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 2FBB23858D29; Mon, 22 Mar 2021 16:04:57 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2FBB23858D29
From: "nathan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/99480] [modules] ICE in import_entity_index, at
 cp/module.cc:3952
Date: Mon, 22 Mar 2021 16:04:57 +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: 11.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: nathan at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: nathan at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: everconfirmed cf_reconfirmed_on bug_status
Message-ID: <bug-99480-4-2w4ogG9oCq@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-99480-4@http.gcc.gnu.org/bugzilla/>
References: <bug-99480-4@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: Mon, 22 Mar 2021 16:04:57 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99480

Nathan Sidwell <nathan at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-03-22
             Status|UNCONFIRMED                 |ASSIGNED

--- Comment #1 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
// bug_a.ii
template<typename _Tp>
struct atomic;

template<typename _Tp>
struct atomic<_Tp*>;

// bug_b.ii
import  "bug_a.ii";

template<typename _Tp>
struct atomic<_Tp*>
{
};
./cc1plus -std=3Dc++20 -quiet -fmodule-header bug_a.ii && ./cc1plus -std=3D=
c++20
-quiet -fmodule-header bug_b.ii
bug_b.ii:5:1: internal compiler error: in import_entity_index, at
cp/module.cc:3943
    5 | {
      | ^
0xc8affe import_entity_index
        ../../../src/gcc/cp/module.cc:3943
0xcc4350 module_may_redeclare(tree_node*)
        ../../../src/gcc/cp/module.cc:18440
0xe23fda begin_class_definition(tree_node*)
        ../../../src/gcc/cp/semantics.c:3334=