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 106413858D3C; Sat, 17 Jun 2023 19:05:51 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 106413858D3C
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1687028751;
	bh=rG3lSg7d+//3GyNS5vYz+8mwYwXtfuFzvEQUshmqSrI=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=IhrBvvMu0yhIYZ+9tHURWWy/60RWDCoesGAly8nsKts7HQE5L8znvzWA0AotVa/CY
	 E8csLKVqqBofhpBVnTiFfqM9CnG/fJ8qoWtpwZsTDy044/QvF/gfnBj80k//iJ9pdb
	 c2YMiifR3KL0N38+id7cj9b/HhYx9E0vjDEudTpo=
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/110295] [10/11/12/13/14 Regression] ICE in dwarf2out_finish
 with local class with inherited operator delete in a templated function and
 -g
Date: Sat, 17 Jun 2023 19:05:50 +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: 11.4.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia 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: 10.5
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: short_desc target_milestone everconfirmed
 cf_known_to_work cf_known_to_fail bug_status keywords cf_reconfirmed_on
Message-ID: <bug-110295-4-iJcumkpCYO@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-110295-4@http.gcc.gnu.org/bugzilla/>
References: <bug-110295-4@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=3D110295

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|internal compiler error: in |[10/11/12/13/14 Regression]
                   |dwarf2out_finish            |ICE in dwarf2out_finish
                   |                            |with local class with
                   |                            |inherited operator delete
                   |                            |in a templated function and
                   |                            |-g
   Target Milestone|---                         |10.5
     Ever confirmed|0                           |1
      Known to work|                            |5.1.0, 5.5.0
      Known to fail|                            |10.1.0, 6.1.0, 7.1.0
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|                            |2023-06-17

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced testcase:
```
template <typename T>
struct QCachedT
{
  void operator delete(void *, T *) {}
};
template<int a>
void exercise()
{
  struct thing_t
    : QCachedT<thing_t>
  {
  };
  thing_t *list[1];
  new thing_t;
}
int main() { exercise<1>(); }
```

Note exercise needs to be templated and so does QCachedT.
My guess is thing_t that is for the operator delete is not be subsituted
correctly for the new class when instantiating exercise; it works ok withou=
t -g
but when trying to emit debug info, it crashes not knowing the class.=