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 065F73858D20; Mon, 26 Jun 2023 14:54:16 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 065F73858D20
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1687791257;
	bh=zdm1agAj4CX7kEefHoc93OQbzNVF+AbemLP+H6tV5w0=;
	h=From:To:Subject:Date:From;
	b=ima4eQBZAeQnkZj+cSicw3ALv/LHNSoMR13UdrAA5cZhikZaRhb7hcEIv2p9K5dwe
	 vd1kUl33AnVTIF0wwWoJI39BDY7+CaXuemEJONrggp7WKN8laAnGZYSdUJypbPNHPy
	 pBaSxC/UoqQthYmA7lp8jycjhmI2ZSv/S2QR0uVQ=
From: "bergner at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/110411] New: ICE on simple memcpy test case when
 allowing generation of vector pair load/store insns
Date: Mon, 26 Jun 2023 14:54:15 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: bergner 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: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-110411-4@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=3D110411

            Bug ID: 110411
           Summary: ICE on simple memcpy test case when allowing
                    generation of vector pair load/store insns
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: bergner at gcc dot gnu.org
  Target Milestone: ---

bergner@ltcden2-lp1:~$ cat bug.c
#include <string.h>

struct s {
  long a;
  long b;
  long c;
  long d: 1;
};
unsigned long ptr;

void
bug (struct s *dst)
{
  struct s *src =3D (struct s *)(ptr & ~0xFUL);
  memcpy (dst, src, sizeof(struct s));
}

bergner@ltcden2-lp1:~$ gcc -S -O2 -mcpu=3Dpower10 -mblock-ops-vector-pair b=
ug.c
during RTL pass: final
bug.c: In function 'bug':
bug.c:16:1: internal compiler error: output_operand: invalid expression as
operand
   16 | }
      | ^
0x10dea57b output_operand_lossage(char const*, ...)
        /home/bergner/gcc/gcc-fsf-mainline-base/gcc/final.cc:3190
0x10dee2bb output_addr_const(_IO_FILE*, rtx_def*)
        /home/bergner/gcc/gcc-fsf-mainline-base/gcc/final.cc:3787
...=