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 DB2A83858D3C; Fri, 19 Nov 2021 14:05:30 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DB2A83858D3C
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/103328] [11/12 Regression] ICE in remap_gimple_stmt, at
 tree-inline.c:1921 since r11-7419-g0f161cc8494cf728
Date: Fri, 19 Nov 2021 14:05:30 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 11.2.1
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.3
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-103328-4-xctc5sVT1M@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-103328-4@http.gcc.gnu.org/bugzilla/>
References: <bug-103328-4@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
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Fri, 19 Nov 2021 14:05:31 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103328

--- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> ---
And

static void
verify_scope_blocks (tree block, tree supercontext)
{
  gcc_assert (BLOCK_SUPERCONTEXT (block) =3D=3D supercontext);
  for (tree t =3D BLOCK_SUBBLOCKS (block); t; t =3D BLOCK_CHAIN (t))
    verify_scope_blocks (t, block);
}

with checking inside gimplify_function_tree

  verify_scope_blocks (DECL_INITIAL (current_function_decl),
                       current_function_decl);

ICEs first with

#1  0x00000000013ca52a in verify_scope_blocks (block=3D<block 0x7ffff63cacc=
0>,=20
    supercontext=3D<block 0x7ffff63cad20>)
    at /home/rguenther/src/gcc3/gcc/gimplify.c:16044
16044     gcc_assert (BLOCK_SUPERCONTEXT (block) =3D=3D supercontext);
gdb) p cfun->decl
$1 =3D <function_decl 0x7ffff63b5600 io_fiber>
(gdb) p
block->block.supercontext->block.supercontext->block.supercontext->block.su=
percontext
$12 =3D <tree 0x0>

possibly 'block' was added into another function, but it roots at NULL...

somehow all the BLOCK setup is done in poplevel() but I can't see what's wr=
ong.=