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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/109122] std::ranges::find segfaults with gcc (trunk but not
 12.2) on godbolt
Date: Tue, 14 Mar 2023 14:33:17 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Keywords: ice-on-invalid-code, needs-reduction
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Message-ID: <bug-109122-4-UCBrBtW4X9@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109122

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Backtrace:

#0  0x0000000000d482c8 in pp_cxx_unqualified_id (pp=3D0x40326a0
<actual_pretty_printer>, t=3D<tree 0x0>)
    at /home/mpolacek/src/gcc/gcc/cp/cxx-pretty-print.cc:129
#1  0x0000000000d48574 in pp_cxx_unqualified_id (pp=3D0x40326a0
<actual_pretty_printer>,=20
    t=3D<record_type 0x7fffe76112a0>) at
/home/mpolacek/src/gcc/gcc/cp/cxx-pretty-print.cc:174
#2  0x0000000000d494ac in pp_cxx_qualified_id (pp=3D0x40326a0
<actual_pretty_printer>,=20
    t=3D<record_type 0x7fffe76112a0>) at
/home/mpolacek/src/gcc/gcc/cp/cxx-pretty-print.cc:306
#3  0x0000000000d4c0ba in cxx_pretty_printer::simple_type_specifier
(this=3D0x40326a0 <actual_pretty_printer>,=20
    t=3D<record_type 0x7fffe76112a0>) at
/home/mpolacek/src/gcc/gcc/cp/cxx-pretty-print.cc:1359
#4  0x0000000001153eb8 in pp_c_specifier_qualifier_list (pp=3D0x40326a0
<actual_pretty_printer>,=20
    t=3D<record_type 0x7fffe76112a0>) at
/home/mpolacek/src/gcc/gcc/c-family/c-pretty-print.cc:514
#5  0x0000000001153c48 in pp_c_specifier_qualifier_list (pp=3D0x40326a0
<actual_pretty_printer>,=20
    t=3D<reference_type 0x7fffe7710f18>) at
/home/mpolacek/src/gcc/gcc/c-family/c-pretty-print.cc:463
#6  0x000000000115496d in c_pretty_printer::type_id (this=3D0x40326a0
<actual_pretty_printer>,=20
    t=3D<reference_type 0x7fffe7710f18>) at
/home/mpolacek/src/gcc/gcc/c-family/c-pretty-print.cc:712
#7  0x0000000000d4e262 in cxx_pretty_printer::type_id (this=3D0x40326a0
<actual_pretty_printer>,=20
    t=3D<reference_type 0x7fffe7710f18>) at
/home/mpolacek/src/gcc/gcc/cp/cxx-pretty-print.cc:1914
#8  0x0000000000d51f52 in pp_cxx_parameter_mapping (pp=3D0x40326a0
<actual_pretty_printer>,=20
    map=3D<tree_list 0x7fffe73ce668>) at
/home/mpolacek/src/gcc/gcc/cp/cxx-pretty-print.cc:2838
#9  0x0000000000d52109 in pp_cxx_atomic_constraint (pp=3D0x40326a0
<actual_pretty_printer>,=20
    t=3D<atomic_constr 0x7fffe73cf4c0>) at
/home/mpolacek/src/gcc/gcc/cp/cxx-pretty-print.cc:2858
#10 0x0000000000d52291 in pp_cxx_constraint (pp=3D0x40326a0
<actual_pretty_printer>,=20
    t=3D<atomic_constr 0x7fffe73cf4c0>) at
/home/mpolacek/src/gcc/gcc/cp/cxx-pretty-print.cc:2886
#11 0x0000000000de46e5 in dump_expr (pp=3D0x40326a0 <actual_pretty_printer>,
t=3D<atomic_constr 0x7fffe73cf4c0>,=20
    flags=3D0) at /home/mpolacek/src/gcc/gcc/cp/error.cc:3080
#12 0x0000000000de518f in expr_to_string (decl=3D<atomic_constr 0x7fffe73cf=
4c0>)
    at /home/mpolacek/src/gcc/gcc/cp/error.cc:3315
#13 0x0000000000de8e2c in cp_printer (pp=3D0x424c120, text=3D0x7fffffffa0e0,
spec=3D0x424e071 "E", precision=3D0,=20
    wide=3Dfalse, set_locus=3Dfalse, verbose=3Dfalse, quoted=3D0x7fffffff9c=
df,
buffer_ptr=3D0x424de80)
    at /home/mpolacek/src/gcc/gcc/cp/error.cc:4484
#14 0x0000000003228de9 in pp_format (pp=3D0x424c120, text=3D0x7fffffffa0e0)
    at /home/mpolacek/src/gcc/gcc/pretty-print.cc:1475
#15 0x00000000031fb2c6 in diagnostic_report_diagnostic (context=3D0x41e7980
<global_diagnostic_context>,=20
    diagnostic=3D0x7fffffffa0e0) at /home/mpolacek/src/gcc/gcc/diagnostic.c=
c:1579
#16 0x00000000031fb9e2 in diagnostic_impl (richloc=3D0x7fffffffa1a0,
metadata=3D0x0, opt=3D-1,=20
    gmsgid=3D0x32f0570 "the expression %qE evaluated to %<false%>",
ap=3D0x7fffffffa250, kind=3DDK_NOTE)
    at /home/mpolacek/src/gcc/gcc/diagnostic.cc:1743
#17 0x00000000031fbe6d in inform (location=3D19346236,=20
    gmsgid=3D0x32f0570 "the expression %qE evaluated to %<false%>")
    at /home/mpolacek/src/gcc/gcc/diagnostic.cc:1822
#18 0x0000000000cfecca in diagnose_atomic_constraint (t=3D<atomic_constr
0x7fffe73cf4c0>,=20
    args=3D<tree_vec 0x7fffe73ce6b8>, result=3D<integer_cst 0x7fffea227318>,
info=3D...)
    at /home/mpolacek/src/gcc/gcc/cp/constraint.cc:3856=