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 21E523856DE5; Wed, 13 Jul 2022 13:30:54 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 21E523856DE5
From: "sebastian.huber@embedded-brains.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/106282] New: m68k: Problem with thread-local storage and
 -mcpu=5206
Date: Wed, 13 Jul 2022 13:30:53 +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: 12.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: sebastian.huber@embedded-brains.de
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-106282-4@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: <https://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: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Wed, 13 Jul 2022 13:30:54 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106282

            Bug ID: 106282
           Summary: m68k: Problem with thread-local storage and -mcpu=3D5206
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sebastian.huber@embedded-brains.de
  Target Milestone: ---

The following test code (derived from Newlib l64a.c):

_Thread_local char _tls_l64a_buf[8];

static const char R64_ARRAY[] =3D
"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

char *
_l64a_r (long value)
{
  char *ptr;
  char *result;
  int i, index;
  unsigned long tmp =3D (unsigned long)value & 0xffffffff;

  result =3D _tls_l64a_buf;
  ptr =3D result;

  for (i =3D 0; i < 6; ++i)
    {
      if (tmp =3D=3D 0)
        {
          *ptr =3D '\0';
          break;
        }

      index =3D tmp & (64 - 1);
      *ptr++ =3D R64_ARRAY[index];
      tmp >>=3D 6;
    }

  return result;
}

compiled with

m68k-rtems6-gcc -mcpu=3D5206 -O2 -c test.c

fails with

/tmp/ccO3QdNm.s: Assembler messages:
/tmp/ccO3QdNm.s:24: Error: syntax error -- statement `lea
(_tls_l64a_buf@TLSLE+6,%a0),%a0' ignored=