[Bug rtl-optimization/113394] New: ICE: 'verify_type' failed: type variant with 'TYPE_ALIAS_SET_KNOWN_P' with -fstrub=internal -g

[Bug rtl-optimization/113394] New: ICE: 'verify_type' failed: type variant with 'TYPE_ALIAS_SET_KNOWN_P' with -fstrub=internal -g

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113394

            Bug ID: 113394
           Summary: ICE: 'verify_type' failed: type variant with
                    'TYPE_ALIAS_SET_KNOWN_P' with -fstrub=internal -g
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu

This fails on the gcc.c-torture/compile/20020210-1.c testcase.

Compiler output:
$ x86_64-pc-linux-gnu-gcc -fstrub=internal -g
/repo/gcc-trunk/gcc/testsuite/gcc.c-torture/compile/20020210-1.c
/repo/gcc-trunk/gcc/testsuite/gcc.c-torture/compile/20020210-1.c:2:15: warning:
anonymous struct declared inside parameter list will not be visible outside of
this definition or declaration
    2 | void f(int a, struct {int b[a];} c) {}
      |               ^~~~~~
/repo/gcc-trunk/gcc/testsuite/gcc.c-torture/compile/20020210-1.c: In function
'f.strub.0':
/repo/gcc-trunk/gcc/testsuite/gcc.c-torture/compile/20020210-1.c:2:38: error:
type variant with 'TYPE_ALIAS_SET_KNOWN_P'
    2 | void f(int a, struct {int b[a];} c) {}
...
during RTL pass: final
/repo/gcc-trunk/gcc/testsuite/gcc.c-torture/compile/20020210-1.c:2:38: internal
compiler error: 'verify_type' failed
0x1837cee verify_type(tree_node const*)
        /repo/gcc-trunk/gcc/tree.cc:14386
0x1051814 gen_type_die_with_usage
        /repo/gcc-trunk/gcc/dwarf2out.cc:26258
0x104e566 gen_type_die
        /repo/gcc-trunk/gcc/dwarf2out.cc:26489
0x104e566 gen_decl_die
        /repo/gcc-trunk/gcc/dwarf2out.cc:27226
0x104a93d gen_subprogram_die
        /repo/gcc-trunk/gcc/dwarf2out.cc:24094
0x104eab9 gen_decl_die
        /repo/gcc-trunk/gcc/dwarf2out.cc:27106
0x104f6eb dwarf2out_decl
        /repo/gcc-trunk/gcc/dwarf2out.cc:27687
0x104fb8e dwarf2out_function_decl
        /repo/gcc-trunk/gcc/dwarf2out.cc:27702
0x10dfea4 rest_of_handle_final
        /repo/gcc-trunk/gcc/final.cc:4273
0x10dfea4 execute
        /repo/gcc-trunk/gcc/final.cc:4317
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.

$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-7237-20240115123527-g65678b2bae5-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-7237-20240115123527-g65678b2bae5-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240115 (experimental) (GCC)

[Bug debug/113394] ICE: 'verify_type' failed: type variant with 'TYPE_ALIAS_SET_KNOWN_P' with -fstrub=internal -g

[aoliva at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113394

Alexandre Oliva <aoliva at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |aoliva at gcc dot gnu.org
   Last reconfirmed|                            |2024-01-29
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1

--- Comment #1 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Mine

[Bug debug/113394] ICE: 'verify_type' failed: type variant with 'TYPE_ALIAS_SET_KNOWN_P' with -fstrub=internal -g

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113394

--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Alexandre Oliva <aoliva@gcc.gnu.org>:

https://gcc.gnu.org/g:d826596acb02edf41ac4f76af2aed5efa3b8c698

commit r14-8643-gd826596acb02edf41ac4f76af2aed5efa3b8c698
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Wed Jan 31 00:13:27 2024 -0300

    strub: drop nonaliased parm from build_ref_type_for [PR113394]

    Variant type copies can't have their own alias sets any more, and it's
    not like setting them affected the pointed-to objects anyway.


    for  gcc/ChangeLog

            PR debug/113394
            * ipa-strub.cc (build_ref_type_for): Drop nonaliased.  Adjust
            caller.

    for  gcc/testsuite/ChangeLog

            PR debug/113394
            * gcc.dg/strub-internal-pr113394.c: New.

[Bug debug/113394] ICE: 'verify_type' failed: type variant with 'TYPE_ALIAS_SET_KNOWN_P' with -fstrub=internal -g

[aoliva at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113394

Alexandre Oliva <aoliva at gcc dot gnu.org> changed:

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

--- Comment #3 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Fixed