020-11-02 11:30 ` hubicka at gcc dot gnu.org
2020-11-02 13:39 ` [Bug fortran/97652] [11 Regression] New gfortran.dg/pdt_14.f03 " rguenth at gcc dot gnu.org
2020-11-02 13:48 ` rguenth at gcc dot gnu.org
2020-11-02 13:56 ` rguenth at gcc dot gnu.org
2020-11-02 13:58 ` rguenth at gcc dot gnu.org
2020-11-02 14:25 ` rguenth at gcc dot gnu.org
2020-11-02 14:27 ` hubicka at ucw dot cz [this message]
2020-11-02 14:29 ` [Bug ipa/97652] " rguenth at gcc dot gnu.org
2020-11-02 14:29 ` rguenth at gcc dot gnu.org
2020-11-02 14:32 ` hubicka at ucw dot cz
2020-11-02 14:51 ` [Bug fortran/97652] " rguenth at gcc dot gnu.org
2020-11-02 14:52 ` rguenth at gcc dot gnu.org
2020-11-03 7:25 ` rguenth at gcc dot gnu.org
2020-11-03 11:15 ` rguenth at gcc dot gnu.org
2020-11-06 7:27 ` cvs-commit at gcc dot gnu.org
2020-11-06 13:01 ` rguenth at gcc dot gnu.org
2020-11-06 15:32 ` cvs-commit at gcc dot gnu.org
2020-11-06 16:57 ` cvs-commit at gcc dot gnu.org
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