From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 94BD93858D39; Tue, 28 Mar 2023 21:53:29 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 94BD93858D39
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1680040409;
	bh=lCrSOV62hfFCxY9W46tL2H2xlmjs90aB0kcloADzrNA=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=u2lkwjgRcw/Xe6PPb3g53u1/ANi95dTScHqUX9SUjI3U2S8XgRbM9h+gqSq8iQn+1
	 0kOmpSoaXNMdc1f55ssQ1MkbJwU0tQmMD/n+JUjH3aPPhM8/xFeME1sSlKc0wD8izG
	 cWQL+L2gFeKYu0oEfF2fdJUMBowyrPgIJD6WCUAQ=
From: "muecker at gwdg dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/104970] [12 Regression] ICE in execute_todo,
 at passes.cc:2133 since r12-6480-gea19c8f33a3a8d2b
Date: Tue, 28 Mar 2023 21:53:28 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: muecker at gwdg dot de
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: siddhesh at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 12.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: cc
Message-ID: <bug-104970-4-Rh0ud9kpPc@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-104970-4@http.gcc.gnu.org/bugzilla/>
References: <bug-104970-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104970

Martin Uecker <muecker at gwdg dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |muecker at gwdg dot de

--- Comment #13 from Martin Uecker <muecker at gwdg dot de> ---

This fix seem too radical. It now prevents this from working even when ther=
e is
an explicit attribute but there is also a VLA bound.  Also I think it would=
 be
nice if it worked without the explicit attribute at least in the simple cas=
es
where this should be now problem.

__attribute__ ((noinline, access (read_only, 2, 1)))
int foo(int n, int buf[n])
{
    buf[n] =3D 1;
    return __builtin_dynamic_object_size(buf, 0);
}

int main() {
    int n =3D 10;
    int buf[n];
    return foo(n, buf);
}=