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 B6C273861039; Tue, 14 Jul 2020 11:09:24 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B6C273861039
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1594724964;
 bh=ySBuVOrnpoULeHSvHCusoTN/EsjvoQDwmWxzClfIncU=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=rNMy0tkY2MWh4yrVvurYNSkEoh8oDv2AUeHqWUxqLqXfZR77xf/kmfLx9YyQPvYuo
 CNtELbMjRa0ZY1ktseNxRoj1B9BX8R8P6IfBzS/x7dUISyp05111OyQfgcRvCBdC0N
 C5ZXfgZJslep5WI+NcS25g0ECghsLOzfttisMVbQ=
From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/96194] [10/11 Regression] ICE in assign_temp, at
 function.c:984 during RTL pass: expand
Date: Tue, 14 Jul 2020 11:09:24 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 10.1.1
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: jakub at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 10.2
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-96194-4-ZjDG6O7jDS@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-96194-4@http.gcc.gnu.org/bugzilla/>
References: <bug-96194-4@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: <http://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: <http://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Tue, 14 Jul 2020 11:09:24 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96194

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
--- gcc/expr.c.jj       2020-07-13 19:09:33.173872178 +0200
+++ gcc/expr.c  2020-07-14 13:07:26.228801996 +0200
@@ -8382,7 +8382,9 @@ expand_constructor (tree exp, rtx target
       || GET_CODE (target) =3D=3D PARALLEL || modifier =3D=3D EXPAND_STACK=
_PARM
       /* Also make a temporary if the store is to volatile memory, to
         avoid individual accesses to aggregate members.  */
-      || (GET_CODE (target) =3D=3D MEM && MEM_VOLATILE_P (target)))
+      || (GET_CODE (target) =3D=3D MEM
+         && MEM_VOLATILE_P (target)
+         && !TREE_ADDRESSABLE (TREE_TYPE (exp))))
     {
       if (avoid_temp_mem)
        return NULL_RTX;
fixes this - even when volatile, for non-POD types the middle-end may not
create temporaries period.=