From: Martin Sebor <msebor@gmail.com>
To: Marek Polacek <polacek@redhat.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>, Jason Merrill <jason@redhat.com>
Subject: Re: C++ PATCH for c++/69496 (ICE on VLA in constexpr function)
Date: Fri, 29 Jan 2016 03:29:00 -0000 [thread overview]
Message-ID: <56AADC8D.7030704@gmail.com> (raw)
In-Reply-To: <20160128222731.GG25193@redhat.com>
On 01/28/2016 03:27 PM, Marek Polacek wrote:
> On Wed, Jan 27, 2016 at 09:52:13AM -0700, Martin Sebor wrote:
>> This happens to work but I suspect it's only by accident. When
>> the number of elements in the initializer is increased to exceed
>> the number of elements in the VLA GCC gets into infinite recursion.
>> (I opened bug 69516 with a test case). The same error in a non-
>> constexpr function causes a SEGV at runtime (this is also
>> a regression WRT 4.9.3 -- I opened bug 69517 for it).
>
> FWIW, the patch I posted today should cure all those infinite recursions.
Sounds good, and thanks for the heads up. I volunteered to add
a louder warning for the VLA initialization and I hope to find
some time to work on it as early as next week.
Martin
next prev parent reply other threads:[~2016-01-29 3:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 23:02 Marek Polacek
2016-01-27 3:58 ` Martin Sebor
2016-01-27 11:20 ` Marek Polacek
2016-01-27 16:52 ` Martin Sebor
2016-01-27 21:08 ` Jason Merrill
2016-01-28 22:27 ` Marek Polacek
2016-01-29 3:29 ` Martin Sebor [this message]
2016-01-27 14:08 ` Jason Merrill
2016-01-27 14:11 ` Marek Polacek
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