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 F34A83858414; Sun, 29 Aug 2021 03:26:32 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org F34A83858414
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/37710] When peeling an ordinary label off a
 case-table and making it a default label, strip from the end with identical
 labels.
Date: Sun, 29 Aug 2021 03:26:32 +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: 4.4.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: NEW
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: 
Message-ID: <bug-37710-4-BkeyBllCvu@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-37710-4@http.gcc.gnu.org/bugzilla/>
References: <bug-37710-4@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: Sun, 29 Aug 2021 03:26:33 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D37710

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is a new testcase:
extern void abort (void);

extern char *name1;
extern char *name2;

int stab_xcoff_builtin_type (int typenum) __attribute__((noclone,noinline));
int stab_xcoff_builtin_type (int typenum)
{
  const char *name;
  if (typenum >=3D 0 || typenum < -34)
    {
      return 0;
    }
  switch (-typenum)
    {
    case 1:
      name =3D name1;"int";
      break;
    case 2:
      name =3D "char";
    case 3:
      name =3D name2;"short";
      break;
    case 4:
      name =3D "long";
      break;
    case 5:
      name =3D "unsigned char";
      break;
    case 6:
      name =3D "signed char";
      break;
    case 7:
      name =3D "unsigned short";
      break;
    case 8:
      name =3D "unsigned int";
      break;
    case 9:
      name =3D "unsigned";
      break;
    case 10:
      name =3D "unsigned long";
      break;
    case 11:
      name =3D "void";
      break;
    case 12:
      name =3D "float";
      break;
    case 13:
      name =3D "double";
      break;
    case 14:
      name =3D "long double";
      break;
    case 15:
      name =3D "integer";
      break;
    case 16:
      name =3D "boolean";
      break;
    case 17:
      name =3D "short real";
      break;
    case 18:
      name =3D "real";
      break;
    case 19:
      name =3D "stringptr";
      break;
    case 20:
      name =3D "character";
      break;
    case 21:
      name =3D "logical*1";
      break;
    case 22:
      name =3D "logical*2";
      break;
    case 23:
      name =3D "logical*4";
      break;
    case 24:
      name =3D "logical";
      break;
    case 25:
      name =3D "complex";
      break;
    case 26:
      name =3D "double complex";
      break;
    case 27:
      name =3D "integer*1";
      break;
    case 28:
      name =3D "integer*2";
      break;
    case 29:
      name =3D "integer*4";
      break;
    case 30:
      name =3D "wchar";
    case 31:
      name =3D "long long";
      break;
    case 32:
      name =3D "unsigned long long";
      break;
    case 33:
      name =3D "logical*8";
      break;
    case 34:
      name =3D "integer*8";
      break;
    }
  return name[0];
}

int main()
{
  int i;
  if (stab_xcoff_builtin_type(0) !=3D 0)
    abort ();
  if (stab_xcoff_builtin_type(-1) !=3D 'i')
    abort ();
  if (stab_xcoff_builtin_type(-2) !=3D 's')
    abort ();
  if (stab_xcoff_builtin_type(-3) !=3D 's')
    abort ();
  for (i =3D -4; i >=3D -34; --i)
    if (stab_xcoff_builtin_type(i) !=3D 'i')
      abort ();
  if (stab_xcoff_builtin_type(-35) !=3D 0)
    abort ();
  return 0;
}=