From: Sebastian Pop <sebpop@gmail.com>
To: Richard Biener <richard.guenther@gmail.com>
Cc: Sebastian Paul Pop <s.pop@samsung.com>,
GCC Patches <gcc-patches@gcc.gnu.org>,
hiraditya@msn.com
Subject: Re: [PATCH 2/2] [graphite] fix invalid bounds on array refs
Date: Thu, 03 Dec 2015 21:14:00 -0000 [thread overview]
Message-ID: <20151203211412.GA32487@f1.c.bardezibar.internal> (raw)
In-Reply-To: <CAFiYyc0n0e55Hh1MF-sEhECroRGS_+UUXse3gFW82kQQqhTG7Q@mail.gmail.com>
Richard Biener wrote:
> On Wed, Dec 2, 2015 at 10:36 PM, Sebastian Paul Pop <s.pop@samsung.com> wrote:
> > Do you recommend that we add a gcc_assert that min is always lower than max?
>
> No, min can be one less than max if the array has size zero.
Maybe a typo: do you mean max can be one less than min?
If the array has size zero, then I think ISL is correct in saying that there are
no dependences. As we miscompiled the testcase, I think that the bug is in the
Fortran front-end.
next prev parent reply other threads:[~2015-12-03 21:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-02 16:34 [PATCH 1/2] [graphite] rename flag_loop_optimize_isl to flag_loop_nest_optimize Sebastian Pop
2015-12-02 16:34 ` [PATCH 2/2] [graphite] fix invalid bounds on array refs Sebastian Pop
2015-12-02 21:18 ` Richard Biener
2015-12-02 21:36 ` Sebastian Paul Pop
2015-12-03 9:50 ` Richard Biener
2015-12-03 21:14 ` Sebastian Pop [this message]
2015-12-04 10:13 ` Richard Biener
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