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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109458] New: invalid use 'z' operand modifier in some
 cases mention the 'Z' operand modifier
Date: Sun, 09 Apr 2023 17:14:15 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: diagnostic
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109458

            Bug ID: 109458
           Summary: invalid use 'z' operand modifier in some cases mention
                    the 'Z' operand modifier
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---
            Target: x86_64-*-*

The problem here is the code in i386 does this:

case 'z':
...
          if (GET_MODE_CLASS (GET_MODE (x)) =3D=3D MODE_FLOAT)
            warning (0, "non-integer operand used with operand code %<z%>");
          /* FALLTHRU */

        case 'Z':

...
          else
            {
              output_operand_lossage ("invalid operand type used with "
                                      "operand code 'Z'");
              return;
            }

          output_operand_lossage ("invalid operand size for operand code 'Z=
'");


So the error messages for 'Z' modifier is shared with 'z' but only referenc=
es
'Z'.=