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* [Bug c++/105244] New: [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114
@ 2022-04-12 17:24 gscfq@t-online.de
2022-04-12 17:41 ` [Bug c++/105244] " mpolacek at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gscfq@t-online.de @ 2022-04-12 17:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105244
Bug ID: 105244
Summary: [9/10/11/12 Regression] ICE in implicitly_declare_fn,
at cp/method.cc:3114
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Started between 20190217 and 20190224,
with option -std=c++98 or -std=c++03 :
$ cat z1.cc
template <class T>
struct S
{
static T max();
};
template <class A = double>
struct V
{
double a = S<double>::max[1]();
};
template <class T>
V<> foo()
{
return {};
}
int main()
{
V<> b = foo<double>();
}
$ g++-12-20220410 -c z1.cc -std=c++03
z1.cc:9:12: warning: non-static data member initializers only available with
'-std=c++11' or '-std=gnu++11' [-Wc++11-extensions]
9 | double a = S<double>::max[1]();
| ^
z1.cc: In function 'V<> foo()':
z1.cc:14:10: warning: extended initializer lists only available with
'-std=c++11' or '-std=gnu++11' [-Wc++11-extensions]
14 | return {};
| ^
z1.cc:9:30: warning: pointer to a function used in arithmetic [-Wpointer-arith]
9 | double a = S<double>::max[1]();
| ~~~~~~~~~~~~~~~~^
z1.cc:14:11: internal compiler error: in implicitly_declare_fn, at
cp/method.cc:3114
14 | return {};
| ^
0x792b1d implicitly_declare_fn(special_function_kind, tree_node*, bool,
tree_node*, tree_node*)
../../gcc/cp/method.cc:3114
0x792f5c lazily_declare_fn(special_function_kind, tree_node*)
../../gcc/cp/method.cc:3415
0x7c347c maybe_lazily_declare
../../gcc/cp/name-lookup.cc:1896
0x7c347c get_class_binding(tree_node*, tree_node*, bool)
../../gcc/cp/name-lookup.cc:1926
0x6dc612 build_user_type_conversion_1
../../gcc/cp/call.cc:4151
0x6d54e1 implicit_conversion_1
../../gcc/cp/call.cc:2091
0x6d54e1 implicit_conversion
../../gcc/cp/call.cc:2132
0x6da2ce perform_implicit_conversion_flags(tree_node*, tree_node*, int, int)
../../gcc/cp/call.cc:12710
0x898699 convert_for_initialization(tree_node*, tree_node*, tree_node*, int,
impl_conv_rhs, tree_node*, int, int)
../../gcc/cp/typeck.cc:10067
0x8992fe check_return_expr(tree_node*, bool*)
../../gcc/cp/typeck.cc:10729
0x85d31e finish_return_stmt(tree_node*)
../../gcc/cp/semantics.cc:1195
0x7f3d17 cp_parser_jump_statement
../../gcc/cp/parser.cc:14307
0x7f3d17 cp_parser_statement
../../gcc/cp/parser.cc:12312
0x7f42f4 cp_parser_statement_seq_opt
../../gcc/cp/parser.cc:12850
0x7f43af cp_parser_compound_statement
../../gcc/cp/parser.cc:12802
0x812578 cp_parser_function_body
../../gcc/cp/parser.cc:25060
0x812578 cp_parser_ctor_initializer_opt_and_function_body
../../gcc/cp/parser.cc:25111
0x812a36 cp_parser_function_definition_after_declarator
../../gcc/cp/parser.cc:31242
0x813987 cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/cp/parser.cc:31158
0x813987 cp_parser_init_declarator
../../gcc/cp/parser.cc:22582
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/105244] [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114
2022-04-12 17:24 [Bug c++/105244] New: [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114 gscfq@t-online.de
@ 2022-04-12 17:41 ` mpolacek at gcc dot gnu.org
2022-04-19 13:08 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2022-04-12 17:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105244
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |9.5
Status|UNCONFIRMED |NEW
Priority|P3 |P2
Ever confirmed|0 |1
CC| |mpolacek at gcc dot gnu.org
Last reconfirmed| |2022-04-12
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r9-6097-g9d35a27a8353b5:
commit 9d35a27a8353b57ed11fa1cb7d747edf1c4faa01
Author: Jason Merrill <jason@redhat.com>
Date: Tue Feb 19 21:00:29 2019 -0500
PR c++/88368 - wrong 'use of deleted function'
Unfortunately it wasn't fixed by my
commit d4e0bdbc036644401f9de49f594b2bb16b287381
Author: Marek Polacek <polacek@redhat.com>
Date: Fri Mar 5 15:46:50 2021 -0500
c++: ICE on invalid with inheriting constructors [PR94751]
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/105244] [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114
2022-04-12 17:24 [Bug c++/105244] New: [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114 gscfq@t-online.de
2022-04-12 17:41 ` [Bug c++/105244] " mpolacek at gcc dot gnu.org
@ 2022-04-19 13:08 ` jakub at gcc dot gnu.org
2022-05-27 9:48 ` [Bug c++/105244] [10/11/12/13 " rguenth at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2022-04-19 13:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105244
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
template <class T>
struct S
{
static T max ();
};
template <class A = double>
struct V
{
double a = S<double>::max[0] ();
};
template <class T>
V<>
foo ()
{
return {};
}
int
main ()
{
V<> b = foo<double> ();
}
What happens is that synthesized_method_walk with diag = false calls get_nsdmi
with tf_none, and much deeper there is pointer_int_sum which has:
if (complain && warn_pointer_arith)
pedwarn (loc, OPT_Wpointer_arith,
"pointer to a function used in arithmetic");
else if (!complain)
return error_mark_node;
So, if get_nsdmi were called with tf_warning_or_error, we'd pedwarn on it, but
we are quite and just return error_mark_node from get_nsdmi in that case.
So, we end up with raises = error_mark_node and enter:
/* Can happen, e.g., in C++98 mode for an ill-formed non-static data
member initializer (c++/89914). Also, in C++98, we might have
failed to deduce RAISES, so try again but complain this time. */
if (cxx_dialect < cxx11)
synthesized_method_walk (type, kind, const_p, &raises, nullptr,
nullptr, nullptr, /*diag=*/true,
&inherited_ctor, inherited_parms);
/* We should have seen an error at this point. */
gcc_assert (seen_error ());
and ICE, because at this point whether we pedwarn or not depends on
-Wpointer-arith, and even if not, pedwarn can warn rather than error etc.
Not really sure what to do here, if it is intentional that with tf_none we are
stricter and fail even on things we could just warn or pedwarn without
-pedantic-errors.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/105244] [10/11/12/13 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114
2022-04-12 17:24 [Bug c++/105244] New: [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114 gscfq@t-online.de
2022-04-12 17:41 ` [Bug c++/105244] " mpolacek at gcc dot gnu.org
2022-04-19 13:08 ` jakub at gcc dot gnu.org
@ 2022-05-27 9:48 ` rguenth at gcc dot gnu.org
2022-06-28 10:49 ` jakub at gcc dot gnu.org
2023-07-07 10:43 ` [Bug c++/105244] [11/12/13/14 " rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-05-27 9:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105244
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|9.5 |10.4
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 9 branch is being closed
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/105244] [10/11/12/13 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114
2022-04-12 17:24 [Bug c++/105244] New: [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114 gscfq@t-online.de
` (2 preceding siblings ...)
2022-05-27 9:48 ` [Bug c++/105244] [10/11/12/13 " rguenth at gcc dot gnu.org
@ 2022-06-28 10:49 ` jakub at gcc dot gnu.org
2023-07-07 10:43 ` [Bug c++/105244] [11/12/13/14 " rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2022-06-28 10:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105244
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|10.4 |10.5
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 10.4 is being released, retargeting bugs to GCC 10.5.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/105244] [11/12/13/14 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114
2022-04-12 17:24 [Bug c++/105244] New: [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114 gscfq@t-online.de
` (3 preceding siblings ...)
2022-06-28 10:49 ` jakub at gcc dot gnu.org
@ 2023-07-07 10:43 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-07-07 10:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105244
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|10.5 |11.5
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 10 branch is being closed.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2022-04-12 17:24 [Bug c++/105244] New: [9/10/11/12 Regression] ICE in implicitly_declare_fn, at cp/method.cc:3114 gscfq@t-online.de
2022-04-12 17:41 ` [Bug c++/105244] " mpolacek at gcc dot gnu.org
2022-04-19 13:08 ` jakub at gcc dot gnu.org
2022-05-27 9:48 ` [Bug c++/105244] [10/11/12/13 " rguenth at gcc dot gnu.org
2022-06-28 10:49 ` jakub at gcc dot gnu.org
2023-07-07 10:43 ` [Bug c++/105244] [11/12/13/14 " rguenth at gcc dot gnu.org
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