[Bug debug/113480] New: avr: internal compiler error: in add_dwarf_attr, at dwarf2out.cc:4503

[Bug debug/113480] New: avr: internal compiler error: in add_dwarf_attr, at dwarf2out.cc:4503

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113480

            Bug ID: 113480
           Summary: avr: internal compiler error: in add_dwarf_attr, at
                    dwarf2out.cc:4503
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gjl at gcc dot gnu.org
  Target Milestone: ---

This is a relatively new ICE that I see on the avr target.

Compliled with "version 14.0.1 20240118 (experimental) (avr)"

$ avr-gcc pr83801.c -g -O3 -std=gnu99 -mmcu=atmega128

/* { dg-options { "-std=gnu99" } } */
/* { dg-do run { target { ! avr_tiny } } } */

__attribute((noinline,noclone))
char to_ascii (unsigned i)
{
    static const char __flash code_tab[] = "0123456789";
    return code_tab[i];
}

int main()
{
  if (to_ascii (2) != '2')
    __builtin_abort();

  return 0;
}

I am not sure if it's related to address-spaces, but there are fails that don't
have ASes like gcc.target/avr/torture/pr109907-2.c (but that has __int24
though).

Target: avr
Configured with: ../../source/gcc-master/configure --target=avr --disable-nls
--with-dwarf2 --with-gnu-as --with-gnu-ld --disable-shared
--with-fixed-point=no  --with-long-double=64 --enable-languages=c,c++
Thread model: single
Supported LTO compression algorithms: zlib
gcc version 14.0.1 20240118 (experimental) (GCC)

[Bug debug/113480] [14 Regression] avr: internal compiler error: in add_dwarf_attr, at dwarf2out.cc:4503

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113480

--- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
The ICE actially goes away when I remove the __flash from the test case posted
in comment #0.

[Bug debug/113480] [14 Regression] avr: internal compiler error: in add_dwarf_attr, at dwarf2out.cc:4503

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113480

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-checking
   Target Milestone|---                         |14.0

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
This is the assert looking we don't add duplicate attrs, only enabled with
-fchecking.  Does it fail with GCC 13 as well (if you add -fchecking)?

[Bug debug/113480] [14 Regression] avr: internal compiler error: in add_dwarf_attr, at dwarf2out.cc:4503

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113480

--- Comment #3 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #2)
> Does it fail with GCC 13 as well (if you add -fchecking)?

Yes.  And it goes away without -g.

[Bug debug/113480] avr: internal compiler error: in add_dwarf_attr, at dwarf2out.cc:4503

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113480

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[14 Regression] avr:        |avr: internal compiler
                   |internal compiler error: in |error: in add_dwarf_attr,
                   |add_dwarf_attr, at          |at dwarf2out.cc:4503
                   |dwarf2out.cc:4503           |
   Target Milestone|14.0                        |---

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
So it's not clear to when it's a regression (the checking was added with GCC
8).  There might be a duplicate for this bug.

[Bug debug/113480] avr: internal compiler error: in add_dwarf_attr, at dwarf2out.cc:4503

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113480

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=100530

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Most likely a dup of bug 100530.

[Bug debug/113480] avr: internal compiler error: in add_dwarf_attr, at dwarf2out.cc:4503

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113480

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Yes it is a dup of bug 100530.

*** This bug has been marked as a duplicate of bug 100530 ***