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 59D4D3858C31; Thu, 21 Mar 2024 16:34:53 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 59D4D3858C31
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1711038893;
	bh=ctZAw2fuz5ghXnMpevXMmafCp1ko/MRC4OITMYpS8PY=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=J3Mr8foiZ95hK4SkUVTrb8W2gvyezLQ+/yAMqvz7mrNLcFAf80miBFMaILx3YhXfV
	 6O00c94pYcVF0YLlFzIVZNLYGHmLoMEYWV3ezhatyqEQ08KoLaZZKakeK8EgYxXuEg
	 j1fnUz9vPrpMYf7M9B1UhK9DyChhbC2MwrK8SZ2w=
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/114417] std::experimental::simd is not a POD (by ABI
 definitions) and is always passed by reference instead of by value
Date: Thu, 21 Mar 2024 16:34:53 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: unknown
X-Bugzilla-Keywords: ABI
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
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: short_desc component
Message-ID: <bug-114417-4-UOLEvSlD3O@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-114417-4@http.gcc.gnu.org/bugzilla/>
References: <bug-114417-4@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=3D114417

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|std::experimental::simd     |std::experimental::simd is
                   |parameters are passed by    |not a POD (by ABI
                   |memory on x64 , not using   |definitions) and is always
                   |the available sse registers |passed by reference instead
                   |                            |of by value
          Component|target                      |libstdc++

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Most likely because stdx::fixed_size_simd is not a POD type.=