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 5E8883858C54; Tue,  6 Feb 2024 22:32:02 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5E8883858C54
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1707258722;
	bh=VBWysUw6X3jY6jC1/nj644NJvYh9I7Zt08tvCg+HBgw=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=WZhGSDXo50/2H+GH1ohhxe/l/ebBbt+sj5V1FeRsOi6mMsTZ20IIabjPd2j+YjA0H
	 RVuS4gp344dYO77TAYguH8EeCkrMTO2N4ZJTdTjfmU3tKotPEtbq0ZS7rbORI8V0dt
	 Oy0mwP5188UYb6yf0Ji6uwb7FHownXZ8FLv3WaP4=
From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/113789] [13/14 Regression] ICE on P2266/C++23
 `decltype(throw x)` where x is move-eligible parameter
Date: Tue, 06 Feb 2024 22:32:02 +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: 14.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: mpolacek at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: mpolacek at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 13.3
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-113789-4-z0zYr4NnWN@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-113789-4@http.gcc.gnu.org/bugzilla/>
References: <bug-113789-4@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=3D113789

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Um, that's not it.  Since

struct AutoPtr {
    AutoPtr() =3D default;
    AutoPtr(AutoPtr&) {}
};

template<class T> int
f (T p)
{
  throw p;
}

void
g ()
{
  f (AutoPtr ());
}

is rejected in C++23, we probably should have rejected the decltype(throw p=
, 1)
candidate and never get to the throw in the body of the function f.=