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 DFC6F3858C54; Mon, 27 Mar 2023 18:41:17 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DFC6F3858C54
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1679942477;
	bh=smvlufKcb1JIbTItdA8rNkcTyw9zmQRPNqWg1zFM66w=;
	h=From:To:Subject:Date:From;
	b=laZVfiVe4IkxJ/hmmvv9dUc8gzV73aBu2tMyq3zQn0N7tc2aE5KMiZadsTR1wIWII
	 uL0jlmGQ265dIqkApO6SXZfdVJnILW1eSkldGSqyCRdTMlr/dIf9SlB2Mz5w8dlCO/
	 V50/RdwbUIENynC7rJaVNL8OHmcVDndnkzD+17ug=
From: "gscfq@t-online.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/109303] New: [13 Regression] ICE in
 push_agg_values_from_plats, at ipa-cp.cc:1458
Date: Mon, 27 Mar 2023 18:41:17 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: gscfq@t-online.de
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-109303-4@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=3D109303

            Bug ID: 109303
           Summary: [13 Regression] ICE in push_agg_values_from_plats, at
                    ipa-cp.cc:1458
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Started between 20221016 and 20221023, at -O2+ :


$ cat z1.c
struct s
{
  struct s1
  {
    unsigned char c1;
    unsigned short a1[2147483647];
  } __attribute__ ((packed)) p1;
  struct s2
  {
    unsigned char c2;
    unsigned short a2[100];
  } __attribute__ ((packed)) p2[4];
} __attribute__ ((packed));

typedef struct
{
  struct s b;
} qs;

static int
f (qs *q)
{
  int i, j;
  for (i =3D 0; i < q->b.p1.c1; i++)
    for (j =3D 0; j < q->b.p2[i].c2; j++)
      g (q->b.p2[i].a2[j]);
}

int main (void)
{
  qs q;
  q.b.p2[0].c2 =3D q.b.p2[1].c2 =3D 3;
  return f (&q);
}


$ gcc-13-20230326 -c z1.c -O2
z1.c: In function 'f':
z1.c:26:7: warning: implicit declaration of function 'g'
[-Wimplicit-function-declaration]
   26 |       g (q->b.p2[i].a2[j]);
      |       ^
during IPA pass: cp
z1.c: At top level:
z1.c:34:1: internal compiler error: in push_agg_values_from_plats, at
ipa-cp.cc:1458
   34 | }
      | ^
0x1db8677 push_agg_values_from_plats
        ../../gcc/ipa-cp.cc:1457
0x1db8aef gather_context_independent_values
        ../../gcc/ipa-cp.cc:3641
0x1dc0d59 estimate_local_effects
        ../../gcc/ipa-cp.cc:3746
0x1dcbe38 propagate_constants_topo
        ../../gcc/ipa-cp.cc:4105
0x1dcbe38 ipcp_propagate_stage
        ../../gcc/ipa-cp.cc:4292
0x1dcbe38 ipcp_driver
        ../../gcc/ipa-cp.cc:6616=