[Bug middle-end/114209] New: ICE: verify_gimple failed: incorrect sharing of tree nodes at -O and above

[Bug middle-end/114209] New: ICE: verify_gimple failed: incorrect sharing of tree nodes at -O and above

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114209

            Bug ID: 114209
           Summary: ICE: verify_gimple failed: incorrect sharing of tree
                    nodes at -O and above
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: i686-pc-linux-gnu

Created attachment 57595
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57595&action=edit
reduced testcase

Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -m32 testcase.c 
testcase.c: In function 'foo':
testcase.c:7:1: error: incorrect sharing of tree nodes
    7 | foo(void)
      | ^~~
MEM[(_BitInt(128) *)p.0_1]
# VUSE <.MEM_5(D)>
_8 = VIEW_CONVERT_EXPR<vector(1) _Float128>(MEM[(_BitInt(128) *)p.0_1]);
during GIMPLE pass: bitintlower
testcase.c:7:1: internal compiler error: verify_gimple failed
0x155df5d verify_gimple_in_cfg(function*, bool, bool)
        /repo/gcc-trunk/gcc/tree-cfg.cc:5663
0x13cccb4 execute_function_todo
        /repo/gcc-trunk/gcc/passes.cc:2088
0x13cd20e execute_todo
        /repo/gcc-trunk/gcc/passes.cc:2142
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-r14-9248-20240301110451-gd3d0fcb6527-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 --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-9248-20240301110451-gd3d0fcb6527-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240301 (experimental) (GCC)

[Bug middle-end/114209] ICE: verify_gimple failed: incorrect sharing of tree nodes at -O and above

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114209

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2024-03-02
     Ever confirmed|0                           |1
                 CC|                            |pinskia at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

[Bug middle-end/114209] ICE: verify_gimple failed: incorrect sharing of tree nodes at -O and above

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114209

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

https://gcc.gnu.org/g:c27148f2f40654a638bcf429633be1c0561529d5

commit r14-9291-gc27148f2f40654a638bcf429633be1c0561529d5
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Mon Mar 4 11:15:07 2024 +0100

    bitint: Fix tree node sharing bug [PR114209]

    We ICE on the following testcase due to invalid tree sharing.
    The second hunk fixes that, the first one is from me looking around at
    other spots which might need end up with invalid tree sharing too.

    2024-03-04  Jakub Jelinek  <jakub@redhat.com>

            PR middle-end/114209
            * gimple-lower-bitint.cc (bitint_large_huge::limb_access): Call
            unshare_expr when creating a MEM_REF from MEM_REF.
            (bitint_large_huge::lower_stmt): Call unshare_expr.

            * gcc.dg/bitint-97.c: New test.

[Bug middle-end/114209] ICE: verify_gimple failed: incorrect sharing of tree nodes at -O and above

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114209

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.