[Bug debug/46322] New: ICE: RTL check: expected code 'const_int', have 'reg' in dbxout_parms, at dbxout.c:3498 with -gstabs

[Bug debug/46322] New: ICE: RTL check: expected code 'const_int', have 'reg' in dbxout_parms, at dbxout.c:3498 with -gstabs

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46322

           Summary: ICE: RTL check: expected code 'const_int', have 'reg'
                    in dbxout_parms, at dbxout.c:3498 with -gstabs
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


----- testcase.c -----
void foo (int i)
{
    char c[0x100000000UL];
}
----------------------

Compiler output:
$ gcc -gstabs testcase.c
testcase.c: In function 'foo':
testcase.c:4:1: internal compiler error: RTL check: expected code 'const_int',
have 'reg' in dbxout_parms, at dbxout.c:3498
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions (all with RTL checking):
r166306 - crash
4.5 r165781 - crash
4.4 r165754 - crash

[Bug debug/46322] ICE: RTL check: expected code 'const_int', have 'reg' in dbxout_parms, at dbxout.c:3498 with -gstabs

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46322

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-08-13
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is still valid:
            /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))),
               in which case we want the value of that CONST_INT,
               or (MEM (REG ...)),
               in which case we use a value of zero.  */
            if (!REG_P (XEXP (DECL_RTL (parms), 0)))
              number = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1));
            else
              number = 0;

I heard a rumor that dbxout was going to be removed either in GCC 12 or 13.

[Bug debug/46322] ICE: RTL check: expected code 'const_int', have 'reg' in dbxout_parms, at dbxout.c:3498 with -gstabs

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46322

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX
   Target Milestone|---                         |13.0

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Stabs debugging support was removed in GCC 13 by r13-2361-g7e0db0cdf01e9c so
closing as won't fix.