[Bug debug/113519] New: ICE: in replace_child, at dwarf2out.cc:5704 with -g -mbig-endian -fsso-struct=little-endian -fdebug-types-section

[Bug debug/113519] New: ICE: in replace_child, at dwarf2out.cc:5704 with -g -mbig-endian -fsso-struct=little-endian -fdebug-types-section

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

            Bug ID: 113519
           Summary: ICE: in replace_child, at dwarf2out.cc:5704 with -g
                    -mbig-endian -fsso-struct=little-endian
                    -fdebug-types-section
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: debug
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: riscv64-unknown-linux-gnu

Created attachment 57171
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57171&action=edit
reduced testcase

Compiler output:
$ riscv64-unknown-linux-gnu-gcc -g -mbig-endian -fsso-struct=little-endian
-fdebug-types-section testcase.c 
testcase.c:4:1: internal compiler error: in replace_child, at dwarf2out.cc:5704
    4 | } s;
      | ^
0xa15089 replace_child
        /repo/gcc-trunk/gcc/dwarf2out.cc:5704
0x123fd37 remove_child_or_replace_with_skeleton
        /repo/gcc-trunk/gcc/dwarf2out.cc:8625
0x123fd37 break_out_comdat_types
        /repo/gcc-trunk/gcc/dwarf2out.cc:8772
0x126da3d dwarf2out_early_finish
        /repo/gcc-trunk/gcc/dwarf2out.cc:33096
0x11cb11f symbol_table::finalize_compilation_unit()
        /repo/gcc-trunk/gcc/cgraphunit.cc:2579
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

$ riscv64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-riscv64/bin/riscv64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-8284-20240119180625-g54519030b05-checking-yes-rtl-df-extra-riscv64/bin/../libexec/gcc/riscv64-unknown-linux-gnu/14.0.1/lto-wrapper
Target: riscv64-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --with-isa-spec=2.2
--with-sysroot=/usr/riscv64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=riscv64-unknown-linux-gnu
--with-ld=/usr/bin/riscv64-unknown-linux-gnu-ld
--with-as=/usr/bin/riscv64-unknown-linux-gnu-as --disable-multilib
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-8284-20240119180625-g54519030b05-checking-yes-rtl-df-extra-riscv64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240119 (experimental) (GCC)

[Bug debug/113519] [14 Regression] ICE: in replace_child, at dwarf2out.cc:5704 with -g -fdebug-types-section -fsso-struct=big-endian (or little-endian if the target is big-endian)

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|ICE: in replace_child, at   |[14 Regression] ICE: in
                   |dwarf2out.cc:5704 with -g   |replace_child, at
                   |-mbig-endian                |dwarf2out.cc:5704 with -g
                   |-fsso-struct=little-endian  |-fdebug-types-section
                   |-fdebug-types-section       |-fsso-struct=big-endian (or
                   |                            |little-endian if the target
                   |                            |is big-endian)
             Target|riscv64-unknown-linux-gnu   |x86_64-pc-linux-gnu
   Target Milestone|---                         |14.0

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Can be reproduced on x86_64-linux with just ` -g -fsso-struct=big-endian
-fdebug-types-section`

[Bug debug/113519] [14 Regression] ICE: in replace_child, at dwarf2out.cc:5704 with -g -fdebug-types-section -fsso-struct=big-endian (or little-endian if the target is big-endian)

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2024-01-20
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |needs-bisection

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

Note the assert is NOT a checking assert so it is not just masked due to
release checking ...

[Bug debug/113519] [14 Regression] ICE: in replace_child, at dwarf2out.cc:5704 with -g -fdebug-types-section -fsso-struct=big-endian (or little-endian if the target is big-endian)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Hmm, -fdebug-types-section ... mumbles sth about axing that.

[Bug debug/113519] [14 Regression] ICE: in replace_child, at dwarf2out.cc:5704 with -g -fdebug-types-section -fsso-struct=big-endian (or little-endian if the target is big-endian)

[mjires at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

Michal Jireš <mjires at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|needs-bisection             |
                 CC|                            |ebotcazou at gcc dot gnu.org,
                   |                            |mjires at gcc dot gnu.org
   Last reconfirmed|2024-01-20 00:00:00         |2024-2-8

--- Comment #4 from Michal Jireš <mjires at gcc dot gnu.org> ---
Bisected to r14-7098-g5d8b60effc7268.

[Bug debug/113519] [14 Regression] ICE: in replace_child, at dwarf2out.cc:5704 with -g -fdebug-types-section -fsso-struct=big-endian (or little-endian if the target is big-endian)

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

Jeffrey A. Law <law at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
                 CC|                            |law at gcc dot gnu.org

[Bug debug/113519] [14 Regression] ICE: in replace_child, at dwarf2out.cc:5704 with -g -fdebug-types-section -fsso-struct=big-endian (or little-endian if the target is big-endian)

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |ebotcazou at gcc dot gnu.org
             Status|NEW                         |ASSIGNED

--- Comment #5 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
P1 for an artificial test with exotic options is probably an oversight, but I'm
going to have a look in any case.

[Bug debug/113519] [14 regression] ICE: in replace_child, at dwarf2out.cc:5704 with -g -fdebug-types-section -fsso-struct

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Eric Botcazou <ebotcazou@gcc.gnu.org>:

https://gcc.gnu.org/g:0c4df2c3c38ca15c123e9a801b617e63256c83a3

commit r14-9423-g0c4df2c3c38ca15c123e9a801b617e63256c83a3
Author: Eric Botcazou <ebotcazou@adacore.com>
Date:   Mon Mar 11 09:24:50 2024 +0100

    Fix placement of recently implemented DIE

    It's the DIE added for enumeration types with reverse scalar storage order.

    gcc/
            PR debug/113519
            PR debug/113777
            * dwarf2out.cc (gen_enumeration_type_die): In the reverse case,
            generate the DIE with the same parent as in the regular case.

    gcc/testsuite/
            * gcc.dg/sso-20.c: New test.
            * gcc.dg/sso-21.c: Likewise.

[Bug debug/113519] [14 regression] ICE: in replace_child, at dwarf2out.cc:5704 with -g -fdebug-types-section -fsso-struct

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113519

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
.